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:
Jan. 27, 2009
Filed:
Nov. 16, 2005
Tomoko Tamura, Atsugi, JP;
Tomoko Tamura, Atsugi, JP;
Semiconductor Energy Laboratory Co., Ltd., Kanagawa-ken, JP;
Abstract
A manufacturing method of a semiconductor device at low cost with high reliability, wherein a semiconductor device is manufactured by peeling an element forming layer having a thin film transistor and the like provided over a substrate from the substrate. A metal film is formed on a substrate, plasma treatment is applied thereto to form a metal oxide film on the metal film, an element forming layer is formed on the metal oxide film, an insulating film is formed to cover the element forming layer, an opening is formed in the insulating film and the element forming layer, an etchant is injected through the opening to remove the insulating film and the element forming layer, and the element forming layer is peeled off the substrate. The peeling may be performed by removing the metal film and the metal oxide film partially and then employing a physical means.