IPC-A-600H-2010 中文版 印制板的可接受性 (1).pdf - 第20页
Weave Exposure: A surface condition of base material in which the unbroken fibers of woven cloth are not completely covered by resin. 露织物： 指基材的一种表面状况，即 未断裂 的 织物纤维 没有 完全被 树脂 覆盖。 Acceptable - Class 3 （可接受条件 - 3级） • No weav…
Identification of Imperfections
Nondestructive visual criteria have been established to aid in the identification and disposition of laminate defects. Refer to the following
sections where definitions, illustrations and photographs have been provided which precisely define and identify the following conditions:
Surface 2.2
• weave exposure 2.2.1
• weave texture 2.2.2
• exposed/disrupted fibers 2.2.3
• pits and voids 2.2.4
Subsurface 2.3
• measling 2.3.1
• crazing 2.3.2
• delamination/blister 2.3.3
• foreign inclusions 2.3.4
It is important to note that laminate defect conditions may exist when the fabricator receives the material from the laminator, or may become
apparent during the fabrication of the printed board. Some defects may be induced during processing.
瑕疵的鉴别
为了帮助鉴别和处置层压板缺陷，业界已建立了无损目视检查准则，详见以下章节。这些章节给出了下列各种状况的定义、示意
图和照片，精确地定义并区分了下列状况：
基材表⾯ 2.2
• 露织物 2.2.1
• 显布纹 2.2.2
• 暴露/断裂的纤维 2.2.3
• 麻点和空洞 2.2.4
基材表⾯下 2.3
• 白斑 2.3.1
• 微裂纹 2.3.2
• 分层/起泡 2.3.3
• 外来夹杂物 2.3.4
重要的是，我们要注意层压板缺陷可能是在印制板生产商从层压板商处接收板材时就已经存在，或在印制板制造期间才显露出
来。有些缺陷则可能是在加工过程中产生的。
2.2 BASE MATERIAL SURFACE（基材表⾯）
Introduction（引⾔）
11IPC-A-600H-2010 2010年4月
Weave Exposure: A surface condition of base material in which the unbroken fibers of woven cloth are not completely covered by resin.
露织物：指基材的一种表面状况，即未断裂的织物纤维没有完全被树脂覆盖。
Acceptable - Class 3（可接受条件 - 3级）
• No weave exposure.
• 没有露织物。
Acceptable - Class 1,2（可接受条件 - 1,2级）
• Excluding the area(s) with weave exposure, the remaining space
between conductors meets the minimum conductor spacing
requirement.
• 导体间除去露织物区域之外，余下的距离满足最小导体间距
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.
• 缺陷不符合或超出上述要求。
图221a
注：此图仅⽤作说明状况，并不要求做显微剖切评价。
图221b
2.2 BASE MATERIAL SURFACE（基材表⾯）
2.2.1 Weave Exposure（露织物）
12 IPC-A-600H-20102010年4月
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，即尚未断裂的织物纤维虽被树脂完全覆盖，但编织纹路明显。
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.
• 显布纹对于所有级别产品均是可接受的，但有时会因外观相
似而与露织物相混淆。
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.
图222b的案例既可能是露织物，也可能是显布纹。通过该视
图无法区分其差别。可采用非破坏性测试（倾斜照明下显微
镜观察）或显微剖切确定。
图222a
注：此图仅⽤作说明状况，并不要求做显微剖切评价。
图222b
2.2 BASE MATERIAL SURFACE（基材表⾯）
2.2.2 Weave Texture（显布纹）
13IPC-A-600H-2010 2010年4月