SMT焊接检验标准.ppt

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1、目录2.1.3通孔(PTH)(支撑孔).............82.1.4其它....................92.1.4.1过量焊锡-焊锡球/泼溅........92.1.4.2焊锡桥(桥接)...........102.1.4.3过量焊锡-焊锡网..........112.1.4.4不浸润..............112.2表面贴装组件_参IPC-A-610C12.0章节.......122.2.1粘胶固定.................122.2.2焊点...................142.2.2.1片式元件

2、-底部可焊端......142.2.2.1a侧面偏移(A)...........142.2.2.1b末端偏移(B)...........152.2.2.1c末端焊点宽度(C).........162.2.2.1d侧面焊点长度(D).........162.2.2.1e最大焊点高度(E).........172.2.2.1f最小焊点高度(F).........172.2.2.1g焊锡厚度(G)...........172.2.2.2片式元件-矩形或方形可焊端元件-1,3或5侧面可焊端....182.2.2.2a侧面偏移(A).......

3、....182.2.2.2b末端偏移(B)...........21第一部分_IPC-A-610C相关术语和定义............41.1分级......................41.2用户责任.....................41.3验收条件.....................41.3.1目标条件..................41.3.2可接受条件.................41.3.3缺陷条件..................41.3.4过程警示条件................41.3.

4、5未涉及的条件................51.4板面方向.....................51.4.1主面....................51.4.2辅面....................51.4.3焊接起始面.................51.4.4焊接终止面.................51.5电气间隙.....................51.6冷焊连接.....................51.7浸析.......................5第二部分_SMT产品焊接外观检验标准.

5、...........62.1焊接_参IPC-A-610C6.0章节............62.1.1焊接可接受性要求..............62.1.2引脚凸出..................71目录2.2.2.2c末端焊点宽度(C).........222.2.2.2d侧面焊点长度(D).........232.2.2.2e最大焊点高度(E).........242.2.2.2f最小焊点高度(F).........262.2.2.2g焊锡厚度(G)...........272.2.2.2h末端重叠(J)..........

6、.282.2.2.3圆柱体端帽形可焊端........292.2.2.3a侧面偏移(A)...........292.2.2.3b末端偏移(B)...........312.2.2.3c末端焊点宽度(C).........322.2.2.3d侧面焊点长度(D).........342.2.2.3e最大焊点高度(E).........352.2.2.3f最小焊点高度(F).........362.2.2.3g焊锡厚度(G)...........372.2.2.3h末端重叠(J)...........382.2.2.4城堡形可焊端,无引脚芯

7、片载体.............392.2.2.4a侧面偏移(A)...........392.2.2.4b末端偏移(B)...........402.2.2.4c末端焊点宽度(C).........412.2.2.4d侧面焊点长度(D).........412.2.2.4e最大焊点高度(E).........422.2.2.4f最小焊点高度(F).........422.2.2.4g焊锡厚度(G)...........432.2.2.5扁平、L形和翼形引脚.......442.2.2.5a侧面偏移(A)...........442.2

8、.2.5b趾部偏移(B)...........472.2.2.5c末端焊点宽度(C).........482.2.2.5d侧面焊点长度(D).........502.2.2.5e最大跟部焊点高度(E)...