DOCSLIB.ORG

ACTION: Filed DATE: 06/16/2008 11:33 AM ENACTED

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
ACTION: Filed DATE: 06/16/2008 11:33 AM ENACTED ACTION: Filed ENACTED DATE: 06/16/2008 11:33 AM Appendix Rev. July 2008 4123-17-04144 Insurance Fund Manual NATIONAL COUNCIL ON COMPENSATION INSURANCE (NCCI) CLASSIFICATION OF INDUSTRIES Alphabetical index begins on page 145. This index is furnished as a quick look up tool for locating specific classifica- tion numbers. Subsequent referencing of the numerical index is suggested to ensure proper classification. Numerical index begins on page 203. This information is associated with 4123-17-04. © Classifications reprinted with permission of the National Council on Compensation Insurance, all rights reserved. APPENDIX p(37142) pa(52177) d(186912) ra(156431) print date: 06/16/2008 9:01 PM Rev. July 2008 145 Insurance Fund Manual NATIONAL COUNCIL ON COMPENSATION INSURANCE (NCCI) ALPHABETICAL INDEX CLASSIFICATION OF INDUSTRIES A Abrasive wheel manufacturing and drivers......................................................................................................... 1748 Absorbent cotton manufacturing......................................................................................................................... 4693 Accountant, auditor or factory cost or office systematizer-traveling ................................................................... 8803 Acetate textile fiber ............................................................................................................................................. 2305 Acetylene gas machine installation and drivers.................................................................................................. 3724 Acetylene gas manufacturing and drivers .......................................................................................................... 4635 Acetylene torch manufacturing .......................................................................................................................... 3634 Acid manufacturing ............................................................................................................................................. 4815 Acoustical ceiling installation .............................................................................................................................. 5020 Acoustical material installation and drivers......................................................................................................... 5479 Adding machine manufacturing .......................................................................................................................... 3574 Addressing or mailing companies and clerical ................................................................................................... 8800 Adjustment training centers – all other employees ............................................................................................. 9101 Adjustment training centers – professional employees and clerical ................................................................... 8868 Advertising company away from shop and drivers ............................................................................................. 9554 Advertising display service and drivers .............................................................................................................. 9501 Advertising display service – for stores and drivers ........................................................................................... 9521 Advertising displays manufacturing – wooden ................................................................................................... 2812 Advertising material distribution – mobile and door to door................................................................................ 7380 Advertising sign manufacturing – celluloid ......................................................................................................... 4452 Advertising solicitors ........................................................................................................................................... 8742 Aerial photographer – ground laboratory employees ......................................................................................... 4361 Aerosol products packaging ............................................................................................................................... 2111 Agate or enamel wear manufacturing................................................................................................................. 3224 Agricultural implement stores – not farm machinery .......................................................................................... 8116 Agricultural machinery manufacturing ................................................................................................................ 3507 Agricultural tool manufacturing – hand ............................................................................................................... 3126 Agronomists – research and development of new seeds ................................................................................... 8102 Air conditioners – portable – installation, service or repair – residential............................................................. 9519 Air conditioning filter media manufacturing......................................................................................................... 2288 Air conditioning parts store ................................................................................................................................. 8010 Air conditioning and Heating and Refrigeration Systems – Shop and Outside and Drivers ............................... 5537 Air conditioning – automobile – installation, service or repair and drivers .......................................................... 8380 Air conditioning – non-portable – air flow balancing and testing ........................................................................ 8601 Air conditioning – portable – installation or service and drivers.......................................................................... 9519 Air pressure or steam gauge manufacturing ...................................................................................................... 3574 Air rifle manufacturing – metal parts ................................................................................................................... 3400 Air traffic controller.............................................................................................................................................. 7403 Aircraft or Helicopter Engine Mfg. - See “Aviation” engine manufacturing ......................................................... 3826 Aircraft or Helicopter Operation - See “Aviation” landing mats manufacturing – by welding and drivers ........... 3040 Aircraft or automobile – preparing and crating for shipment............................................................................... 7360 Aircraft parts and accessories store ................................................................................................................... 8010 Aircraft Salvaging ............................................................................................................................................... 3821 Airline or helicopter – ticket sellers away from airport ........................................................................................ 7403 Airplane manufacturing....................................................................................................................................... 3830 Airplane propeller manufacturing – wood ........................................................................................................... 2790 Airplane subassemblies manufacturing – metal cowling, wing, tabs and aileron, etc. ....................................... 3076 Airplane subassemblies manufacturing – wood ................................................................................................. 2883 Airplane wheel manufacturing ........................................................................................................................... 3803 Airplane – cam and gear manufacturing ............................................................................................................ 3635 © Classifications reprinted with permission of the National Council on Compensation Insurance, all rights reserved. Rev. July 2008 146 Insurance Fund Manual Airplane – toy manufacturing ............................................................................................................................. 2790 Airport construction – grading and drivers .......................................................................................................... 6217 Airport construction – paving and drivers ........................................................................................................... 5506 Airport or heliport operator and drivers ............................................................................................................... 7403 Airport runway construction – concrete or cement ............................................................................................. 5506 Airport security screening of passengers by contractor...................................................................................... 7720 Airport warming apron construction – concrete or cement ................................................................................
Load more

Recommended publications
  • The Return of Coppersmith's Attack:Practical Factorization of Widely Used RSA Moduli
    Session H1: Crypto Attacks CCS’17, October 30-November 3, 2017, Dallas, TX, USA The Return of Coppersmith’s Aack: Practical Factorization of Widely Used RSA Moduli Matus Nemec Marek Sys∗ Petr Svenda Masaryk University, Masaryk University Masaryk University Ca’ Foscari University of Venice [email protected] [email protected] [email protected] Dusan Klinec Vashek Matyas EnigmaBridge, Masaryk University Masaryk University [email protected] [email protected] ABSTRACT 1 INTRODUCTION We report on our discovery of an algorithmic aw in the construc- RSA [69] is a widespread algorithm for asymmetric cryptography tion of primes for RSA key generation in a widely-used library used for digital signatures and message encryption. RSA security of a major manufacturer of cryptographic hardware. e primes is based on the integer factorization problem, which is believed generated by the library suer from a signicant loss of entropy. to be computationally infeasible or at least extremely dicult for We propose a practical factorization method for various key lengths suciently large security parameters – the size of the private primes including 1024 and 2048 bits. Our method requires no additional and the resulting public modulus N . As of 2017, the most common information except for the value of the public modulus and does length of the modulus N is 2048 bits, with shorter key lengths not depend on a weak or a faulty random number generator. We such as 1024 bits still used in practice (although not recommend devised an extension of Coppersmith’s factorization aack utilizing anymore) and longer lengths like 4096 bits becoming increasingly an alternative form of the primes in question.
    [Show full text]
  • The Industrial Role of Scrap Copper at Jamestown Carter C
    THE JOURNAL OF THE JAMESTOWN Carter C. Hudgins REDISCOVERY CENTER “Old World Industries and New World Hope: The VOL. 2 JAN. 2004 Industrial Role of Scrap Copper at Jamestown” Available from https://www.historicjamestowne.org Old World Industries and New World Hope: The Industrial Role of Scrap Copper at Jamestown Carter C. Hudgins 1. Introduction Jamestown scholars have long believed that during the first ten years of the Virginia Colony (1607-1617), settlers attempted to elude starvation by trading European copper with local Powhatans in exchange for foodstuffs. Contem- porary reports, such as those written by John Smith, docu- Figure 1. A sample of scrap waste selected from copper found at ment this bartering, and recent archaeological discoveries Jamestown. of over 7,000 pieces of scrap sheet copper within James Fort seem to substantiate the existence of this commerce (Figure 2. Jamestown’s Scrap Copper 1). Although much of this waste metal was undoubtedly Examinations of the scrap copper found in Jamestown associated with the exchange of goods between the English Rediscovery’s five largest Fort-Period features—Pit 1, Pit 3, and Powhatans, this study suggests that significant amounts Structure 165, SE Bulwark Trench, and Feature JR 731— of Jamestown’s scrap copper were also related to contempo- reveal that a significant percentage of the copper bears manu- rary English copper industries and an anticipation of met- facturing evidence that can be credited to coppersmithing allurgical resources in the New World. industries in England. Several examples of copper that pos- th During the late 16 century, the Society of Mines Royal sess the markings of English industry are shown in Figures and the Society of Minerals and Battery Works were formed 2, 3 and 4, and relate to the making of copper wire, buckles to mine English metals, produce copper-alloy products, and and kettles respectively.
    [Show full text]
  • Coppersmith Media
    Contact: Todd Messelt Media Line Communications 612.222.8585 [email protected] Twin Cities-based CopperSmith® emerges as leading e-retailer of upscale home products, including in-house brand of handmade, custom-order, solid copper range hoods, sinks, bathtubs and more Specialty manufacturer and e-retailer of high-end housewares credits steady growth to a direct-to-consumer business model, offering live product support, free design assistance, and drop-shipping services to homeowners, interior designers and home builders. GOLDEN VALLEY, MINN.—In 2009, Ryan Grambart dove head-first into launching CopperSmith® ( www. worldcoppersmith.com ), galvanized by the allure of a semi-precious metal that has attracted artists, designers and architects for more than 10,000 years. Since its humble beginnings as a purveyor of copper gutter systems for Twin Cities-area homes, Grambart’s fledging company has emerged as a leading Online retailer and specialty in-house manufacturer of upscale, premium-quality products for discerning homeowners; while offering wholesale B2B programs and drop-shipping services to contractors and interior designers seeking made-to-order range hoods, kitchen sinks, farmhouse sinks, bathroom sinks, tables, light fixtures, mirrors, towel bars and rings, cabinet knobs and pulls, flooring tiles and registers, cookware and more. “We got our start manufacturing, installing and retailing a small line of specialty products we believed in,” says Grambart. “We’re not just another e-commerce company posting a zillion skus hoping for some quick and easy sales. We have a thriving installation business that serves local building contractors and provides front-line market research and hands-on working knowledge of the products we sell nationally.” Direct-to-Consumer Approach CopperSmith® was founded on the principle that our quality of life is profoundly affected by the products we surround ourselves with.
    [Show full text]
  • U.S. Navy Enlisted Ratings
    U.S. Navy Enlisted Ratings Designation Title ABCM Master Chief Aviation Boatswain's Mate (E-9 only) ABE Aviation Boatswain's Mate Launch & Recovery Equipment ABF Aviation Boatswain's Mate Fuels ABH Aviation Boatswain's Mate Aircraft Handling ABM Aviation Boatswain's Mate (1944-1948) ABU Aviation Boatswain's Mate Utility AC Air Controlman (1948-1977) AC Air Traffic Controller (1977- ) ACM Aviation Carpenter's Mate (1921-1940) (to AM) ACT Aircontrolman Tower ACW Aircontrolman Early Warning AD Aviation Machinist's Mate (1948- ) ADE Aviation Machinist's Mate Engine Mechanic ADF Aviation Machinist's Mate Flight Engineer ADG Aviation Machinist's Mate Carburetor Mechanic ADJ Aviation Machinist's Mate Jet Engine Mechanic ADP Aviation Machinist's Mate Propeller Mechanic ADR Aviation Machinist's Mate Reciprocating Engine Mechanic AE Aviation Electrician's Mate (1948- ) AEM Aviation Electrician's Mate (1942-1948) AETM Aviation Electronic Technician's Mate (1945-1948) AF Photographer's Mate (1948-1950) (to PH) AFCM Master Chief Aircraft Maintenanceman (E-9 only) (1963- ) Aerog Aerographer (1923-1942) AerM Aerographer's Mate (1942-1948) AG Aerographer's Mate (1948- ) AK Aviation Storekeeper (1948-2003) (to SK) AL Aviation Electronicsman (1948-1959) (to AT) AM Aviation Metalsmith (1921-1948) AM Aviation Structural Mechanic (E-8 only) AME Aviation Structural Mechanic Safety Equipment AMH Aviation Structural Mechanic Hydraulic Mechanic (1948-2001)(to AM) AMM Aviation Machinist's Mate (1921-1948) (to AD) AMMC Aviation Machinist's Mate Carburetor Mechanic AMMF Aviation Machinist's Mate Flight Engineer AMMH Aviation Machinist's Mate Hydraulic Mechanic AMMI Aviation Machinist's Mate Instrument Mechanic AMMP Aviation Machinist's Mate Propeller Mechanic AMMT Aviation Machinist's Mate Gas Turbine Mechanic AMS Aviation Structural Mechanic Structures (1948-2001)(to AM) AO Aviation Ordnanceman (1948- ) AOMB Aviation Bombsight Mechanic (1943-1944) U.S.
    [Show full text]
  • Cuivres, Bronzes Et Laitons Médiévaux / Medieval Copper, Bronze and Brass
    CUIVRES, BRONZES ET LAITONS MÉDIÉVAUX / MEDIEVAL COPPER, BRONZE AND BRASS Histoire, archéologie et archéométrie des productions en laiton, bronze et autres alliages à base de cuivre dans l’Europe médiévale (12e-16e siècles) History, archaeology and archaeometry of the production of brass, bronze and other copper alloy objects in medieval Europe (12th-16th centuries) Sous la direction de Nicolas Thomas & Pete Dandridge Tiré à part / Off-print Gardner C., Martinón-Torres M., Topić N., Peković Ž., 2018, « Analysis of archaeometallurgical finds from a late to postmedieval foundry in Dubrovnik, Croatia », in Thomas N., Dandridge P. (éd.), Cuivre, bronzes et laitons médiévaux : Histoire, archéologie et archéométrie des productions en laiton, bronze et autres alliages à base de cuivre dans l’Europe médiévale (12e-16e siècles). Medieval copper, bronze and brass: History, archaeology and archaeometry of the production of brass, bronze and other copper alloy objects in medieval Europe (12th-16th centuries), [Actes du colloque de Dinant et Namur, 15- 17 mai 2014. Proceedings of the symposium of Dinant and Namur, 15-17 May 2014], Namur, Agence wallonne du Patrimoine, p. 309-325. (Études et documents, Archéologie ; 39). Études et Documents Archéologie Agence wallonne du Patrimoine 39 Études et Documents Archéologie 39 La série ARCHÉOLOGIE de la collection ÉTUDES ET DOCUMENTS est une publication de l'AWaP Service public de Wallonie Direction générale opérationnelle de l'aménagement du territoire, du logement, du patrimoine et de l'énergie Agence wallonne du Patrimoine (AWaP) Rue des Brigades d'Irlande, 1 B-5100 Jambes IMPRESSION, DIFFUSION ET VENTE ÉDITEUR RESPONSABLE Service publications Jean Plumier, Résidence du Grand Cortil Inspecteur général-expert Place des Célestines, 21 (derrière l'hôtel Ibis) B-5000 Namur COORDINATION ÉDITORIALE Tél.
    [Show full text]
  • 26. Dresdner Brückenbausymposium
    FAKULTÄT BAUINGENIEURWESEN Institut für Massivbau www.dbbs.tu-dresden.de 13 Herzlich willkommen zum 26. Dresdner Brückenbausymposium 15 Außer Konkurrenz 23 Realisierungswettbewerb zum Ersatzneubau der Eisenbahn überführungen über die Oder und die Odervorflut bei Küstrin-Kietz 37 Zur Gestaltung von Brücken der Bundesfernstraßen – Die Suche nach der besten Lösung 47 Search for the true structural solution 67 Der Ersatzneubau der Lahntalbrücke Limburg 85 Wirtschaftliche Selbstkletterschalung für Europas aktuell größtes Brückenbauprojekt „Hochmoselbrücke 103 Verstärkung von Brücken mit externer Vorspannung – Einsatzbereiche und Randbedingungen 119 Ulrich Finsterwalder (1897–1988) – Doyen des Brückenbaus 153 Gestaltungskonzept für die Brückenbauwerke im Zuge der BAB A 3 zwischen AK Biebelried und AK Fürth/Erlangen 165 Reparatur der Autobahnbrücke über die Süderelbbrücke nach schwerem Schiffsanprall – Nachrechnung, Planung, Ausführung, Analyse 177 Langzeitverhalten von geokunststoffbewehrten Stützkonstruktionen – zukünftig eine Standardbauweise auch für Brückenwiderlager? 193 Die Herausforderungen und Möglichkeiten einer umfassenden Grundlagenanalyse am Beispiel des Hovenringes in Eindhoven (NL) 211 Die Butterfly-Bridge in Kopenhagen 221 Militärischer Einfluss auf Konstruktion und Architektur von Eisenbahnbrücken im Deutschen Reich 235 Verstärken mit Carbonbeton im Brückenbau 249 Zur Anwendung von Szenario-Spektren 26. DRESDNER beim seismischen Nachweis von Brücken 263 Brücken bauen mit Eisenbeton – Gedanken zum denkmalgerechten Umgang BRÜCKENBAUSYMPOSIUM
    [Show full text]
  • Understanding Alloy Design Principles and Cast Metal Technology in Hot Molds for Medieval Bengal
    Indian Journal of History of Science, 45.1 (2010) 101-140 UNDERSTANDING ALLOY DESIGN PRINCIPLES AND CAST METAL TECHNOLOGY IN HOT MOLDS FOR MEDIEVAL BENGAL BARNALI MANDAL*, PRANAB K. CHATTOPADHYAY**, DIPTEN MISRA+ AND PRASANTA K. DATTA++ (Received 9 September 2009; revised 17 November 2009) Two beautiful bronze images of medieval period unearthed in South Bengal have been investigated. After laser cleaning, material characterization was undertaken to reconstruct the technology as well as the knowledge base of metal workers. The bronze items were found to be cast product whose chemistry belongs to copper – zinc – lead system with small addition of tin. The use of copper-zinc alloy in place of copper-tin with addition of lead becomes quite significant in this respect and points towards developing a working knowledge for copper-alloy design. The analysis of microstructures signifies towards a casting technology, where, hot molds were used. For confirmation of the molds, some tribal metal casting operations were also investigated. The technology was then reconstructed in the laboratory and some casting as the facts were produced. Microstructures of all three types look almost similar leading to the conclusion that coppersmiths used hot clay molds for bronze production. Key words: Alloy-design, Bronze casting, Hot molds, Laser cleaning INTRODUCTION East Indian subcontinent has got a long history of using different metals from ancient time and a number of archaeological sites have been * Research Scholar: Department of Metallurgical & Material Engineering, Jadavpur University, Kolkata- 700 032. India, [email protected]. ** Centre for Archaeological Studies & Training, Eastern India, 4 Camac Street, Kolkata- 700 016.
    [Show full text]
  • The Norman Blacksmith Shop
    The Norman Blacksmith Shop Special Thanks to Bill Bowie: Museum of Ventura County-Agriculture Museum, Leonard Cruz, Eduardo Escobedo, Rob Frost: Ventura County Cattlemen’s Association, Susan Gardner: Camarillo Public Library, Tom and Theresa Marvel, Pleasant Valley Historical Society, Renee Tallent: Museum of Ventura County Alec and Janet Nuckols Kinch, Tom Nuckols and John Nuckols 2 The Norman Blacksmith Shop by Beth Miller The ringing of the hammer hitting the anvil could be heard down the road. It had a rhythm and mood all of its own. The music of the hammer and anvil worked together to create, shape and repair. In the early twentieth century, farmers needed tools made and repaired as well as wagon wheels fixed. Their horses and mules supplied the power to the plowshares cutting into the soil. The glowing warmth of the coals in the forge, especially in winter, gave a welcoming comfort as the customers arrived to have their equipment repaired, horses shod, and sit awhile with others to hear the latest local news. Norman and Son Blacksmithing was essential to the success of ranches, farms and businesses in and around Camarillo. Established in Camarillo in 1910, Isaac “Ike” Norman did a variety of important work including repairing horse-drawn farm machinery, wagons, carriages and sleighs as well as making and repairing household implements. It’s not surprising that his shop was located near the railroad tracks. The raw materials that were needed were ordered in lengths of heavy iron and steel and delivered to town by the railroad. The coal, burning in the forge, was the fuel that made the blacksmith’s work possible.
    [Show full text]
  • The Silversmith\'S Handbook
    "-//W3C//DTD XHTML 1.0 Strict//EN" 1 "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"> <head> <meta http-equiv="Content-Type" content="text/html;charset=iso-8859-1" /> <meta http-equiv="Content-Style-Type" content="text/css" /> <title> The Silversmith's Handbook, by George E. Gee, a Project Gutenberg eBook. </title> <style type="text/css"> body {margin-left: 10%; margin-right: 10%;} p {margin-top: .75em; text-align: justify; margin-bottom: .75em; text-indent: 1.5em;} hr {width: 33%; margin-top: 1em; margin-bottom: 1em; margin-left: auto; margin-right: auto; clear: both;} "-//W3C//DTD XHTML 1.0 Strict//EN" 2 hr.tb {width: 45%;} hr.chap {width: 65%; margin-top: 2em;} hr.full {width: 95%; margin-top: 2em;} table {margin-left: auto; margin-right: auto; text-align: center; border-collapse: collapse;} .pagenum {position: absolute; right: 3.5%; font-size: small; text-align: right; color: #808080;} /* page numbers */ .bdb {border-bottom: solid #000 1px;} .bdb2 {border-bottom: solid #000 2px;} .bdl {border-left: solid #000 1px;} .bdt {border-top: solid #000 1px;} .bdt2 {border-top: solid #000 2px;} .bdr {border-right: solid #000 1px;} .bbox {border: solid #000 1px;} .center {text-align: center; margin:0; text-indent: 0;} .smcap {font-variant: small-caps;} .tdl {text-align: left;} .tdl2 {text-align: left; padding-left:2em;} .tdr {text-align: right;} .tdr2 {text-align: right; padding-right: 2em;} .p0 {text-indent: 0;} .pmb4 {margin-bottom: 4em;}
    [Show full text]
  • THE FORGE FIRE (765) 789-8316 [email protected]
    December 2012 BOARD OF DIRECTORS Gary Phillips ‘14 President: 14800 N SR 167 N Albany, IN 47320 THE FORGE FIRE (765) 789-8316 [email protected] Bill Conyers ‘15 Vice President: The Newsletter of the Indiana Blacksmithing Association, Inc. 50964 Lilac Rd, South Bend, IN (574) 277-8729 An Affiliate Of The Artists-Blacksmiths' Association of North [email protected] America, Inc. Ken Dettmer ‘15 IBA is a Not For Profit Indiana Corporation recognized by the IRS under section 501(c)(3) 15721 S 250W Columbus, IN 47201 (812) 342-4084 10:00 AM is the regular meeting time for IBA Hammer-Ins Dominick Andrisani ‘16 with beginner training available at 9:00 AM. 3608 Capilano Drive PLEASE MAKE SURE TO ASK FOR HELP ! West Lafayette, IN 47906-8869 PH #(765)463-4975 [email protected] If you would like an IBA membership application form, Secondary Story Headline please contact Farrel Wells, Membership Secretary Ted Stout ‘16 8525 W 700 S (765) 768-6235 . West Point, IN 47992-9258 BULK LOTS ARE AVAILABLE TO DEMONSTRATORS, PH# (765) 572-2467 SHOPS, SHOWS AND OTHERS WILLING TO MAKE THEM AVAILABLE. [email protected] WE APPRECIATE YOUR HELP. James Johnston ‘13 The Indiana Blacksmithing Association, Inc., its staff, officers, directors, members, and hosts and the Forge Education Chairman: 806 Twyckingham Lane Fire, specifically disclaim any responsibility or liability for damages or injuries as a result of any construc- Kokomo, IN 46901-1885 tion, design, use, manufacture or other activity undertaken as a result of the use, or application of, informa- (765) 452-8165 tion contained in any articles in the Forge Fire.
    [Show full text]
  • SF Program 2003.Qxd
    Frei & Borel Welcomes SNAG Conference to San Francisco W e invite you to visit either of our two stores while you are in Our branch town. The main office is located office is located at 760 Market in Oakland just Street inside the across the bay near the Phelan building Oakland next door to museum. Revere Call Academy room 510.832.0355 900. or 415.421.8133 800.772.3456 126 Second Street - Oakland, CA 94607 - Phone 510.832.0355 Notes V elvet da V inci welcomes you to San Francisco and to the SNAG Conference. Two years ago, when we were trying to come up with a name for this year s conference, the dot-com industry was booming and Silicon Valley was the center of the economic world, and yet we in the art jewelry and metalsmithing sector were still strug - gling to find our place in this economic boom. Since then, the bubble has burst in a very big way, and if metal artists were having a hard time making a living during fabulous economic years, what are we to do during the slow times? The title Making It in Metal seems even more apropos now. W e hope you will leave this conference inspired and challenged and with a better idea of how to find your way in the field that we all find so worthwhile. Please be sure to take some time to explore the City. There is a lot to see. Make sure you carry Tom Hill s S F M E T ALS MAP when you are walking around town so you don t miss out on some of San Francisco s hidden treasures.
    [Show full text]
  • Arxiv:2004.05683V3 [Physics.App-Ph] 15 Sep 2020
    | Fabrication process and failure analysis for robust quantum dots in silicon J. P. Dodson,1 Nathan Holman,1 Brandur Thorgrimsson,1 Samuel F. Neyens,1 E. R. MacQuarrie,1 Thomas McJunkin,1 Ryan H. Foote,1 L. F. Edge,2 S. N. Coppersmith,1, 3 and M. A. Eriksson1 1Department of Physics, University of Wisconsin-Madison, Madison, WI 53706, USA 2HRL Laboratories, LLC, 3011 Malibu Canyon Road, Malibu, CA 90265, USA 3University of New South Wales, Sydney, Australia We present an improved fabrication process for overlapping aluminum gate quantum dot devices on Si/SiGe heterostructures that incorporates low-temperature inter-gate oxidation, thermal anneal- ing of gate oxide, on-chip electrostatic discharge (ESD) protection, and an optimized interconnect process for thermal budget considerations. This process reduces gate-to-gate leakage, damage from ESD, dewetting of aluminum, and formation of undesired alloys in device interconnects. Addi- tionally, cross-sectional scanning transmission electron microscopy (STEM) images elucidate gate electrode morphology in the active region as device geometry is varied. We show that overlapping aluminum gate layers homogeneously conform to the topology beneath them, independent of gate geometry, and identify critical dimensions in the gate geometry where pattern transfer becomes non-ideal, causing device failure. I. INTRODUCTION that can be well-controlled using a single gate [20, 21]. While there are benefits in choosing a linear, overlapping gate architecture, developing a high yield fabrication pro- Developing a suitable physical system for quantum cess is challenging. computation has received much attention in the past In this article, we investigate many yield limiting two decades.
    [Show full text]