A Study of Solvent and Aqueous Cleaning of Fluxes.

Abstract

Rosin-based and non-rosion fluxes were tested for ionic cleanliness after processing in one of three systems: solvent vapor degreasing, in-line aqueous cleaning, or a combination of solvent vapor degreasing followed by a deionized water rinse. Solvents containing a large percentage of alcohol gave the best ionic cleanliness for event the most difficult to remove rosin-based fluxes. Water alon cannot remove non-rosin flux residue. Detergents removed ionic contamination from the rosin, mildly activated (RMA) and the non-rosion fluxes but were unable to clean rosin, activated (RA) fluxes to an acceptable level of cleanliness. Combination cleaning proved very effective for removal of rosin-based fluxes. Insulation resistance testing of detergent cleaned rosin-based fluxes showed no degradation of sample printed wiring board resistance characteristics. Non-rosin fluxes degraded board resistance to an unacceptable degree. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1983
Accession Number
ADA124950

Entities

People

  • Donna Sanger
  • Kathryn Johnson

Organizations

  • Naval Air Weapons Station China Lake

Tags

Communities of Interest

  • Human Systems
  • Weapons Technologies

DTIC Thesaurus Topics

  • Alcohols
  • Assembly
  • Buffers (Chemistry)
  • Circuit Boards
  • Manufacturing
  • Materials Processing
  • Materials Testing
  • Measurement
  • Plastic Explosives
  • Printed Circuits
  • Silver Compounds
  • Sodium Compounds
  • Specific Gravity
  • Standards
  • Systems Engineering
  • Test Methods
  • War Colleges

Fields of Study

  • Materials science

Readers

  • Environmental Engineering
  • Environmental Engineering.
  • Library and Information Science/ Studies, Southeast Asia Studies, Bibliography of Vietnam and Lao Studies.

Technology Areas

  • Microelectronics
  • Microelectronics - Graphene