发明名称 |
Method for forming microelectronic assembly |
摘要 |
A microelectronic assembly and a method for forming the same are provided. The method includes forming first and second lateral etch stop walls in a semiconductor substrate having first and second opposing surfaces. An inductor is formed on the first surface of the semiconductor substrate and a hole is formed through the second surface of the substrate to expose the substrate between the first and second lateral etch stop walls. The substrate is isotropically etched between the first and second lateral etch stop walls through the etch hole to create a cavity within the semiconductor substrate. A sealing layer is formed over the etch hole to seal the cavity.
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申请公布号 |
US7425485(B2) |
申请公布日期 |
2008.09.16 |
申请号 |
US20050239986 |
申请日期 |
2005.09.30 |
申请人 |
FREESCALE SEMICONDUCTOR, INC. |
发明人 |
GOGOI BISHNU P. |
分类号 |
H01L21/8234 |
主分类号 |
H01L21/8234 |
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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