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:
Jul. 19, 2005
Filed:
Mar. 20, 2002
Hideo Senoo, Kawaguchi, JP;
Takashi Sugino, Kawaguchi, JP;
Osamu Yamazaki, Saitama, JP;
Lintec Corporation, , JP;
Abstract
The present invention provides a sheet to form a protective film for chips, which can be readily formed into a highly uniform protective film on a back surface of chip, and which, even if minute scratches are formed on the back surface of chip as a result of mechanical grinding, can eliminate adverse effects resulting from the scratches. The sheet to form a protective film for chips of the present invention comprises a release sheet and a protective film forming layer formed on a detachable surface of the release sheet, wherein said protective film forming layer comprises a thermosetting or energy ray-curable component and a binder polymer component.