Patent ID: 6700650
Filing Date: 2004-03-02
Classification: G03F,H05K

Abstract:
A holder for exposing both faces of a panel to light in order to make a double-sided printed circuit by using first and second flexible artworks disposed on either side of said panel, said holder comprising:a first frame, having no transparent plane support member, for receiving the first flexible artwork; a second frame, having no transparent plane support member, for receiving the second flexible artwork; means for positioning and fixing the peripheries of said first and second artworks respectively to said first and second frames; means for positioning and holding said panel between said first and second frames; approach means for causing said frames carrying said artworks to move progressively towards the faces of said panel by traveling from a spaced-apart first position towards an exposure second position; and means for establishing suction in the space between the first and second frames having the peripheries of said first and second artworks respectively fixed thereto and said panel therebetween, thereby causing said artworks to become pressed progressively against the two faces of said panel.