Invention Grant
- Patent Title: Phase locked loop including a varainductor
- Patent Title (中): 锁相环包括变容二极管
-
Application No.: US14132301Application Date: 2013-12-18
-
Publication No.: US09478344B2Publication Date: 2016-10-25
- Inventor: Yi-Hsuan Liu , Hsieh-Hung Hsieh , Chewn-Pu Jou , Fu-Lung Hsueh
- Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
- Applicant Address: TW
- Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
- Current Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
- Current Assignee Address: TW
- Agency: Hauptman Ham, LLP
- Main IPC: H01F21/12
- IPC: H01F21/12 ; H01F27/28 ; H01F27/40 ; H03B5/12 ; H03L7/099
Abstract:
A varainductor includes a spiral inductor over a substrate, the spiral inductor comprising a ring portion. The varainductor further includes a ground ring over the substrate, the ground ring surrounding at least the ring portion of the spiral inductor and a floating ring over the substrate, the floating ring disposed between the ground ring and the spiral inductor. The varainductor further includes an array of switches, the array of switches is configured to selectively connect the ground ring to the floating ring.
Public/Granted literature
Information query
