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:
May. 01, 2018

Filed:

Oct. 24, 2012
Applicant:

Taiwan Semiconductor Manufacturing Company Limited, Hsin-Chu, TW;

Inventors:

Chung-Yen Chou, Hsinchu, TW;

Po-ken Lin, Hsinchu, TW;

Shih-Chang Liu, Yuku Village, TW;

Chia-Shiung Tsai, Hsin-Chu, TW;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 29/92 (2006.01); H01L 29/94 (2006.01);
U.S. Cl.
CPC ...
H01L 29/945 (2013.01);
Abstract

One or more techniques or systems for forming a contact structure for a deep trench capacitor (DTC) are provided herein. In some embodiments, a contact structure includes a substrate region, a first region, a second region, contact landings, a first trench region, a first landing region, and a second trench region. In some embodiments, a first region is over the substrate region and a second region is over the first region. For example, the first region and the second region are in the first trench region or the second trench region. Additionally, a contact landing over the first trench region, the second trench region, or the first landing region is in contact with the first region, the second region, or the substrate region. In this manner, additional contacts are provided and landing area is reduced, thus reducing resistance of the DTC, for example.


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