IPC-A-600H-2010 中文版 印制板的可接受性 (1).pdf - 第142页

The covercoat coverage shall have the same requirements as the solder mask coatings in the rigid printed board section of this document. This section covers the acceptability requirements for coverlay coverage including …

100%1 / 180
Imperfections such as wrinkles, creases, and nonlamination are acceptable provided they do not exceed the limits for foreign inclusions in
2.3.4 and the limits below.
皱褶非层之类的瑕疵,未超过下述制及2.3.4节对外来夹杂物制,是可接受的。
Target Condition - Class 1,2,3(⽬标条件 - 1,2,3级)
Uniform and no separations or delamination.
No wrinkles, creases or soda strawing.
覆盖层均匀或分
皱褶吸管状空
Acceptable - Class 1,2,3(可接受条件 - 1,2,3级)
Delamination and nonlamination meets the following criteria:
At random locations away from conductors, each separation is no larger than
0.80 x 0.80 mm [0.0315 x 0.0315 in] and is not within 1.0 mm [0.0394 in] of
the printed board edge or the coverfilm opening.
The total number of separations does not exceed three in any 25 x 25 mm
[0.984 x 0.984 in] of coverfilm surface area.
The total separation does not exceed 25% of the spacing between adjacent con-
ductors.
No coverfilm nonlamination along the outer edges of the coverfilm.
未层符合以下准则:
离导体的机位,每处分不大于0.80x0.80mm[0.0315inx0.0315
in]不在或覆盖膜开1.0mm[0.0394in]内。
在覆盖表面25mmx25mm[0.984inx0.984in]的区域内,分离总数未
3
总长度没有间距25%
沿覆盖外部边缘的覆盖没有出现未层
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。
411a
411b
411c
411d
4.1 FLEXIBLE AND RIGID-FLEX PRINTED BOARDS及刚挠性印制板)
4.1.1 Coverlay Coverage Coverfilm Separations(覆盖层覆盖 覆盖膜分
133IPC-A-600H-2010 20104
The covercoat coverage shall have the same requirements as the solder mask coatings in the rigid printed board section of this document. This
section covers the acceptability requirements for coverlay coverage including squeeze-out of adhesive over the solderable land area and foil
surface.
覆盖的覆盖要求应当与本文件中性印制板一节规定的膜涂的要求相同。本节覆盖的覆盖可接受性要求包括下述的
铜箔表面出的
4.1.2.1 Adhesive Squeeze-Out – Land Area(焊盘区域接剂的挤出
Target Condition - Class 1,2,3(⽬标条件 - 1,2,3级)
No unwanted material on land area.
区域的材料。
Acceptable - Class 3(可接受条件 - 3级)
A 0.05 mm [0.00197 in] solderable annular ring for 360° of the
circumference.
360°内有0.05mm[0.00197in]的可焊孔环
Acceptable - Class 2(可接受条件 - 2级)
A 0.05 mm [0.00197 in] solderable annular ring for at least 270°
of the circumference.
至少270°内有0.05mm[0.00197in]的可焊孔环
Acceptable - Class 1(可接受条件 - 1级)
A solderable annular ring for at least 270°of the circumference.
至少270°内有可焊孔环
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。
4121a
4121b
270°
4.1 FLEXIBLE AND RIGID-FLEX PRINTED BOARDS及刚挠性印制板)
4.1.2 Coverlay/Covercoat Coverage – Adhesives(覆盖层/覆盖涂层的覆盖 接剂)
134 IPC-A-600H-201020104
Target Condition - Class 1,2,3(⽬标条件 - 1,2,3级)
No unwanted material on foil surface.
铜箔表面没有材料。
Acceptable - Class 3(可接受条件 - 3级)
70 µm foil and below:于70µm及以下铜箔:
≤0.2 mm [0.0079 in].
≤0.2mm[0.0079in].
Above 70 µm foil于70µm上铜箔:
≤0.4 mm [0.0157 in] or AABUS.
≤0.4mm[0.0157in]或由供需双方协商确定。
Acceptable - Class 1,2(可接受条件 - 1,2级)
70 µm foil and below: 70µm及以下铜箔:
≤0.3 mm [0.0118 in]
≤0.3mm[0.0118in]
Above 70 µm foil70µm上铜箔:
≤0.5 mm [0.0197 in] or AABUS.
≤0.5mm[0.0197in]或由供需双方协商确定。
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。
4122a
4122b
4122c
4.1 FLEXIBLE AND RIGID-FLEX PRINTED BOARDS及刚挠性印制板)
4.1.2.2 Adhesive Squeeze-Out – Foil Surface(铜箔表⾯接剂的挤出
135IPC-A-600H-2010 20104