GULF SEMICONDUCTOR LIMITED Soldering Heat Resistance Test Standard 1. IEC Standard (IEC 60068-2-58) Soldering Heat Resistance Standard Lead Free Solder Alloy Melting Point Flow Reflow 250℃ for 25 sec SnAgCu 217℃ 255℃ for 10 sec SnCu 227℃ 260℃ for 10 sec 2. Gulf Solder Dip Standard Gulf standard of solder Dip is 265+/-5℃ for 10s 3. Profile for Flow Soldering & Reflow Soldering a) Flow Soldering Profile Temp.(℃) Below 4 sec 110-140℃ Preheat time =60~100s Time (Sec) Page 1 of 6 GULF SEMICONDUCTOR LIMITED b) Reflow Soldering Profile Melting Point of Solder (SnAgCu) 217℃ Ramp-up Rate to 217℃ (Melting Point of Solder) 3℃/sec Time at Temp.>217℃ (Melting Point of Solder) 60~150 Sec Peak Temperature 255±5℃ Time within 5℃ below Peak Temp. 20~40 Sec Cooling Rate 6℃/sec (max) Time from 25℃ to Peak Temp. 8 min (max) Page 2 of 6 GULF SEMICONDUCTOR LIMITED Soldering Heat Resistance Test Report A. Test Item: Solderability Test a) Test Condition 1) Temperature: 245 +/-5 degree C 2) Time: 5 sec. b) Composition of Solder Material: Sn-3.0Ag-0.5Cu c) Sample Size: 22pcs d) Judgement Criteria: 95% coverage minimum e) Test Result: No. Wetting Area > 95 % No. Wetting Area > 95 % 1 OK 12 OK 2 OK 13 OK 3 OK 14 OK 4 OK 15 OK 5 OK 16 OK 6 OK 17 OK 7 OK 18 OK 8 OK 19 OK 9 OK 20 OK 10 OK 21 OK 11 OK 22 OK B. Test Item: Solder Dip Test a) Test Condition 1) Temperature: 265 +/-5 degree C 2) Time: 10 sec. b) Composition of Solder Material: Sn-3.0Ag-0.5Cu c) Sample Size: 50pcs d) Judgement Criteria: 1) Electrical performance must be satisfactory with the specification. 2) There must be no conspicuous change in appearance Page 3 of 6 GULF SEMICONDUCTOR LIMITED e) Test Data (Spec: VF<1.7V, IR<10.0uA, TRR<75nS) Before After Difference (After-Before) VF(V) IR(uA) TRR(nS) VF(V) IR(uA) TRR(nS) VF(V) IR(uA) TRR(nS) 1 1.351 0.01 56 1.346 0.01 57 -0.005 0.000 1.00 2 1.324 0.01 61 1.317 0.01 62 -0.007 0.000 1.00 3 1.337 0.01 59 1.329 0.01 59 -0.008 0.000 0.00 4 1.317 0.01 59 1.311 0.01 59 -0.006 0.000 0.00 5 1.315 0.01 63 1.308 0.01 63 -0.007 0.000 0.00 6 1.307 0.01 62 1.303 0.01 63 -0.004 0.000 1.00 7 1.340 0.01 55 1.332 0.01 55 -0.008 0.000 0.00 8 1.311 0.01 60 1.308 0.01 60 -0.003 0.000 0.00 9 1.324 0.01 60 1.316 0.01 60 -0.008 0.000 0.00 10 1.270 0.01 61 1.264 0.01 62 -0.006 0.000 1.00 11 1.321 0.01 59 1.310 0.01 60 -0.011 0.000 1.00 12 1.302 0.01 63 1.292 0.01 64 -0.010 0.000 1.00 13 1.356 0.01 57 1.348 0.01 58 -0.008 0.000 1.00 14 1.347 0.01 57 1.334 0.01 58 -0.013 0.000 1.00 15 1.362 0.01 54 1.352 0.01 55 -0.010 0.000 1.00 16 1.266 0.01 67 1.257 0.01 69 -0.009 0.000 2.00 17 1.329 0.01 58 1.318 0.01 59 -0.011 0.000 1.00 18 1.359 0.01 60 1.347 0.01 61 -0.012 0.000 1.00 19 1.330 0.01 58 1.320 0.01 59 -0.010 0.000 1.00 20 1.336 0.01 59 1.331 0.01 60 -0.005 0.000 1.00 21 1.310 0.01 62 1.311 0.01 62 0.001 0.000 0.00 22 1.319 0.01 59 1.319 0.01 59 0.000 0.000 0.00 23 1.333 0.01 60 1.333 0.01 60 0.000 0.000 0.00 24 1.306 0.01 47 1.308 0.01 48 0.002 0.000 1.00 25 1.331 0.01 58 1.331 0.01 58 0.000 0.000 0.00 26 1.325 0.01 50 1.325 0.01 50 0.000 0.000 0.00 27 1.362 0.01 57 1.362 0.01 58 0.000 0.000 1.00 28 1.317 0.01 59 1.318 0.01 59 0.001 0.000 0.00 29 1.299 0.01 58 1.299 0.01 58 0.000 0.000 0.00 30 1.250 0.01 67 1.250 0.01 67 0.000 0.000 0.00 31 1.327 0.01 57 1.325 0.01 57 -0.002 0.000 0.00 32 1.296 0.01 58 1.296 0.01 58 0.000 0.000 0.00 33 1.344 0.01 58 1.345 0.01 58 0.001 0.000 0.00 34 1.315 0.01 61 1.316 0.01 60 0.001 0.000 -1.00 35 1.354 0.01 57 1.355 0.01 57 0.001 0.000 0.00 36 1.333 0.01 61 1.334 0.01 61 0.001 0.000 0.00 37 1.352 0.01 54 1.353 0.01 54 0.001 0.000 0.00 38 1.313 0.01 59 1.313 0.01 59 0.000 0.000 0.00 39 1.347 0.01 59 1.348 0.01 59 0.001 0.000 0.00 40 1.322 0.01 52 1.323 0.01 52 0.001 0.000 0.00 41 1.341 0.01 47 1.342 0.01 47 0.001 0.000 0.00 42 1.325 0.01 55 1.326 0.01 55 0.001 0.000 0.00 43 1.327 0.01 62 1.328 0.01 62 0.001 0.000 0.00 44 1.326 0.01 56 1.326 0.01 56 0.000 0.000 0.00 45 1.310 0.01 57 1.310 0.01 57 0.000 0.000 0.00 46 1.297 0.01 60 1.297 0.01 60 0.000 0.000 0.00 47 1.323 0.01 58 1.323 0.01 58 0.000 0.000 0.00 48 1.348 0.01 46 1.348 0.01 45 0.000 0.000 -1.00 49 1.311 0.01 61 1.311 0.01 61 0.000 0.000 0.00 50 1.286 0.01 49 1.287 0.01 49 0.001 0.000 0.00 f) Result: there are not any defect for appearance and electrical to be found. No. Page 4 of 6 GULF SEMICONDUCTOR LIMITED C. Test Item: Solder Dip Test a) Test Condition 1) Temperature: 350 +/-5degree C 2) Time: 3 sec. b) Composition of Solder Material: Sn-3.0Ag-0.5Cu c) Sample Size: 50pcs d) Judgement Criteria: e) 1) Electrical performance must be satisfactory with the specification. 2) There must be no conspicuous change in appearance Test Data (Spec: VF<1.7V, IR<10.0uA, TRR<75nS) Page 5 of 6 GULF SEMICONDUCTOR LIMITED No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 f) Before VF(V) 1.268 1.332 1.228 1.282 1.281 1.259 1.253 1.324 1.273 1.317 1.254 1.221 1.259 1.27 1.319 1.277 1.207 1.298 1.27 1.261 1.282 1.243 1.34 1.29 1.236 1.316 1.263 1.279 1.244 1.259 1.289 1.302 1.258 1.296 1.318 1.296 1.321 1.298 1.283 1.281 1.264 1.257 1.288 1.264 1.272 1.235 1.387 1.278 1.261 1.365 IR(uA) 0.01 0.01 0.01 0.01 0.01 0.02 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.03 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.04 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.25 0.03 0.01 0.01 0.04 After TRR(nS) 43 42 50 43 48 46 45 43 44 43 47 49 46 45 42 45 49 43 45 46 41 47 42 43 47 41 43 44 45 45 43 41 44 43 45 45 43 44 45 43 44 46 43 46 45 44 39 42 46 44 VF(V) 1.265 1.332 1.228 1.282 1.281 1.258 1.253 1.324 1.274 1.319 1.255 1.221 1.26 1.27 1.32 1.278 1.208 1.298 1.27 1.262 1.282 1.243 1.34 1.289 1.236 1.317 1.264 1.28 1.246 1.261 1.289 1.303 1.259 1.296 1.317 1.298 1.322 1.299 1.284 1.282 1.265 1.258 1.289 1.265 1.272 1.235 1.389 1.279 1.261 1.367 IR(uA) 0.01 0.01 0.01 0.01 0.01 0.03 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.03 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.05 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.25 0.03 0.01 0.01 0.04 Difference (After-Before) TRR(nS) 43 42 50 43 48 46 45 45 44 42 46 48 47 46 42 47 49 43 45 46 41 47 42 43 47 41 43 44 45 45 43 41 44 43 45 45 43 44 45 43 44 46 43 46 44 44 39 42 46 44 VF(V) -0.003 0.000 0.000 0.000 0.000 -0.001 0.000 0.000 0.001 0.002 0.001 0.000 0.001 0.000 0.001 0.001 0.001 0.000 0.000 0.001 0.000 0.000 0.000 -0.001 0.000 0.001 0.001 0.001 0.002 0.002 0.000 0.001 0.001 0.000 -0.001 0.002 0.001 0.001 0.001 0.001 0.001 0.001 0.001 0.001 0.000 0.000 0.002 0.001 0.000 0.002 IR(uA) 0.000 0.000 0.000 0.000 0.000 0.010 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.010 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 TRR(nS) 0.00 0.00 0.00 0.00 0.00 0.00 0.00 2.00 0.00 -1.00 -1.00 -1.00 1.00 1.00 0.00 2.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 -1.00 0.00 0.00 0.00 0.00 0.00 Result: there are not any defect for appearance and electrical to be found. Approved by: Tom Peng / 2007-9-21 Prepared by: Kaleen Gu / 2007-9-21 Page 6 of 6