www.ironwoodelectronics.com GT – Silver Button Technology Socket for Semiconductor Test

Toll Free: (800) 404-0204 U.S. Only Tel: (952) 229-8200 Fax: (952) 229-8201 email: [email protected] Application Need www.ironwoodelectronics.com

Prototype Test Applications demand high bandwidth followed by high compliance, low resistance and high temperature. • Elastomers have high bandwidth • Elastomers have low resistance • Elastomers have low compliance • Due to small thickness and mechanical coupling • Elastomers have limited temperature range • Due to the inherent process of silicone rubber IP, 10/2/2019 Solution - GT Contact www.ironwoodelectronics.com GT is a new elastomer technology that has silver particles held in a conductive column like buttons which are embedded in a non- conductive polymer substrate on a proper pitch that provides high compliance and extreme temperature ranges. GT is available for BGA, LGA, QFN, PoP and other packages from 0.3mm to 1.27mm pitch.

IP, 10/2/2019 www.ironwoodelectronics.com GT Contact - Typical Characteristics

 Contact resistance <30 mOhms  Bandwidth >75GHz @-1dB  Current 5.4A @ 20C rise  Force 20-70grams per contact  Operating temperature -55 to +160° C  Insertion/Extraction cycles >1000*  Contact length (compressed): 0.08mm  Compliance: 0.15mm

*Cycle life shown at room temperature. Reduced cycle life is expected when used at extreme temperatures, thermal cycling, improper force, cleaning and handling.

IP, 10/2/2019 GT Contact www.ironwoodelectronics.com

Bandwidth Data – 0.8mm Pitch

Insertion Loss -1dB @ 75.6GHz

IP, 10/2/2019 GT Contact www.ironwoodelectronics.com

Bandwidth Data – 0.5mm Pitch

IP, 10/2/2019 GT Contact 1mm Pitch - Current Capability www.ironwoodelectronics.com

20C rise at 5.4A IP, 10/2/2019 GT Contact 0.8mm Pitch www.ironwoodelectronics.com

-55C Temperature Data

Cres(mohm/contact) Vs Time(hrs) 22.000

20.000

18.000

16.000

14.000

12.000

10.000

8.000 Cres (mOhms/contact) Cres 6.000

4.000

2.000

0.000

Time (hrs)

IP, 10/2/2019 GT Contact www.ironwoodelectronics.com +160C Temperature Data

0.8mm Pitch

1mm Pitch

IP, 10/2/2019 GT Contact www.ironwoodelectronics.com Thermal Cycling Data Temperaure (deg C)

IP, 10/2/2019 GT Contact - Endurance Data www.ironwoodelectronics.com BGA100 (0.8mm Pitch) 60.00 Reflow 55.00 50.00 45.00 40.00 35.00 30.00 25.00 20.00 15.00 10.00 Resistance per ball (mohm) ball per Resistance 5.00 0.00 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200 210

BGA289 (1mm Pitch) 35.00

30.00 Reflow 25.00

20.00

15.00

10.00

5.00 Resistance per ball (mohm) ball per Resistance 0.00 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200 210 IP, 10/2/2019 GT Contact – FDR (BGA100, 0.8mm Pitch) www.ironwoodelectronics.com

Resistance per ball VS Resistance per ball VS force per ball displacement 140 180 130 170 120 160 110 150 100 140 90 130 120 80 110 70 100 60 90 50 80 40 70 30 60 20 50 10 40 0 30 20 0 10 20 30 40 50 60 70 80 90100110120130 (mohm) ball per Resistance 10 Resistance per ball (mohm) ball per Resistance Force per ball (g) 0 0 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.09 0.1 0.11 0.12 Force VS Displacement Displacement (mm) 0.13 0.12 0.11 0.1 BGA100 0.09 0.08 0.8mm pitch 0.07 0.06 0.05 10x10 array 0.04 0.03 Displacement (mm) Displacement 0.02 0.01 0 0 10 20 30 40 50 60 70 80 90 100110120130 Force per ball (g) IP, 10/2/2019 GT Value Proposition www.ironwoodelectronics.com

 Low cost elastomer solution for 0.3mm to 1.27mm pitch devices  Extreme temperature solutions (-55 to +160C)  High speed digital and RF applications (excellent bandwidth >75GHz)  Reliable testing due to stable contact resistance throughout life cycle  Accommodates large packages with warpages  Mixed pitch and non-conventional array solutions for densely populated devices at low cost  GT contact provides superior solution in all lab and evaluation applications due to individual button technology at affordable cost  GT sockets with wide temperature range are available in same footprint as other Ironwood sockets  Custom test socket can be produced using GT contact in less than 3 weeks when standard socket is not available  GT sockets are robust and can be used in demonstration products for multiple handling process without contact degradation

IP, 10/2/2019