Patents Assigned to I.S.C. Chemicals Limited, Borax House
  • Lean testing of electrical or electrical components
    Patent number: 4736621
    Abstract: A method of leak testing electrical or electronic components, by immersion in an inert liquid at a temperature above 100.degree. C., to detect any bubbles arising from the component, after which the component is removed from the liquid and drained, wherein according to the invention the liquid in which the component to be tested is immersed comprises predominantly perfluoroperhydrofluorene, C.sub.13 F.sub.22.
    Type: Grant
    Filed: July 7, 1986
    Date of Patent: April 12, 1988
    Assignee: I.S.C. Chemicals Limited, Borax House
    Inventors: David S. L. Slinn, David E. M. Wotton, Colin R. Sargent