JEDEC JESD 22-A121
Test Method for Measuring Whisker Growth on Tin and Tin Alloy Surface Finishes
|Publication Date:||1 July 2008|
The methodology presented in this document, see Annex A for process flow, is applicable for studying tin whisker growth from finishes containing a predominance of tin (Sn). This test method may not be sufficient for applications with special requirements, e.g., military or aerospace. Additional requirements may be specified in the appropriate requirements document.
The purpose of this standard is to:
- Provide an industry-standardize
d suite of tests for measurement and comparison of whisker propensity for different plating or finish chemistries and processes.
- Provide a consistent inspection protocol for tin whisker examination.
- Provide a standard reporting format.