IPC-4556 印制板化学镍钯浸金(ENEPIG)规范ENG - 第60页
Test Results T able A7-2 through T able A7-5 list the solderball shear test results. The test coupon shear test results popu- lations were consistent with the Sn63Pb37 alloy results having standard deviations that were 1…

Shear Test Parameters The solderball shear testing was conducted using a DAGE 5000 shear test system. A BS5KG car-
tridge was used with a 50 gram ball shear load. A shear speed of 500 um/second, a shear height of 50 µm and an over travel
distance of 100 µm were used in the test. Figure A7-2 illustrates the DAGE 5000 shear system used in the test.
Figure A7-2 DAGE 5000 Shear Test System – Macro View (left view) and Close Up of Shear Head (right view)
All of the shear test failures were of a cohesive nature and not of an adhesive mode at the solder joint or coupon pad loca-
tions. The latter adhesive failure modes are illustrated in Figure A7-3.
Figure A7-3 Solderball Shear Results – Coupon pad ripped out of board during shear test (left view) and solderball sheared through sol-
der joint during shear test (right view)
January 2013 IPC-4556
49

Test Results Table A7-2 through Table A7-5 list the solderball shear test results. The test coupon shear test results popu-
lations were consistent with the Sn63Pb37 alloy results having standard deviations that were 1-5% of the average while the
SAC305 alloy results had standard deviations that were 10-30% of the average. There are no industry specification minimum
values available for results comparison use.
Table A7-2 Sn63Pb37 Solderball Shear Test Results Coupon Set 1 (grams)
Table A7-3 Sn63Pb37 Solderball Shear Test Results Coupon Set 2 (grams)
IPC-4556 January 2013
50
Sample 6
1318.5
1345.4
1328.4
1445.2
1403.1
1351.1
1280.2
1256日
1386
1328.4
1324.5
1334.1
1296.2
1311.8
1295.3
1250.8
1257.6
1290.7
1330.9
1280.5
Average
1320.765
Std Dev
49.71872
Sample 16
1343.6|
1378.1
1399
1365
1391.9
1352.2
1370.1
1373.6
1360.8
1366.7|
1370.1
16.777697
Sample 17
1287.7|
1327.5
1336
1387.3
1368.5
1337.7
1366.8|
1376.2
1344.7]
1374.1
1350.65
29.891889
Sample 18
1306.8
1261.4
1317.3
1334.5
1351.5
1343.6
1311.1
1385.9
1272.4
1345.5
1323
37.450679
Sample 19
1316.8
1343.2
1341.8
1388.2
1359
1238
1345.6
1366.2
1334.1
1353.2
1338.61
40.204324
Sample 1
1345.6|
1374.3
1312.9
1395.4
1390.8
1375.9
1362|
1325.8
1343.7
1316.5
Average
Std Dev
1354.29
29.98223
Sample 2
1292.4
1335.2|
1363.5
1366.5
1334
1274.8
1413.7
1331.7
1293.9
1415.4
1368.1
1388.3|
1332.2|
1286.8|
13696
1295
1347
1309.2|
1298
1294.3
1335.48
42.61057
Sample 3
1262.8|
1263.9
1257.5
1386.8
1401.1
1360.5
1398.8
1332.3|
1320
1376.2|
1340.7
1371.5|
1279.1
1407.1
1366.4
1359.3
1349.1
1348.1
1279.1
1295.9
1337.81
49.26176
Sample 4
1229
1375
1401.3
1315.1
1106.7
1206.2
1248
1209.4
1217.3
1275.7
1260|
1144.2|
1148.5
1248.5
1194.4]
1200.2]
1274.4
1154
1379
1323.9
Sample 5
1307
1236.7
1405.9
1288.1
1330.3
1280.5
1391
1341.7
1396.8
1261.7
1367.9
1369.1
1381.7
1363.1
1401.3
1337.4
1404.6
1339.2
1335.6
1245.54
81.98731
1344.189
50.50496

Table A7-4 SAC305 Solderball Shear Test Results Coupon Set 1 (grams)
Table A7-5 SAC305 Solderball Shear Test Results Coupon Set 2 (grams)
January 2013 IPC-4556
51
Sample 6
2786.7
2725.4
2638.6|
2548.6
2671.8
2639.5
2530.3
2541.8
2507.2|
1611.5
2520.14|
Average
Std Dev
331.9375
Sample 16
1586.9|
2398.1
2597.7
1948.5
2306.4
1714.9
2581.2
2425.4
2225.9
2198.3333|
367.41668|
Sample 17
2208.4|
2398.2
2006.1
2583.8|
2684
1774.1
1347.6
1385.8
1869.4
1967.5
2354.4|
2604
2239.4
2057.4
25073
2059.4
2491.9
2292.8
2328.1
4709
2081.525
529.90524
Sample 18
2522.4
2450.3
2191.5
2673.8
2474.7|
2497.8
2304.3
2500.7
2221
1512.5
1425.7
2252.2455
412.21435
Sample 19
2310.1
2445.4
2413
2844.2
1687.4
2629.3
1510.9
1801.7
2756.1
1318.3
Sample 1
2532.1
1382.3
2171.64
546.8967
1461.6
2295.6
1406.8
2630|
1557.9
2790.9
1570|
2103.4|
Average
Std Dev
1973.06
557.7766
Sample 2
1412.4|
1194.4
1456.6
1425.9
2015.3
1278.7
1303.5
1556.9|
1572.6
1539.4|
1267.1
1192.4|
1355.3
1707.3
2289
1224.5
1771.9
1756.6|
1839.3|
1534.689
299.5225
Sample 3
2172.4|
2417.3|
2582.5
2599.9
2508
2798.2
1827.1
2413.5
2402.9
2369
1193.9
2570.1|
1714.9
2165.4
1887.2
1944.1
2194.2]
1426|
1627.9
1782.1
2129.83
436.0656
Sample 4
2729.9
2859.2|
2752.3|
2660.4|
2691
1842.6
2549.9
2434|
2690.9
2618.3
2124.6
2069.7|
1615.4
1709.2|
2501.6|
2334.9
1537.9
2449.1
1510|
1706.8|
Sample 5
1807
1991.8
2235.7
1982.9
2203
1653.7
2113.1
2345
2180
1899.2|
2269.385
460.6777
2041.14
213.892