The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 14, 1993
Filed:
Sep. 23, 1991
Frank J Johnson, Santa Cruz, CA (US);
Amkor Electronics, Inc., West Chester, PA (US);
Abstract
A slitter machine for slitting a film sheet wound on a core in a roll to obtain desired widths of film sheet for laminating onto metallic substrates of semiconductor devices comprises a main frame, notches on the main frame for rotatably supporting the roll on the frame, a rotatable knife blade for slitting the roll sheet into a strip of desired width, a tiltable knife blade mounting plate on the frame for mounting the knife blade on the frame, guide tracks adjusting the lateral position of the knife blade to adjust the width of the strip being cut, an air cylinder for pressing the knife blade into the rolled sheet to cut the sheet into strips of the desired width, and a sensing roller for limiting the depth of the cut.