Contamination control in hybrid microelectronic modules. Part 2 : Selection and evaluation of coating materials
- Himmel, R. P.
- Apr 1, 1975.
- Physical Description:
- 1 electronic document
- Restrictions on Access:
- Unclassified, Unlimited, Publicly available.
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- The selection, test, and evaluation of organic coating materials for contamination control in hybrid circuits is reported. The coatings were evaluated to determine their suitability for use as a conformal coating over the hybrid microcircuit (including chips and wire bonds) inside a hermetically sealed package. Evaluations included ease of coating application and repair and effect on thin film and thick film resistors, beam leads, wire bonds, transistor chips, and capacitor chips. The coatings were also tested for such properties as insulation resistance, voltage breakdown strength, and capability of immobilizing loose particles inside the packages. The selected coatings were found to be electrically, mechanically, and chemically compatible with all components and materials normally used in hybrid microcircuits.
- Other Subject(s):
- NASA Technical Reports Server (NTRS) Collection.
- Document ID: 19760007288.
Accession ID: 76N14376.
- No Copyright.
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