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:
Oct. 25, 2011

Filed:

Jan. 06, 2010
Applicants:

Seung-tae Choi, Osan-si, KR;

Ji-hyuk Lim, Suwon-si, KR;

Woon-bae Kim, Suwon-si, KR;

Eun-seok Park, Yongin-si, KR;

Jeong-yub Lee, Seoul, KR;

Inventors:

Seung-tae Choi, Osan-si, KR;

Ji-hyuk Lim, Suwon-si, KR;

Woon-bae Kim, Suwon-si, KR;

Eun-seok Park, Yongin-si, KR;

Jeong-yub Lee, Seoul, KR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01G 5/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A tunable capacitor using an electrowetting phenomenon includes a first electrode; a second electrode which is spaced apart from the first electrode and faces the first electrode; a fluidic channel which is disposed between the first electrode and the second electrode; a first insulating layer which is disposed between the first electrode and the fluidic channel; and a conductive fluid which is disposed in the fluidic channel and moves along the fluidic channel when a direct current (DC) potential difference occurs between the first and second electrodes. Accordingly, it is possible to fabricate the tunable capacitor with the simplified fabrication process, good reliability and durability, and no restriction on the tuning range.


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