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:
Jun. 30, 2026
Filed:
Feb. 01, 2023
Globalwafers Co., Ltd., Hsinchu, TW;
Charles R. Lottes, Ballwin, MO (US);
Jeffrey L Libbert, O'Fallon, MO (US);
Qingmin Liu, Glen Carbon, IL (US);
GlobalWafers Co., Ltd., Hsinchu, TW;
Abstract
A method of preparing a multilayer structure includes providing a single crystal semiconductor handle substrate that includes a front surface, a back surface, a circumferential edge joining the front and back surfaces, and a central plane between the front and back surfaces. The single crystal semiconductor handle substrate has a minimum bulk region resistivity of at least about 500 Ohm-cm. The method also includes depositing a semiconductor layer on the front surface of the single crystal semiconductor handle substrate. Depositing the semiconductor layer is performed by two or more cycles of depositing a portion of the semiconductor layer and interrupting the deposition after the portion of the semiconductor layer has been deposited to anneal the portion of the semiconductor layer.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile