CONFORMAL COATINGS FOR PRINTED CIRCUIT ASSEMBLIES

Abstract

Investigation of one-component epoxy, acrylic, and polystyrene-base coating compounds for use as conformal coatings on Type GB GLASS-EPOXY LAMINATE WAS CONDUCTED. To eliminate all corrosion effect other than those from the testing or the coating itself, a stepwise cleaning technique for the surface of the specimen panel was devised. A visual check of the coated test panels revealed no evidence of blistering, wrinkling, cracking and peeling of coating and no corrosion of printed conductors. All coatings showed good adhesion of specimen test panels. The effects of the thickness of coatings on insulation resistance and Q-factor under prolonged humidity conditions were studied. The effects of coatings on copper, gold and solder-plate conductors with respect to their effect on Q-factor an capacity at 1, 50 and 100mc were also studied.

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Document Details

Document Type
Technical Report
Publication Date
Oct 31, 1962
Accession Number
AD0293234

Entities

People

  • Anthony J. Beccasio

Organizations

  • Motorola Mobility

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Assembly
  • Circuit Boards
  • Circuits
  • Coatings
  • Contracts
  • Electrical Properties
  • Engineers
  • Epoxy Coatings
  • Epoxy Laminates
  • Humidity
  • Material Degradation Processes
  • Materials
  • Materials Processing
  • Printed Circuits
  • Resins
  • Resistance
  • United States

Fields of Study

  • Materials science

Readers

  • Thermal Physics or Thermal Science.
  • Thin Film Deposition Science.

Technology Areas

  • Microelectronics
  • Microelectronics - Graphene