发明名称 |
SEMICONDUCTOR WIRE-ARRAY VARACTOR STRUCTURES |
摘要 |
Semiconductor variable capacitor (varactor) devices are provided, which are formed with an array of radial p-n junction structures to provide improved dynamic range and sensitivity. For example, a semiconductor varactor device includes a doped semiconductor substrate having first and second opposing surfaces and an array of pillar structures formed on the first surface of the doped semiconductor substrate. Each pillar structure includes a radial p-n junction structure. A first metallic contact layer is conformally formed over the array of pillar structures on the first surface of the doped semiconductor substrate. A second metallic contact layer formed on the second surface of the doped semiconductor substrate. An insulating layer is formed on the doped semiconductor substrate surrounding the array of pillar structures.
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申请公布号 |
US2013313683(A1) |
申请公布日期 |
2013.11.28 |
申请号 |
US201213479871 |
申请日期 |
2012.05.24 |
申请人 |
GUNAWAN OKI;MAJUMDAR AMLAN;SAENGER KATHERINE L.;INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
GUNAWAN OKI;MAJUMDAR AMLAN;SAENGER KATHERINE L. |
分类号 |
H01L29/93 |
主分类号 |
H01L29/93 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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