IPC-A-600H-2010 中文版 印制板的可接受性 (1).pdf - 第22页

Acceptable - Class 1,2,3 (可接受条件 - 1,2,3级) • Exposed or disrupted fibers do not bridge conductors and do not reduce the conductor spacing below the minimum requirements. • 暴 露 或 断裂 的 纤维未 跨 接 导 体, 且未 使 导 体的 间距 减 少至 低 于最 小 …

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Weave Texture: A surface condition of base material in which a weave pattern of cloth is apparent although the unbroken fibers of woven
cloth are completely covered with resin.
显布纹:指基材的一种表面状况,即未断裂织物纤维虽被树脂完全覆盖,但路明显。
Acceptable - Class 1,2,3(可接受条件 - 1,2,3级)
Weave texture is an acceptable condition in all classes but is
sometimes confused with weave exposure because of similar
appearances.
对于所有级产品是可接受的,但有时因外观
似而露织物相混淆
Figure 222b is an example of a surface condition that could be
either weave exposure or weave texture. The difference cannot be
determined from this view. The difference can be discerned using
nondestructive tests (oblique illumination with microscope) or
micro-section.
222b可能是露织物可能是显。通过该视
法区分其差别。可采用破坏性测试(倾斜照明下显微
观察)或显微剖切确定。
222a
注:此图仅⽤作说明状况,并不要求做显微剖切评价。
222b
2.2 BASE MATERIAL SURFACE(基材表⾯)
2.2.2 Weave Texture(显布纹)
13IPC-A-600H-2010 20104
Acceptable - Class 1,2,3(可接受条件 - 1,2,3级)
Exposed or disrupted fibers do not bridge conductors and do not
reduce the conductor spacing below the minimum requirements.
断裂纤维未体,且未使体的间距少至
于最要求。
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。
223a
223b
2.2 BASE MATERIAL SURFACE(基材表⾯)
2.2.3 Exposed/Disrupted Fibers(暴露/断裂的纤维)
14 IPC-A-600H-201020104
Target Condition - Class 1,2,3(⽬标条件 - 1,2,3级)
No pits or voids.
麻点和空洞。
Acceptable - Class 1,2,3(可接受条件 - 1,2,3级)
Pits or voids do not exceed 0.8 mm [0.031 in].
Total printed board area affected is less than 5% per either side.
Pits or voids do not bridge conductors.
麻点或空洞不大于0.8mm[0.031in]
印制板每面受影响的区域于每面面5%
麻点或空洞体。
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。
224a
224b
224c
2.2 BASE MATERIAL SURFACE(基材表⾯)
2.2.4 Pits and Voids(⿇点和空洞)
15IPC-A-600H-2010 20104