IPC TM-650 2.2.14.2-1995
焊锡粉末颗粒尺寸分布-光学图像分析仪方法

Solder Powder Particle Size Distribution - Optical Image Analyzer Method

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标准号

IPC TM-650 2.2.14.2-1995

发布

1995年

发布单位

美国电子电路和电子互连行业协会

 

 

适用范围

IPC-TR-464 was originally published in April of 1984. This Technical Report was developed to meet the growing need for a standard method of evaluating the solderability retention capability of printed circuit parts during inventory storage. The report indicated that a 1-4 hour aging procedure was in'adequate to assure the level of acceptable solderability required by the industry. A 20-24 hour aging times was recommended. Since the initial publications of IPC-TR-464, additional research has taken place on accelerated aging; better leadltermination coatings are being used to meet aging requirements imposed by the industry. In 1986 the Accelerated Aging Task Group of the IPC was reactivated to . Evaluate the most recent research to determine if the aging period could be shorted, and still provide the appropriate information on solderability retention. This addendum to IPC-TR-464 published December 1987 represents the results of the task group study.

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