发明授权
- 专利标题: Printed circuit board capacitor structure and method
- 专利标题(中): 印刷电路板电容器结构及方法
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申请号: US09186583申请日: 1998-11-05
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公开(公告)号: US06215649B1公开(公告)日: 2001-04-10
- 发明人: Bernd K. Appelt , John M. Lauffer
- 申请人: Bernd K. Appelt , John M. Lauffer
- 主分类号: H01G420
- IPC分类号: H01G420
摘要:
A capacitive element for a circuit board or chip carrier having improved capacitance and method of manufacturing the same is provided. The structure is formed from a pair of conductive sheets having a dielectric component laminated therebetween. The dielectric component is formed of two or more dielectric sheets at least one of which can be partially cured or softened followed by being fully cured or hardened. The lamination takes place by laminating a partially cured or softened sheet to at least one other sheet of dielectric material and one of the sheets of conductive material. The total thickness of the two sheets of the dielectric component does not exceed about 4 mils and preferably does not exceed about 3 mils; thus the single dielectric sheets does not exceed about 2 mils and preferably does not exceed about 1.5 mils in thickness. The use of two or more sheets of dielectric material makes it very unlikely that two or more defects in the sheets of dielectric material will align thus greatly reducing the probability of a defect causing a failure in test or field use.
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