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.
Patent No.:
Date of Patent:
Jun. 25, 2019
Filed:
Dec. 29, 2016
Applicant:
Semiconductor Energy Laboratory Co., Ltd., Atsugi-shi, Kanagawa-ken, JP;
Inventor:
Haruki Katagiri, Atsugi, JP;
Assignee:
Semiconductor Energy Laboratory Co., Ltd., Kanagawa-ken, JP;
Primary Examiner:
Int. Cl.
CPC ...
H02M 7/04 (2006.01); H01L 27/12 (2006.01); H04N 5/378 (2011.01); G06K 19/077 (2006.01); H01L 27/092 (2006.01); H01L 29/786 (2006.01); H04N 5/374 (2011.01);
U.S. Cl.
CPC ...
H04N 5/378 (2013.01); G06K 19/07701 (2013.01); H01L 27/092 (2013.01); H01L 27/124 (2013.01); H01L 27/1207 (2013.01); H01L 27/1225 (2013.01); H01L 27/1255 (2013.01); H01L 29/7869 (2013.01); H01L 29/78648 (2013.01); H02M 7/04 (2013.01); H04N 5/374 (2013.01);
Abstract
A semiconductor device that can extend the range of adaptable sampling rate when performing analog/digital conversion is provided. The semiconductor device includes a plurality of sample-and-hold circuits storing an analog signal and a plurality of converter circuits having a function of converting the analog signal stored in the sample-and-hold circuit into a digital signal. The sample-and-hold circuit includes a switch and a capacitor that is supplied with an analog signal through the switch. The switch includes an oxide semiconductor in a channel formation region.