www.ironwoodelectronics.com Spring Pin Test Report IP, Mar 2011 High Performance IC Sockets And Test Adaptors Pin Configuration www.ironwoodelectronics.com Pitch: 0.5mm PLUNGER B PLUNGER A Ø 0.35mm [0.014"] Ø 0.19mm [0.008"] 60° 0. 61mm [0.024"] 2. 87mm [0.113"] Ø 0.19mm [0.008"] 0. 64mm [0.025"] 3. 66mm [0.144"] Final 3.81mm [0.150"] Operating Position 4. 11mm [0.162"] I nitial MATERIAL: Plungers: Hardened Steel / Finish- Gold Plated Barrel: Copper Alloy / Finish- Gold Plated Spring: Stainless Steel / Finish- Gold Plated ELECTRICAL DATA: Average Resistance: 82.28mOhms Probe Self Inductance: 1.3 nH Propagation Delay: 28 picoseconds Insertion Loss: < 0.25 dB to 4.5 GHz Cross Talk: <-15 dB up to 6.5 GHz Rise Time: 26 picoseconds Capacitance: 0.53 pF IP, Mar 2011 NOTES: 1. Force: 7 grams [0.25 oz.] inital, 16 grams (0.56 oz.) at 0.150" [3.81mm] operating position (0.012" deflection). Test Method: Release rate 1.6 grams / 0.001" [0.025mm] 2. Indent Form: Either 4 way conical indent or roll crimp, 2 places. 3. Plunger "A" is a fixed plunger. www.ironwoodelectronics.com Socket Configuration www.ironwoodelectronics.com Socket in assembled state Test procedure: 1. Mount socket to the test board 2. Place daisy chained test chip inside the socket 3. Close socket lid and apply recommended pressure 4. Using multi meter read contact resistance of complete chain and record contact resistance per pin 5. Open socket, remove and reseat test chip 6. Repeat step 3 and 4 7. After 10 insertions, reflow test chip. Pitch: 0.5mm Daisy chained test chip (lead & lead free) and test board (lead) IP, Mar 2011 www.ironwoodelectronics.com Test Data (SnPb Test Chip) www.ironwoodelectronics.com Contact resistance Resistance per pin (ohms) 0.2500 0.2000 0.1500 0.1000 0.0500 0.0000 1 7 13 19 25 31 37 43 49 55 61 67 73 79 85 91 97 Cycle Average: 0.128 ohms IP, Mar 2011 Standard Deviation: 0.033 ohms www.ironwoodelectronics.com Test Data (SnAgCu Test Chip) www.ironwoodelectronics.com Contact resistance Resistance per pin (ohms) 0.2500 0.2000 0.1500 0.1000 0.0500 0.0000 1 7 13 19 25 31 37 43 49 55 61 67 73 79 85 91 97 Cycle Average: 0.089 ohms IP, Mar 2011 Standard Deviation: 0.030 ohms www.ironwoodelectronics.com