IPC-A-600H-2010 中文版 印制板的可接受性 (1).pdf - 第143页

T arget 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 多 余 材料。 Acceptable - Class 3 (可接受条件 - 3级) 70 µm foil and below: ( 对 于70 µ m及以 下铜箔: ) • ≤0.2 mm [0.0079 in]. • ≤0.2mm[0.007…

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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
In cases where anchoring spurs are attached to the lands, they shall be lapped by the coverlay.
上有盘趾时,覆盖应当盘趾覆盖。
Target Condition - Class 1,2,3(⽬标条件 - 1,2,3级)
Meets nominal registration.
足标要求。
Acceptable - Class 3(可接受条件 - 3级)
Coverlay or stiffener does not extend into the hole.
For supported holes, a solderable annular ring of 0.05 mm
[0.00197 in] or more for the full circumference.
For unsupported holes, a solderable annular ring of 0.25 mm
[0.00984 in].
覆盖强板没有至孔内。
对于 整个圆 上可焊孔环等于或大于0.05 mm
[0.00197in]
对于非支,焊孔环0.25mm[0.00984in]
Acceptable - Class 2(可接受条件 - 2级)
Coverlay or stiffener does not extend into the hole.
A solderable annular ring for 270° or more of the circumference.
覆盖强板没有至孔内。
上大于等于270°内有可焊孔环
Acceptable - Class 1(可接受条件 - 1级)
Coverlay or stiffener does not extend into the hole.
A solderable annular ring for 180° or more of the circumference.
覆盖强板没有至孔内。
上大于等于180°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。
413a
413b
413c
4.1 FLEXIBLE AND RIGID-FLEX PRINTED BOARDS及刚挠性印制板)
4.1.3 Access Hole Registration for Coverlay and Stiffeners元器件孔与覆盖层及增强板的重合度)
136 IPC-A-600H-201020104