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PCB外观目检拒收标准(中英文)

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德信诚培训网 PCB 外观目检拒收标准 External PCBA Visual Reject Criteria 1.0 Purpose 目的 This document provides the visual inspection reject criteria to be used for all manufactured Printed Circuit Board Assemblies (PCBAs). 本文件制定了用于 PCBAs 制造过程中的目视检验拒收规范。 2.0 Scope 范围 This document shall include all PCBAs manufactured by DXC Production Assembly and Sub-contractors. Illustrations and descriptions in details explain the reject criteria so that all responsible individuals have common criteria while performing their assigned tasks. 本文件适用于由 DXC 和外协供应商生产制造的所用 PCBAs。本标准在细节方面由插图和描述做详细 解释以使所有执行他们任务的单位或个人有通用的标准。 3.0 Description 定义 工具和设备 4.1. Tools and Equipment Refer to Creative Workmanship Standard (Docu. No.: 29000) 参照创新工艺标准(Docu. No.: 29000) 更多免费资料下载请进:http://www.55top.com 好好学*社区 德信诚培训网 4.2. PCBA Visual Reject Criteria 4.2.1 Inspection Method PCBA 目检拒收标准 检验方法 Inspection conducted must conform to the following conditions: 必须按照下面的条件实施检验: (a) Inspection for PCBAs shall be conducted under fluorescent light with the PCBA placed at 30 cm (half-arm length) from the inspector’s eyes except for goldfinger area (see 4.2.1b). 在日光灯下, 把 PCBAs 放在距检验员眼睛 30 cm(半臂长) 的地方检验, 金手指除外。 (b) For the inspection on the goldfinger area, the PCBA is placed at 60cm (full-arm length) from the inspector’s eyes. 检验金手指区域,把 PCBA 放在距检验员眼睛 60cm(一臂长)的地方。 (c) The inspector must hold the PCBA slightly below eye-level. 检验员必须把 PCBA 轻放在眼睛下方。 (d) PCBA is considered rejected if the discrepancy is visible at any angles. 从任何角度缺陷均可见则 PCBA 将被拒收。 (e) Inspect each PCBA according to section 4.2.2 up to section 4.2.10. 按 4.2.2 到 4.2.10 检验每板 PCBA。 4.2.2 Silkscreen Printing 丝印 图例标识 7.2.2.1 Legend Markings Reject Criteria 拒收标准 A B 更多免费资料下载请进:http://www.55top.com 好好学*社区 德信诚培训网 complete (> 50% area) missing characters in the markings ? 标识中字符完全缺失。 X - ? illegible characters in the markings 标识中字符难以辨认 X - open areas of characters or symbols are filled which likely to result in ? confusion with another number, letter or symbol 字符或符号的空白区域被其它数字、字母或符号所填充而容易混淆 X - part of marking is missing, broken or smeared which likely to result in ? confusion with another number, letter or symbol 部分标识丢失,断裂或有抹痕,易被混淆成其它数字、字母或符号 X - misposition of legend marking that cover PTH or SMT pad ? PTH 或 SMT 焊盘上的标识移位 X X marking smeared or blurred but is still legible ? 标识有抹痕或毛边但仍清晰可辨 - ? double images that are legible 重影但清晰可辨 - - Applicable Areas 适用范围 A : Creative Logo, Model Number, Product Description, Card Revision, Headers, C


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