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Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0100310 (1998-06-19) |
발명자 / 주소 |
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출원인 / 주소 |
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대리인 / 주소 |
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인용정보 | 피인용 횟수 : 740 인용 특허 : 26 |
An implantable substrate sensor has electronic circuitry and electrodes formed on opposite sides of a substrate. A protective coating covers the substrate, effectively hermetically sealing the electronic circuitry under the coating. Exposed areas of the electrodes are selectively left uncovered by t
An implantable substrate sensor has electronic circuitry and electrodes formed on opposite sides of a substrate. A protective coating covers the substrate, effectively hermetically sealing the electronic circuitry under the coating. Exposed areas of the electrodes are selectively left uncovered by the protective coating, thereby allowing such electrodes to be exposed to body tissue and fluids when the sensor is implanted in living tissue. The substrate on which the electronic circuitry and electrodes are formed is the same substrate or "chip" on which an integrated circuit (IC) is formed, which integrated circuit contains the desired electronic circuitry. Such approach eliminates the need for an hermetically sealed lid or cover to cover hybrid electronic circuitry, and allows the sensor to be made much thinner than would otherwise be possible. In one embodiment, two such substrate sensors may be placed back-to-back, with the electrodes facing outward. As required, capacitors that form part of the sensor's electronic circuits are formed on the substrate by placing metalization layers and a dielectric in vacant areas of the substrate surface.
[ What is claimed is:] [9.]9. A substrate sensor for immersion or implantation in a saline solution comprising:a semiconductor substrate having front, back, and side surfaces;at least one working electrode formed on the front side of the semiconductor substrate;electronic circuitry formed on the bac
[ What is claimed is:] [9.]9. A substrate sensor for immersion or implantation in a saline solution comprising:a semiconductor substrate having front, back, and side surfaces;at least one working electrode formed on the front side of the semiconductor substrate;electronic circuitry formed on the back side of the semiconductor substrate;a via that passes through the semiconductor substrate and electrically connects the at least one working electrode with the electronic circuitry;means for coupling operating signals with the electronic circuitry; anda protective coating, for enabling the sensor to be implanted in living tissue, that covers all surfaces of the semiconductor substrate with a biocompatible protective layer except for selected portions of the at least one working electrode and selected portions of said means for coupling operating signals to the electronic circuitry.
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