发明名称 |
Examination apparatus for biological sample and chemical sample |
摘要 |
<p>A wireless sensor chip suitable for the compact, high-sensitive, and low-cost examination apparatus for easily examining a biological material such as gene at low cost is provided. A sensor chip is formed on an SOI substrate, and an n-type semiconductor layer on which a pMOS transistor is formed and a p-type semiconductor layer on which an nMOS transistor is formed are isolated by a pn junction. Therefore, the p-type semiconductor layer at the outermost portion (chip edge portion to be in contact with solution) is set to floating, and the maximum potential and the minimum potential of the chip are supplied to an n-type semiconductor layer and a p-type semiconductor layer inside the outermost portion, respectively. Also, the chip is covered with an ion impermeable insulating film for reducing the penetration of positive ions through the oxide layer.
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申请公布号 |
EP1950808(A3) |
申请公布日期 |
2008.09.17 |
申请号 |
EP20080007071 |
申请日期 |
2004.09.03 |
申请人 |
HITACHI, LTD. |
发明人 |
YAZAWA, YOSHIAKI;WATANABE, KAZUKI;KAMAHORI, MASAO;KUNIMOTO, YUKINORI |
分类号 |
G01N27/414;H01L27/12;H01L21/768;H01L21/822;H01L21/8238;H01L23/522;H01L27/04;H01L27/08;H01L27/092;H01L29/786 |
主分类号 |
G01N27/414 |
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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