I'm sure that this subject has been discussed to death already, but I am new to TechNet and missed it. What is a reasonable specification for HASL solder thickness for PCBs with .020" pitch SMT devices? If someone could repost previous discussions on the subject it would be greatly appreciated. Also, we have had problems from multiple vendors with PCBs in scored arrays. Too often we find them to be difficult to break apart, even using a custom fixture for leverage. What tests can we do to determine (before populating the board) if the PCB is scored properly? What is a reasonable inspection method for us to require our vendors to comply with? Thanks in advance for your input. ========================================================= | Chris Stack | [log in to unmask] | Printed Circuit Board Designer and Purchasing Agent -------------------- | CD Electronics, Inc. Ph. (803) 627-8800 (Ext. 231) | 7640 Pelham Road Fax. (803) 675-0106 | Greenville S.C. 29615-5736 =========================================================