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:
Jun. 22, 2010

Filed:

Oct. 24, 2008
Applicants:

IN Young Lee, Daejeon, KR;

Seok-ju Yun, Daejeon, KR;

Sang-gug Lee, Daegu, KR;

Seong Hoon Choi, Seoul, KR;

Chang Sun Kim, Seoul, KR;

Inventors:

In young Lee, Daejeon, KR;

Seok-Ju Yun, Daejeon, KR;

Sang-Gug Lee, Daegu, KR;

Seong Hoon Choi, Seoul, KR;

Chang Sun Kim, Seoul, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 27/088 (2006.01); H03B 5/02 (2006.01); H03B 5/04 (2006.01); H03B 5/06 (2006.01); H03B 5/12 (2006.01); H03K 3/354 (2006.01);
U.S. Cl.
CPC ...
Abstract

The present invention relates to a switch, a negative resistance cell, and a differential voltage controlled oscillator using the same. The present invention includes a first signal line provided in a first direction, a second signal line provided in parallel with the first signal line, and first to fourth gate electrodes, first to third source electrodes, and first to fourth drain electrodes formed between the first signal line and the second signal line, and provides a switch having electrodes in the order of the first gate electrode, the first drain electrode, the second gate electrode, the first source electrode, the third gate electrode, the second drain electrode, the fourth gate electrode, the second source electrode, the fifth gate electrode, the third drain electrode, the sixth gate electrode, the third source electrode, the seventh gate electrode, the fourth drain electrode, and the eighth gate electrode. According to the present invention, a differential voltage controlled oscillator for RF oscillation operation in the broadband area is realized by minimizing generation of parasitic components.


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