1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions 2012 07 25 N-Status No replacement A. Wedepohl, NA 2005 02 07 Revised Inserted 3.0; Deleted 3.1, 3.4, 3.5, 4 1995 08 30 Activated L. Merala Controlled document at www.MATS Copyright 2012, Ford Global Technologies, LLC Page 1 of 2 SOLDER, BAR,
2、 62 SN/36 PB/2 AG NOT FOR NEW DESIGN WSS-M11A36-B 1. SCOPE The material defined by this specification is a 62 Sn/36 Pb/2 Ag eutectic bar solder. 2. APPLICATION This specification was released originally for material used for the wave soldering of leads used in SIPs. 3. REQUIREMENTS 3.0 STANDARD REQU
3、IREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements For Production Materials (WSS-M99P1111-A). 3.2 SOLDER COMPOSITION, atomic percent (ASTM B 32/QQ-S-571F, class 1 impurity levels) Tin 61.5 - 62.5 Silver 1.8 - 2.2 Zinc 0.005 max.
4、 Antimony 0.12 max. Bismuth 0.10 max. Copper 0.080 max. Iron 0.020 max. Aluminum 0.005 max. Cadmium 0.005 max. Indium 0.10 max. Nickel 0.010 max. Arsenic 0.030 max. Gold 0.080 max. Sulfur 0.005 max. Phosphorus 0.010 max. Lead Remainder 3.3 QUALITY The solder furnished under this specification shall
5、be homogeneous in composition and structure and shall be free from impurities harmful to the working characteristics of the material. ENGINEERING MATERIAL SPECIFICATION WSS-M11A36-B Copyright 2012, Ford Global Technologies, LLC Page 2 of 2 5. GENERAL INFORMATION The information given below is provid
6、ed for clarification and assistance in meeting the requirements of this specification. Contact for questions concerning Engineering Material Specifications. 5.1 PHYSICAL PROPERTIES (ASTM E 793, solidus and liquidus are points at which the downward and upward slope tangents cross baseline, respectively) Solidus 179 +/- 2 C eutectic Liquidus 179 +/- 2 C
