IPC-A-600H-2010 中文版 印制板的可接受性 (1).pdf - 第51页

T arget Condition - Class 1,2,3 (⽬标条件 - 1,2,3级) • Smooth edge condition. • 边缘 光 滑 。 Acceptable - Class 1,2,3 (可接受条件 - 1,2,3级) • Edge condition - smooth, no burrs, no rough edges, no lifted plat- ing on printed contacts, …

100%1 / 180
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。
2711c
2711d
2711e
2.7 PRINTED CONTACTS(印制接触⽚)
2.7.1.1 Surface Plating Wire Bond Pads (cont.)(表⾯镀层 ⾦属线键合盘(续)
42 IPC-A-600H-201020104
Target Condition - Class 1,2,3(⽬标条件 - 1,2,3级)
Smooth edge condition.
边缘
Acceptable - Class 1,2,3(可接受条件 - 1,2,3级)
Edge condition - smooth, no burrs, no rough edges, no lifted plat-
ing on printed contacts, no separation (delamination) of printed
contacts from the base material, and no loose fibers on the bev-
eled edge. Exposed copper at end of printed contact is expected
and permissible.
边缘状况 - 平滑毛刺无粗糙边缘、印制接片的
不起,印制接片与基材(分,接片的
斜边无松散纤维。印制接允许露铜
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。
272a
272b
272c
2.7 PRINTED CONTACTS(印制接触⽚)
2.7.2 Burrs on Edge-Board Contacts(印制接触⽚ 边缘⽑刺)
43IPC-A-600H-2010 20104
Target/Acceptable - Class 1,2,3(⽬标/可接受条件 - 1,2,3级)
Good plating adhesion as evidenced by tape test. No plating
removed. If overhanging metal breaks off and adheres to the tape,
it is evident of overhang or slivers, but not of plating adhesion
failure. Figure 273b provides an example of overhanging metal.
胶带测试证明镀层具有附着力,没有镀层。如
果镀层突沿胶带上,则说明有镀层突沿
,并非镀层附着力。图273b给出了沿金的实例示
意图。
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。
Note 1: The adhesion of the plating shall be tested in accordance with IPC-TM-650, Method 2.4.1, using a strip of pressure sensitive tape
applied to the surface and removed by manual force applied perpendicular to the circuit pattern.
Note 2: Plating that has adhered to the tape.
注1:镀层附着力应当IPC-TM-650测试方法2.4.1进行测试,用一条胶带压贴镀层表面上,后沿路图
离胶带
注2:镀层胶带上。
273a
273c
273b
2.7 PRINTED CONTACTS(印制接触⽚)
2.7.3 Adhesion of Overplate(外镀层附着⼒)
44 IPC-A-600H-201020104