Patent · US Expired

Apparatus for removing protective films

US5540809A · kind A · utility

33Cited by
6References
21Claims
0Family size

Assignee

Inventors

Key dates

Filing dateNov 22, 1993
Grant dateJul 30, 1996
Priority date
Expiry dateNov 22, 2013

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T156/1956
  • WIPO fieldOther special machines
  • WIPO sectorMechanical engineering

Abstract

In an apparatus for removing protective films, a groove is formed in a roller having an adhesive surface sufficient to peel off a protective film from a printed wiring board. The exposed printed wiring board, on which a dry film provided with a protective film is applied, is passed between the rollers. Thus, the protective film is peeled off from the surface of the dry film resist of the printed wiring board and adhered to the roller so as to be removed. As a result, the protective film can be removed at a high speed, and automated removal of protective films can be achieved.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.