IPC-A-600H-2010 中文版 印制板的可接受性 (1).pdf - 第17页

T arget Condition - Class 1,2,3 (⽬标条件 - 1,2,3级) • Edge condition - smooth, no nicks. • 边缘 状况 - 光 滑 , 无 缺 口 。 Acceptable - Class 1,2,3 (可接受条件 - 1,2,3级) • Edges are rough but not frayed. • Nicks do not exceed 50% of the di…

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Target Condition/Acceptable - Class 1,2,3
(⽬标条件/可接受条件 - 1,2,3级)
Edges shall be clean cut and without metallic burrs.
边缘应当无金属毛刺
Nonconforming - Class 1,2,3(不符合条件 - 1,2,3级)
Defects either do not meet or exceed above criteria.
缺陷不符合或出上述要求。
2112a
2112b
2.1 BOARD EDGES(板边缘)
2.1.1.2 Metallic Burrs(⾦属⽑刺)
8 IPC-A-600H-201020104
Target Condition - Class 1,2,3(⽬标条件 - 1,2,3级)
Edge condition - smooth, no nicks.
边缘状况 -
Acceptable - Class 1,2,3(可接受条件 - 1,2,3级)
Edges are rough but not frayed.
Nicks do not exceed 50% of the distance from the printed board
edge to the nearest conductor or 2.5 mm [0.0984 in], whichever is
less.
边缘粗糙,但磨损
不大于板边缘与最近导 间距 50%或不大于
2.5mm[0.0984in]中的较小值。
Nonconforming - Class 1,2,3(不符合条件 - 1,2,3级)
Defects either do not meet or exceed above criteria.
缺陷不符合或出上述要求。
212a
212b
212c
2.1 BOARD EDGES(板边缘)
2.1.2 Nicks(缺⼝)
9IPC-A-600H-2010 20104
Target Condition - Class 1,2,3(⽬标条件 - 1,2,3级)
No haloing.
无晕圈
Acceptable - Class 1,2,3(可接受条件 - 1,2,3级)
Distance between the haloing penetration and the nearest conduc-
tive feature is not less than the minimum lateral conductor spac-
ing, or 100 µm [3,937 µin] if not specified.
晕圈的范使从板边缘与最近导电间未受影响的距离
于最向导间距,或不100µm[3,937µin]
中的较小值。
Nonconforming - Class 1,2,3(不符合条件 - 1,2,3级)
Defects either do not meet or exceed above criteria.
缺陷不符合或出上述要求。
213a
213b
213c
2.1 BOARD EDGES(板边缘)
2.1.3 Haloing(晕圈)
10 IPC-A-600H-201020104