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:
Nov. 28, 1989
Filed:
Dec. 05, 1988
Thomas J Gmitter, Lakewood, NJ (US);
Eli Yablonovitch, Middletown Township, Monmouth County, NJ (US);
Bell Communications Research, Inc., Livingston, NJ (US);
Abstract
A method for removing an epitaxial film from a single crystal substrate upon which it is grown and adhering the films to second substrate and the resultant structure. The removing method comprises (a) providing a thin release layer (.ltoreq.100 nm) between the film to be grown and the single crystal substrate; (b) growing the epitaxial film; (c) applying a polymeric support layer which is under tension over the film; and (d) selectively etching the release layer, the tension in the support layer causing the edges of the film to curve upwardly as the release layer is etched away. The adhering method uses either adhesives or relies solely on Van der Waals bonding between the epitaxial film and the second substrate.