发明授权
- 专利标题: Methods for manufacture a capacitor with three-dimensional high surface area electrodes
- 专利标题(中): 制造具有三维高表面积电极的电容器的方法
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申请号: US12969186申请日: 2010-12-15
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公开(公告)号: US08561271B2公开(公告)日: 2013-10-22
- 发明人: Liang Chai , Alan Rae , James M Wison
- 申请人: Liang Chai , Alan Rae , James M Wison
- 代理机构: Smith Risley
- 代理商 Steven P. Wigmore
- 主分类号: H01G4/10
- IPC分类号: H01G4/10
摘要:
A method for making a capacitor having improved capacitance efficiency which results from increasing the effective area of an electrode surface is disclosed. Specifically, an improved “three-dimensional” capacitor may be constructed with electrode layers having three-dimensional aspects at the point of interface with a dielectric such that portions of the electrode extend into the dielectric layer. Advantageously, embodiments of a three-dimensional capacitor drastically reduce the space footprint that is required in a circuit to accommodate the capacitor, when compared to current capacitor designs. Increased capacitance density may be realized without using high k (high constant) dielectric materials, additional “electrode-dielectric-electrode” arrangements in an ever increasing stack, or serially stringing together multiple capacitors.