T/CPCA 4302A-2016 Active Group standards

T/CPCA 4302A-2016 Conductive Silver Paste

T/CPCA 4302A-2016

Publish Date: 2016-12-20 Implement Date: 2017-01-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: T/CPCA 4302A-2016

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: Medical electronic instruments and equipment

ICS Name: Printed circuits and printed circuit boards

Publish Date: 2016-12-20

Implement Date: 2017-01-01

Scope

Scope: This standard specifies the performance requirements, test methods, quality assurance, packaging, transportation, and storage of conductive silver paste. This standard applies to the production, inspection, and acceptance of conductive silver paste used in printed circuit connections, via holes, flexible circuits, membrane switches, and connection ports. Main technical content: Compared with CPCA 4302-2004, the main technical changes are as follows: - Added terms and definitions: "via resistance" and "silver contact film"; - Deleted the definitions of "viscosity", "fineness", "hardness", "solid content", and "via" from the original standard; - Merged the requirements for physical properties before curing (see 4.1.2); - Added requirements and test methods for "limit values of harmful substances" (see 4.1.3; 5.2.6); - Added requirements for the "appearance" of the conductive silver coating after curing (see 4.2.1); - Added requirements and test methods for "adhesion (reworkability) between conductive silver coatings" (see 4.2.3.3; 5.2.9.3); - Added requirements for "solderability" and test methods.