Invention Grant
- Patent Title: Precision laser adjustable thin film capacitors
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Application No.: US15202862Application Date: 2016-07-06
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Publication No.: US10176925B2Publication Date: 2019-01-08
- Inventor: Kevin D. Christian , Gheorghe Korony
- Applicant: AVX Corporation
- Applicant Address: US SC Fountain Inn
- Assignee: AVX Corporation
- Current Assignee: AVX Corporation
- Current Assignee Address: US SC Fountain Inn
- Agency: Dority & Manning, P.A.
- Main IPC: H01G4/38
- IPC: H01G4/38 ; H01G4/33 ; H01L27/01 ; H01G4/005 ; H01G4/06

Abstract:
Disclosed are apparatus and methodology for providing a precision laser adjustable (e.g., trimmable) thin film capacitor array. A plurality of individual capacitors are formed on a common substrate and connected together in parallel by way of fusible links. The individual capacitors are provided as laddered capacitance value capacitors such that a plurality of lower valued capacitors corresponding to the lower steps of the ladder, and lesser numbers of capacitors, including a single capacitor, for successive steps of the ladder, are provided. Precision capacitance values can be achieved by either of fusing or ablating selected of the fusible links so as to remove the selected subcomponents from the parallel connection. In-situ live-trimming of selected fusible links may be performed after placement of the capacitor array on a hosting printed circuit board.
Public/Granted literature
- US20160343508A1 METHOD FOR LASER ADJUSTABLE THIN FILM CAPACITORS Public/Granted day:2016-11-24
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