Process for producing a surface gate of an integrated electro-chemical sensor, consisting of a field-effect transistor sensitive to alkaline-earth species and sensor obtained
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United States of America Patent
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Sep 27, 1994
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N/A
app pub date -
May 6, 1993
filing date -
Sep 14, 1990
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Expired
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Abstract
A process for producing a surface gate comprising a selective membrane for an integrated chemical sensor comprising a field effect transistor, and the integrated chemical sensor thus produced, wherein the surface gate is particularly sensitive to alkaline-earth species, and more particularly, sensitive to the calcium ion. The process comprises forming grafts on the surface gate, and making the grafts operative utilizing phosphonate-based, iono-sensitive molecules.
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