IPC SM-840C
$25.00
Qualification and Performance of Permanent Polymer Coating (Solder Mask) for Printed Boards, Includes Amendment 1
Streamlines solder mask classes into two classifications: H (high reliability) and T (telecommunications). IPC-SM-840C also integrates Bellcore requirements (class T) and provides minimum voltage breakdown, defines mask formulation latitude, adds new mask chemistries and more.
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