Invention Grant
- Patent Title: Semiconductor device and method
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Application No.: US16376519Application Date: 2019-04-05
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Publication No.: US10658975B2Publication Date: 2020-05-19
- Inventor: Lan-Chou Cho , Huan-Neng Chen , Chewn-Pu Jou , Feng Wei Kuo
- Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
- Applicant Address: TW Hsinchu
- Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
- Current Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
- Current Assignee Address: TW Hsinchu
- Agency: Slater Matsil, LLP
- Main IPC: H03B5/12
- IPC: H03B5/12 ; H03L7/00 ; H01F27/28 ; H01F5/04 ; H01F38/14 ; H01F19/04 ; H03L7/099

Abstract:
A circuit includes a first digital controlled oscillator and a second digital controlled oscillator coupled to the first digital controlled oscillator. A skew detector is connected to determine a skew between outputs of the first digital controlled oscillator and the second digital controlled oscillator, and a decoder is utilized to output a control signal, based on the skew, to modify a frequency of the first digital controlled oscillator using a switched capacitor array to reduce or eliminate the skew.
Public/Granted literature
- US20190229677A1 Semiconductor Device and Method Public/Granted day:2019-07-25
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