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.

Date of Patent:
Jul. 06, 2010

Filed:

Nov. 14, 2006
Applicants:

Cristiano Capasso, Austin, TX (US);

Srikanth B. Samavedam, Austin, TX (US);

Eric J. Verret, Austin, TX (US);

Inventors:

Cristiano Capasso, Austin, TX (US);

Srikanth B. Samavedam, Austin, TX (US);

Eric J. Verret, Austin, TX (US);

Assignee:

Freescale Semiconductor, Inc, Austin, TX (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 29/78 (2006.01);
U.S. Cl.
CPC ...
Abstract

An electronic device includes an n-channel transistor and a p-channel transistor. The p-channel transistor has a first gate electrode with a first work function and a first channel region including a semiconductor layer immediately adjacent to a semiconductor substrate. In one embodiment, the first work function is less than the valence band of the semiconductor layer. In another embodiment, the n-channel transistor has a second gate electrode with a second work function different from the first work function and closer to a conduction band than a valence band of a second channel region. A process of forming the electronic device includes forming first and second gate electrodes having first and second work functions, respectively. First and second channel regions having a same minority carrier type are associated with the first and second gate electrodes, respectively.


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