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:
Apr. 22, 2008

Filed:

Aug. 02, 2005
Applicant:

Dae Hyun Nam, Kyunggi-Do, KR;

Inventor:

Dae Hyun Nam, Kyunggi-Do, KR;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 21/00 (2006.01); H01L 21/84 (2006.01);
U.S. Cl.
CPC ...
Abstract

A thin film transistor includes a substrate, a crystallized semiconductor layer formed over the substrate having a channel region, low-density impurity regions and high-density impurity regions, a gate insulating layer formed on the crystallized semiconductor layer, a first gate electrode formed on the gate insulating layer having a width corresponding to the channel region, a second gate electrode formed on the first gate electrode and on the gate insulating layer such that the second gate electrode overlaps the low-density impurity regions and a source electrode and a drain electrode respectively contacting the high-density impurity regions.


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