Unit | Spec Limits | |||||
Item | Detection method | Min | Max | Result | ||
外觀(guān) Appearance | 內(nèi)部標(biāo)準(zhǔn) Internal standard | visual | 無(wú)雜質(zhì)、缺膠、褶皺 | Pass | ||
厚度 Ahickness | 內(nèi)部標(biāo)準(zhǔn) Internal standard | μm | 57 | 63 | 62 | |
幅寬 Breadth | 內(nèi)部標(biāo)準(zhǔn) Internal standard | mm | 249 | 251 | 250 | |
溢膠量 Excess glue amount | IPC-TM-650-2.3.17.1 | mm | 0.05 | 0.15 | 0.126 | |
剝離強(qiáng)度 Peel strength | IPC-TM-650-2.4.9 | kgf/cm | 0.7 | 1.44 | ||
焊錫耐熱性 Heat resistance of solder | IPC-TM-650-2.4.13 | 288℃/10s | 無(wú)分層、起泡 | Pass | ||
尺安安定性 Ruler stability | IPC-TM-650-2.2.4 | % | TD |
| -0.01 | -0.04 |
MD | -0.03 | -0.08 |