Patents Assigned to Romar Technologies Incorporated
  • Process for forming printed circuits
    Patent number: 5092967
    Abstract: Printed electrical circuits are formed by coating an electrically insulating substrate with a layer of nickel metal followed by electroplating a second metal layer in a pattern of the desired circuit. Exposed nickel is removed from the substrate by reacting it with carbon monoxide to form nickel carbonyl vapor while the second metal remains unreacted. The nickel carbonyl vapor is heated to form nickel metal and carbon monoxide.
    Type: Grant
    Filed: June 17, 1991
    Date of Patent: March 3, 1992
    Assignee: Romar Technologies Incorporated
    Inventor: Robert G. Guess