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Integrated type sensor and production thereof

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专利汇可以提供Integrated type sensor and production thereof专利检索,专利查询,专利分析的服务。并且PURPOSE: To allow the mass production of integration type biosensors which are integrated by joining the sensors of the same kinds or different kinds to each other on the rear surface of a substrate.
CONSTITUTION: The integration type sensor is constituted by joining the sensors of the same kinds or the different kinds to each other on the rear surface of the substrate by combining, for example, plural enzyme electrodes 18 or oxygen electrodes 16. Namely, a wafer is immersed into an aq. soln. of 50% HF:40% NH
4 F=1:6 after the end of anisotropic etching to remove the SiO
2 film used at the time of the etching. The wafer is then throughly washed with boiled pure water after washing for 5 minutes in the soln. of H
2 SO
4 :H
2 O
2 =2:1 to impart hydrophilicity to an Si substrate and to adhere a hydroxyl group (OH, etc.) to the Si atom on the surface. The H
2 O is taken by the dehydration condensation reaction of 20H→O+H
2 O when the wafer is heated for 3 hours at 1000°C in an N
2 atmosphere in the state in which the OH groups attract to each other. The secure joining of Si-O-Si is thus executed. Thus, the crosstalks between the sensor phases are eliminated and the small-sized integration sensors are easily produced in a large quantity.
COPYRIGHT: (C)1991,JPO&Japio,下面是Integrated type sensor and production thereof专利的具体信息内容。

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