Qualification criteria of visual inspection items of soldering effects for melf resistors
Classification Description: the requirements specified in this document reflect the following three acceptable quality levels:
Class 1: it refers to the production process of instruments and meters used in general electronic products;
Class 2: it refers to the production and manufacturing of instrument products and equipment with reliability requirements;
Class 3: it refers to the production and manufacturing of instrument products and equipment with high reliability requirements
分级说明：本文件规定的要求反映了如下三个产品级别：晶圆电阻使用厂家可以根据自己产品的定位选择合格判据的级别
1级：是使用在普通类电子产品中的仪器仪表生产过程中的检验要求；
2级：是使用在有可靠性要求的仪器仪表产品、设备的生产制造过程中的检验要求；
3级：是使用在有较高可靠性要求的仪器仪表产品、设备的生产制造过程中的检验要求
