Backside stimulated sensor with background current manipulation
First Claim
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1. A CMOS (Complementary Metal Oxide Semiconductor) pixel for sensing at least one selected from a biological, chemical, ionic, electrical, mechanical and magnetic stimulus, comprising:
- a substrate including a backside;
a source coupled with the substrate to generate a background current; and
a detection element electrically coupled with the substrate to measure the background current;
at least one receptor entity having an electrical charge and that is coupled with the backside, wherein the at least one receptor entity is operable to bind to an analyte that is to be exposed to the backside, and wherein the binding of the at least one receptor entity to the analyte is to provide a non-light-emitting stimulus to alter the electrical charge of the at least one receptor entity and is to affect a measurable change in the background current.
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Abstract
A CMOS (Complementary Metal Oxide Semiconductor) pixel for sensing at least one selected from a biological, chemical, ionic, electrical, mechanical and magnetic stimulus. The CMOS pixel includes a substrate including a backside, a source coupled with the substrate to generate a background current, and a detection element electrically coupled to measure the background current. The stimulus, which is to be provided to the backside, affects a measurable change in the background current.
81 Citations
17 Claims
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1. A CMOS (Complementary Metal Oxide Semiconductor) pixel for sensing at least one selected from a biological, chemical, ionic, electrical, mechanical and magnetic stimulus, comprising:
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a substrate including a backside; a source coupled with the substrate to generate a background current; and a detection element electrically coupled with the substrate to measure the background current; at least one receptor entity having an electrical charge and that is coupled with the backside, wherein the at least one receptor entity is operable to bind to an analyte that is to be exposed to the backside, and wherein the binding of the at least one receptor entity to the analyte is to provide a non-light-emitting stimulus to alter the electrical charge of the at least one receptor entity and is to affect a measurable change in the background current. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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Specification