Invention Grant
- Patent Title: Methods of forming tunable capacitors
- Patent Title (中): 形成可调电容器的方法
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Application No.: US12626562Application Date: 2009-11-25
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Publication No.: US08424176B2Publication Date: 2013-04-23
- Inventor: Patrick Smith , Zhigang Wang
- Applicant: Patrick Smith , Zhigang Wang
- Applicant Address: US CA San Jose
- Assignee: Kovio, Inc.
- Current Assignee: Kovio, Inc.
- Current Assignee Address: US CA San Jose
- Agency: The Law Offices of Andrew D. Fortney
- Agent Andrew D. Fortney
- Main IPC: H01G4/06
- IPC: H01G4/06

Abstract:
The present invention relates to methods of making and using tunable capacitors and devices. Using the methods described, one or more secondary tunable capacitors can be connected to a primary capacitor by printing a connector conducting layer or feature to obtain a desired net capacitance. Digitally printing the connector conducting layer allows the number of secondary capacitors connected into the circuit to be determined during the integrated circuit fabrication process, without the need for individual masks connecting the appropriate number of secondary capacitors. This provides an in-process or post-process trimming method to obtain the desired precision and accuracy for capacitors. Various sizes and combinations of secondary capacitors can be connected to obtain high precision capacitors and/or improved matching of capacitance values.
Public/Granted literature
- US20100296225A1 Tunable Capacitors Public/Granted day:2010-11-25
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