Wire Wrap Basics
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Lecture 9: More About Wires and Wire Models
Lecture 9: More about wires and wire models Computer Systems Laboratory Stanford University [email protected] Copyright © 2007 Ron Ho, Mark Horowitz R Ho EE371 Lecture 9 Spring 2006-2007 1 Introduction • Readings • Today’s topics – Wires become more important with scaling • Smaller features mean faster devices but not faster wires. – Different kinds of wires have different scaled performance • Wires that scale in length • Wires that are fixed-length – How to deal with and estimate wire performance R Ho EE371 Lecture 9 Spring 2006-2007 2 A modern technology is mostly wires • Cross-section, Intel’s 65nm tech – 8 metal layers – Low-κr dielectrics (κr = 2.7) – Wires are 2x taller than wide • Wires are here • Transistors are here P. Bai, et al., “A 65nm logic technology featuring 35nm gate lengths, enhanced channel strain, 8 Cu interconnect…,” IEDM 2004. R Ho EE371 Lecture 9 Spring 2006-2007 3 Resistance, revisited… Resistance is resistivity/area, but… • Copper needs a diffusion barrier that reduces its cross-section – Also, barrier may not be evenly deposited • Copper can be overpolished – Can cause dishing (less thick) • Electrons can scatter off the edges – Happens more for thinner wires – Increases the base resistivity t w P. Kapur, “Technology and reliability constrained future copper interconnects: Resistance modeling,” IEEE Trans. Electron Devices, April 2002. R Ho EE371 Lecture 9 Spring 2006-2007 4 Capacitance, revisited… Model capacitance by four plates, each κ(A/d) • Plus a near-constant fringe term 0.1fF/um (fringe scales slowly) • Relative dielectrics differ, with low-κ within a layer – SiOF (3.5) or SiOC (2.5) – Reduces (dominant) sidewall cap – Wires are taller than they are wide κr2 •No low-κ between wire layers κr1 κr1 – For material strength κr2 s ILD A “sandwich” model R. -
Making a Skull Ring
Making a skull ring The first people to utilize the lost wax process is unknown as it is shrouded in history. It is well documented that it has been used for thousands of years to produce objects in metal which could not be produced any other way, due to the complexity of their design. The lost wax process allows anything that can be modeled in wax to be accurately transmuted into metal. Most fine jewelry made from gold and sterling are made using lost wax casting as it produces the highest detail The Wax Models are placed in a Plaster Mixture which then aloud to harden. Once the plaster mixture (investment) has set hard, the flasks are placed in a kiln, slowly heated to between 1000 and 1250 degrees F, and held at that temperature until all wax residues have disappeared. The place where the wax was is now a void, hence the "lost wax" designation for this process. The metal is then melted in a metal furnace and the molds are filled with liquid silver by hand while the mold is still very hot. The flask is then allowed to cool and the investment mold is broken away revealing the metal piece. This process faithfully reproduces every detail of the original wax as well as the gates and vents, which must latter be cut off with a jeweler's saw. http://davescustomskulls.com/MAKING_OF_A_SKULL_RING.html (1 of 7) [10/27/2007 8:07:45 AM] Making a skull ring After cutting away the Silver Tail-(Sprue) the Hand Finishing Process begins with the Many different Steps shown below to BRING final Details and a Mirror Finish to the RING surface. -
The Diamond Glass Companies of Montreal, Canada
The Diamond Glass Companies of Montreal, Canada Bill Lockhart, Beau Schriever, Bill Lindsey, and Carol Serr The Diamond Glass Co. and Diamond Flint Glass Co. were two in a series of Canadian companies (headquartered in Montreal) that began with the Excelsior Glass Co. in 1879 and culminated as Domglas in the 1990s. This chapter deals with the first four firms during the 1879-1913 period (see the Dominion Glass section for the later companies). None of the glass houses used manufacturer’s marks on bottles, but all of them left embossed jars that can be traced to them. The Diamond Flint Glass Co. also made – and marked – insulators. Histories Excelsior Glass Co., St. Johns and Montreal, Quebec (1879-1883) William and David Yuile acquired control of the bankrupt St. Johns Glass Co. at St. Johns, Quebec, in 1878. They renovated the factory and incorporated in April of the following year as the Excelsior Glass Co. The plant made fruit jars, a general line of bottles, and insulators. Unhappy with the location, the brothers moved the factory to Parthenais St., Montreal, in 1880. The new plant produced prescription ware, fruit jars, and some tableware. The firm reorganized in 1883 as the North American Glass Co. (King 1987:67-70). Figure 1 – Beaver Goblet (Sean George Pressed Glass & Goblets) Toulouse (1971:189) told a slightly different story. He claimed that the Yuile brothers “had taken over the Foster Bros. Glass Co. Shortly after it was founded.” They renamed the plant the St. Johns Glass Figure 2 – Beaver band Co. in 1875 and the Excelsior Glass Co. -
Invictus Catalog Lowres.Pdf
At Invictus Body Jewelry we believe that professional piercers and body modifi cation artists desire high quality, implant grade jewelry at a reasonable price. To accomplish this, we designed and developed Invictus Body Jewelry to supply implant grade titanium jewelry to professional piercers all over the world. Invictus Body Jewelry is manufactured out of Ti 6Al-4V ELI ASTM F-136 implant grade titanium. All of our jewelry is internally threaded and adheres to industry standard thread patterns. At Invictus Body Jewelry we strive to provide the professional piercer with safe, customizable, and affordable implant grade jewelry. 2 www.invictusbodyjewelry.com Invictus Body Jewelry is manufactured only using implant grade materials - Ti 6Al-4V ELI ASTM-F136. All Invictus Body Jewelry products are internally threaded for professional piercers and their clients. Invictus Body Jewelry uses industry standard thread patterns. We use M1.2 threading on our 14ga and M0.9 threading on our 16ga & 18ga. We believe in providing quality piercing products at reasonable prices to our customers. We fulfi ll orders within 24 to 48 hours from being entered into the system. Invictus Body Jewelry is only available to wholesale customers. Only piercing shops and retailers may purchase our products, not the general public. 203.803.1129 3 HORSESHOES & CURVES TIHI (Internally Threaded Titanium Horseshoes) TICI (Internally Threaded Titanium Curves) CodeSizeDiameter Ends Code Size Diameter Ends TIHI601 16g 1/4” 3mm TIHI411 14g 5/16” 4mm TIHI611 16g 5/16” 3mm TIHI421 -
9F41a1f5e9.Pdf
index windsor pearls 1 freshwater in silver 7 tahitian in silver 23 brilliance 28 lace 4 1 pearl exotics 49 vintage795 57 classics in 14k gold 65 tahitian in 14k gold 79 pearl basics studs & strands 87 modern-king by imperial Luxury statement pearl jewelry designs crafted in sterling silver. For decades freshwater pearl farmers have been attempting to develop new culturing techniques in order to produce larger and rounder pearls than ever before. We are proud to announce that our farmers have cracked the code producing affordable top quality pearls from 13-16mm! Ring: 616079/FW-WT 1 Pendant: 686453/FW18 Earrings: 626453/FW Pendant: 687230/FW18-1S Earrings: 627230/FW Ring: 617230/FW 2 Pendant: 684791/FW18 Earrings: 624791/FW Ring: 613791/FW Pendant: 689947/FW18 Earrings: 624671/FW Ring: 619947/FW 3 Necklace: 996520/18WH Earrings: 626913/FW 4 Necklace: 669913 5 Pendant: 689913/18 Earrings: 629913 Bracelet: 639913 Pendant: 686971/FW18 Earrings: 626971/FW 6 VALUE, SELECTION and STYLE Pendant: 683786/18 Earrings: 623786 Ring: 613786 7 Pendant: 684095/FW18 Earrings: 624095/FW Pendant: 685919/FW18 Earrings: 625919/FW Ring: 615919/FW 8 Pendant: 685991/FW18 Earrings: 625991/FW Pendant: 689951/FW18 Earrings: 629951/FW Ring: 619951/FW 9 Pendant: 685103/FW18 Earrings: 625103/FW18 Pendant: 685417/18 Earrings: 625417 Ring: 615417 10 Necklace: 664010 Bracelet: 633149 Necklace: 663760 Earrings: 623760 Bracelet: 633760 11 A. Pendant: 688304/FW18 B. Earrings: 628304/FW C. Pendant: 688340/FW18 D. Earrings: 628340/FW C A B D 12 E. Pendant: 683699/FW18 F. Earrings: 623699/FW G. Pendant: 687330/FW18 H. -
Chapter 9 Chip Bonding At
9 CHIP BONDING AT THE FIRST LEVEL The I/O interface to the die primarily interconnects electrical power, ground and signals. It must provide for low impedance for the power distribution system, so as to keep switching noise within specification, and controlled impedance for the signal leads to allow adequate signal integrity. In addition it must accommodate all the I/O and power and ground leads required, and at the same time, minimize the cost for high volume assembly. The secondary role of chip bonding is to be mechanically robust, not interfere with thermal man- agement and be the geometrical transformer from the die features to the next level of packaging features. There are many options for the next level of interconnect, including: ¥ leadframe in a single chip package ¥ ceramic substrate in a single chip package ¥ laminate substrate in a single chip package ¥ ceramic substrate in a multichip module ¥ laminate substrate in a multichip module ¥ glass substrate, such as an LCD (liquid crystal display) ¥ laminate substrate, such as a circuit board ¥ ceramic substrate, such as a circuit board For all of these first level interfaces, the chip bonding options are the same. Illustrated in Figure 9-1, they are: ¥ wirebond ¥ TAB (tape automated bonding) ¥ flip chip; either with a solder interface, a polymer adhesive or a welded joint Because of the parallel efforts in widely separated applications involving similar, but slightly dif- ferent variations of chip attach techniques, seemingly confusing names have historically evolved to describe some of the attach technologies. COG (chip on glass) refers to assembly of bare die onto LCD panels. -
Brass Wire Safety Data Sheet S
Brass Wire Safety Data Sheet s SECTION 1: Identification of the substance/mixture and of the company/undertaking 1.1. Product identifier Product name : Brass Wire 1.2. Relevant identified uses of the substance or mixture and uses advised against Use of the substance/mixture : Manufacturing 1.3. Details of the supplier of the safety data sheet Weiler Corporation 1 Weiler Drive Cresco, PA 18326 1.4. Emergency telephone number Emergency number : 570-595-7495 SECTION 2: Hazards identification 2.1. Classification of the substance or mixture This product as manufactured is defined as an article per 29 CFR 1910.1200. No exposure hazards are anticipated during normal product handling conditions. In most cases, the material(s) removed from the workpiece may present a greater hazard than material released by the product. Based upon the materials that are contained within the working portion of this product it is possible that some dust particles from this product may be generated. The following safety data is presented for potential exposure hazards as associated with the dust particles that are related to this product. Classification (GHS-US) Not classified 2.2. Label elements GHS-US labeling This product as manufactured is defined as an article, therefore no labeling is required for the product as manufactured. 2.3. Other hazards No additional information available 2.4. Unknown acute toxicity (GHS US) Not applicable SECTION 3: Composition/information on ingredients 3.1. Substance Not applicable 3.2. Mixture Name Product identifier % Classification (GHS-US) Copper (CAS No) 7440-50-8 69 - 70 Not classified Zinc (CAS No) 7440-66-6 29 - 31 Not classified Lead (CAS No) 7439-92-1 <= 0.07 Carc. -
Native American | Navajo | Southwestern | Turquoise | Handmade
09/24/21 06:20:04 NATIVE AMERICAN | NAVAJO | SOUTHWESTERN | TURQUOISE | HANDMADE Auction Opens: Thu, Apr 1 4:29pm PT Auction Closes: Thu, Apr 8 10:30am PT Lot Title Lot Title 0001 Native American Navajo Handmade Sterling 0017 Native American Handmade Sterling Silve Silver Turquoise Bracelet by Rosco Scoott. Navajo Turquoise Ring. 0002 Native American Handmade Sterling Silver 0018 Native American Navajo Handmade Sterling Navajo Feathers Set By V. Silver Turquoise Ring by Mike Thomas. 0003 Native American Navajo Handmade Sterling 0019 Native American Handmade Sterling Silver Silver Turquoise Post Dangle Earrings by Zuni Earring's By Ray & Patty Edaakie. Enriquez. 0020 Native American Handmade Sterling Silver 0004 Native American Navajo Handmade Sterling navajo Turquoiose Ring By Amy Locaspino. Silver Turquoise Dangle Earrings by Michael 0021 Native American Handmade Sterling Silver Bitsue. Navajo Turquoise Bracelet By Max Calladito. 0005 Native American Navajo Handmade Sterling 0022 Sterling Silver Turquoise and Coral Indian Silver Turquoise Ring by Nathaniel Curley. Face Ring. 0006 Native American Navajo Handmade Sterling 0023 Native American Navajo Handmade Sterling Silver Lapis and Opal Inlay Bracelet by Jerome Silver Turquoise Bracelet by Marie Thomas. Yazzie. 0024 Native American Navajo Handmade Sterling 0007 Native American Navajo Handmade Sterling Silver Multi-Color Inlay Ring by Ray Jack. Silver Turquoise Dangle Earrings. 0025 Native American Navajo Handmade Sterling 0008 Native American Navajo Handmade Sterling Silver Turquoise Post Dangle Earrings. Silver Turquoise Bracelet by Betty House. 0026 Native American Handmade Sterling Silver 0009 Native American Navajo Handmade Sterling Navajo Inlay synthetic Opal Earrings By Bruce Silver Turquoise Ring by Shirley Largo. Johnson. -
Maintenance Guide: Crown & Crown II
1 2 21 22 23 3A 20 4 19 16A COVER STOP COUPLING 7B 16B BODY CONTROL 17 HANDLE STOP 18 COUPLING SUPPLY 5B TAILPIECE HANDLE ASSEMBLY FLANGE 15 FLUSH CONNECTION OUTLET (VACUUM BREAKER) 3B COUPLING 14 7A Item No. 4 SPUD COUPLING 10B Piston Kit SPUD FLANGE 6B CROWN II® 8 VALVE SHOWN A LEGEND 9B 5A CP Chrome Plate 12 PVDBN Brushed Nickel B PVDGP Gold Plate PVDPB Polished Brass C SF Satin Chrome 11 D 6A PARTS LIST 8 ITEM CODE NO. PART NO. DESCRIPTION E 1. 0332006 CR-116 CP Cover 9A 10A 2. 0332030 CR-133 Cover O-ring F 3. 0332045 CR-132-A CP Handle and Cover Trim Ring Kit (Includes items 3A & 3B) (CROWN II ONLY) G 0332046 CR-132-A PVDPB Handle and Cover Trim Ring Kit (Includes items 3A & 3B) (CROWN II ONLY) 0332047 CR-132-A PVDGP Handle and Cover Trim Ring Kit 13 I (Includes items 3A & 3B) (CROWN II ONLY) 0332048 CR-132-A PVDBN Handle and Cover Trim Ring Kit H (Includes items 3A & 3B) (CROWN II ONLY) 0332049 CR-132-A SF Handle and Cover Trim Ring Kit J (Includes items 3A & 3B) (CROWN II ONLY) 1 3A. 0332035 CR-134 Cover Trim Ring (CROWN ONLY) 15. 0308801 H-551-A Adjustable Tailpiece (2 /16” /52 mm long) 0332009 CR-120 PVDPB Cover Trim Ring (CROWN II ONLY) 16A. 5308696 H-553 O-ring — 24 per pkg. 16B. 5308381 H-552 Locking Ring — 12 per pkg. 0332032 CR-120 PVDGP Cover Trim Ring (CROWN II ONLY) ® 0332033 CR-120 PVDBN Cover Trim Ring (CROWN II ONLY) 17. -
Technical Information Handbook Wire and Cable
Technical Information Handbook Wire and Cable Fifth Edition Copyright © 2018 Trademarks and Reference Information The following registered trademarks appear in this handbook: Information in this handbook has been drawn from many Alumel® is a registered trademark of Concept Alloys, LLC publications of the leading wire and cable companies in the industry and authoritative sources in their latest available Chromel® is a registered trademark of Concept Alloys, LLC editions. Some of these include: Copperweld® is a registered trademark of Copperweld Steel Company CSA® is a registered trademark of the Canadian Standards Association • American Society for Testing and Materials (ASTM) CCW® is a registered trademark of General Cable Corporation • Canadian Standards Association (CSA) ® DataTwist is a registered trademark of Belden • Institute of Electrical and Electronics Engineers (IEEE) Duofoil® is a registered trademark of Belden Flamarrest® is a registered trademark of Belden • Insulated Cable Engineers Association (ICEA) Halar® is a registered trademark of Solvay Solexis • International Electrotechnical Commission (IEC) Hypalon® is a registered trademark of E. I. DuPont de Nemours & Company • National Electrical Manufacturers Association (NEMA) Hypot® is a registered trademark of Associated Research, Inc. • National Fire Protection Association (NFPA) IBM® is a registered trademark of International Business Machines Corporation Kapton® is a registered trademark of E. I. DuPont de Nemours & Company • Naval Ship Engineering Center (NAVSEC) Kevlar® is a registered trademark of E. I. DuPont de Nemours & Company • Telecommunications Industry Association (TIA) ® K FIBER is a registered trademark of General Cable Corporation • Underwriters Laboratories (UL). Kynar® is a registered trademark of Arkema, Inc. Loc-Trac® is a registered trademark of Alpha Wire Note: National Electrical Code (NEC) is a registered trademark of the National Fire Protection Association, Quincy, MA. -
Tiara Pair of Earrings in Chinoiserie Style
1 1. Italy or France Tiara Gold and coral, about 1817 Purchased with funds given by Rita Barbour Kern, 1996.27 French Neoclassicism revived the fashion for wearing a tiara, a head ornament based on an ancient Greek diadem. Tiaras of varying degrees of intrinsic value were worn by every woman from the middle classes to royalty. Coral, which was believed to posses protective powers, was often used in jewelry for children and young adults. A portrait painted by Luigi Bernero in 1817 of Maria Teresa of Savoy (1803– 1879) shows the 14-year-old Italian princess wearing a hair ornament almost exactly like this tiara. Most coral in Europe came from the sea around Naples and nearby Torre del Greco. In the 19th century coral jewelry became a fashionable souvenir. This was partly because people could travel more once the Napoleonic wars had ended in 1815, but also due to the growing popularity of Luigi Bernero (Italy, 1775–1848), Maria Teresa di Savoia. Oil on canvas, naturalistic jewelry in the 1850s. about 1817. Palazzo Reale, Turin, Italy 2. and pagoda-shaped elements of these earrings reflect the England period’s romantic taste for the Far East, known as chinoiserie Pair of Earrings in (sheen-WAH-zer-ee). Chinoiserie Style Pierced earrings were a sign of maturity. The first pair of earrings was usually given to a young girl in England at Silver, gold, diamonds, pearls and rubies, age 16, when simple ‘top-and-drop’ pearl earrings were considered to be more appropriate for a young, unmarried about 1820 girl. -
1.Catalog of Tungsten Wire
Black Tungsten Wire Black tungsten wire is tungsten wire with graphite coated. The important applications of black tungsten wire are for the production of coiled incandescent lamp filaments, cathode and support structures for power tubes, heating elements for high temperature furnaces and evaporation sources in metalizing processes. Thicker wire sizes, straightened, finish-ground and cut into rod pieces are widely used for glass-to-metal seal lead parts in the lighting and electronic industries. Cleaned Tungsten Wire Cleaned Tungsten Wireis raised foreign elements and graphite from black tungsten wire. Cleaned Tungsten Wire is the surface of electrolytic polished tungsten wire, and it shall be smooth, clean, gray silver with metal luster. The tungsten wire features excellent formability, long life and super lighting efficiency. Cleaned tungsten wire is mainly applied for making various electron tubes, H series auto lamp, halogen lamp and other special lamp. Tungsten Rhenium Wire Tungsten rhenium wireis used for heating elements in high temperature furnaces, thermocouples and in electronics. Its advantage is its ability to maintain greater ductility compared to tungsten after exposure to extremely high temperatures. Tungsten wire has fiber structure, when the temperature reaches 1500-1600 ℃, the tungsten filament would turn, and cause high-temperature sag. To improve the quality of tungsten wire, it is always mixed some additives during sintering procession, such as Na2O, K2O, SiO2, ThO to enhance the capacity of high-temperature creep resistance and high temperature anti-sag of tungsten wire. In order to improve the tenacity of tungsten wire and prevent the deformation under high temperature, it usually added some oxides, such as silica, alumina, and potassium and so on.