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. 06, 2017
Filed:
Feb. 10, 2016
International Business Machines Corporation, Armonk, NY (US);
Lukas Czornomaz, Rueschlikon, CH;
Veeresh Vidyadhar Deshpande, Rueschlikon, CH;
Vladimir Djara, Rueschlikon, CH;
Jean Fompeyrine, Rueschlikon, CH;
International Business Machines Corporation, Armonk, NY (US);
Abstract
A first channel structure includes SiGeand a second channel structure includes a group III-V compound material. First and second gate stacks are formed on the first and second channel structures. An insulating layer is formed on the gate stacks and the channel structures and is removed from the first channel structure to form a spacer on sidewalls of the first gate stack. First raised source and drain layers are formed on the first channel structure. The insulating layer is removed from the second channel structure to form a spacer on sidewalls of the second gate stack. The surfaces of the first and second channel structures and first source and drain layers are oxidized. The oxide layers are treated by a cleaning process that selectively removes the second native oxide layer only. Second raised source and drain layers are formed on the second channel structure. A CMOS structure is disclosed.