METHOD OF CLONING PRINTED WIRING BOARDS

摘要

A method of cloning printed wiring boards using a reverse engineering technique. Many printed wiring boards are no long- er manufactured because the manufacturer is no longer in business or the boards have become obsolete. A need exists to dupli- cate printed wiring boards which are no longer manufactured. Accordingly, a new method of cloning printed wiring boards in- cludes the steps of removing (10) all components from the printed wiring boards, drilling and routing (12) component intercon- nection points on the printed wiring boards, milling (14) the opposite sides of the printed wiring boards to a minimum thickness, X-raying (l6) the board to produce a film negative, photographing (18) the negative to provide a reversed negative and converting the reserved negative film to a diazo photograph.