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IPC - IPC Standard - IPC-SM-840E
IPC-SM-840E:

Qualification and Performance Specifiation of Permanent Solder Mask and Flexible Cover Materials

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Price    
Rev E E
Language English   Chinese
Number of page 30 28
Date of Publication 2010 2010 
     
         

Establishes the requirements for the evaluation of liquid and dry film solder mask material and for the determination of the acceptability of use on a standard printed board system. IPC-SM-840 provides two classes of requirements, T and H, to reflect functional performance requirements and testing severity based on industry/end use requirements. Coverage is given to adhesion, material qualification, resistances to solvents, and electrical requirements. Revision E incorporates requirements for flexible cover materials used as a flexible dielectric protective layer over etched conductors and other conductive features.


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IPC-A-610  IPC-A-600 IPC-A-620 IPC-7711/7721
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