Invention Application
WO2007106642A3 METHOD FOR FORMING EMBEDDED CAPACITORS ON A PRINTED CIRCUIT BOARD, AND RESULTANT PRINTED CIRCUIT BOARD 审中-公开
在印刷电路板上形成嵌入式电容器的方法以及印刷电路板

METHOD FOR FORMING EMBEDDED CAPACITORS ON A PRINTED CIRCUIT BOARD, AND RESULTANT PRINTED CIRCUIT BOARD
Abstract:
A method for forming embedded capacitors on a printed circuit board is disclosed. The capacitor is formed on the printed circuit board by a depositing a first dielectric layer over one or more electrodes situated on the PCB. Another electrode is formed on top of the first dielectric layer and a second dielectric layer is deposited on top of that electrode. A third electrode is formed on top of the second dielectric layer. The two dielectric layers are abrasively delineated in a single step by a method such as sand blasting to define portions of the first and second dielectric layers to create a multilayer capacitive structure.
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