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:
Dec. 07, 2021
Filed:
Mar. 29, 2017
Applicant:
Murata Manufacturing Co., Ltd., Nagaokakyo, JP;
Inventors:
Assignee:
MURATA MANUFACTURING CO., LTD., Nagaokakyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03H 9/02 (2006.01); H03H 9/10 (2006.01); H03H 9/24 (2006.01); H03H 9/17 (2006.01); H03H 9/15 (2006.01);
U.S. Cl.
CPC ...
H03H 9/02448 (2013.01); H03H 9/02259 (2013.01); H03H 9/10 (2013.01); H03H 9/1057 (2013.01); H03H 9/173 (2013.01); H03H 9/2405 (2013.01); H03H 2009/155 (2013.01); H03H 2009/241 (2013.01);
Abstract
A piezoelectric vibrator is a piezoelectric vibrator including a vibration portion. The vibration portion has an n-type Si layer which is a degenerated semiconductor and which has a resistivity of not less than 0.5 mΩcm and not greater than 1.2 mΩcm and preferably not greater than 0.9 mΩcm.