本文件包含各种印刷电路板异常和特征的各种照片插图，用于识别在检查和评估过程中有时会看到的异常。本手册分为14个不同的章节，涵盖阻焊剂、镀通孔、导体特性和表面电镀等主题，以帮助用户确定各种异常的具体验收/不合格标准。

This document contains a wide variety of photographic illustrations of various anomalies and characteristics of printed boards for identification of anomalies that are sometimes seen during inspection and evaluation processes. The handbook has been divided into fourteen distinct sections covering topics such as solder resist, plated-through holes, conductor characteristics and surface plating to aid the user in determining specific accept/nonconforming criteria for various anomalies.