Patents Assigned to Ruwel AG
  • Circuit board with at least one rigid and at least one flexible area and process for producing rigid-flexible circuit boards
    Patent number: 7238891
    Abstract: A rigid-flexible circuit board with two rigid areas and one flexible area, with a rigid individual layer which is copper-clad on one side, with an adhesive medium and with a copper foil, the adhesive medium having recesses in the flexible area. The rigid-flexible circuit board can be produced especially easily and economically in that at least in the rigid area there is no flexible individual layer, especially no polyimide film, between the adhesive medium and the copper foil.
    Type: Grant
    Filed: September 19, 2003
    Date of Patent: July 3, 2007
    Assignee: Ruwel AG
    Inventor: Roland Muenzberg
  • Printed board comprising at least one stiff area and at least one flexible area, and method for the production of stiff-flexible printed boards
    Publication number: 20060007641
    Abstract: A rigid-flexible circuit board with two rigid areas (2) and one flexible area (3), with a rigid individual layer (4) which is copper-clad on one side, with an adhesive medium (7) and with a copper foil (8), the adhesive medium (7) having recesses in the flexible area (3). The rigid-flexible circuit board (1) can be produced especially easily and economically in that at least in the rigid area (2) there is no flexible individual layer (9), especially no polyimide film, between the adhesive medium (7) and the copper foil (8).
    Type: Application
    Filed: September 19, 2003
    Publication date: January 12, 2006
    Applicant: Ruwel AG
    Inventor: Roland Muenzberg