Thick film thermistor and method of manufacture
First Claim
Patent Images
1. A thick film thermistor comprising:
- (a) a pair of shaped electrical conductors deposited on a first support substrate;
(b) a temperature sensitive ink layer deposited over the pair of electrical conductors so that the ink layer is coextensive with the pair of electrical conductors; and
(c) a second support substrate bonded to the first support substrate.
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Abstract
The design of a thermistor maximizes the temperature sensitive effects of the semiconductive inks while minimizing or eliminating the force sensitive effects. The design provides for an integrated force and temperature sensor having reduced costs, improved sensitivity and reproducibility, and greater reliability. A thick film thermistor has (a) a pair of shaped electrical conductors deposited on a first support substrate; (b) a temperature sensitive ink layer deposited over the pair of electrical conductors so that the ink layer is coextensive with the pair of electrical conductors; and (c) a second support substrate bonded to the first support substrate.
16 Citations
28 Claims
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1. A thick film thermistor comprising:
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(a) a pair of shaped electrical conductors deposited on a first support substrate;
(b) a temperature sensitive ink layer deposited over the pair of electrical conductors so that the ink layer is coextensive with the pair of electrical conductors; and
(c) a second support substrate bonded to the first support substrate. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method of manufacturing a thick film thermistor, comprising the steps of:
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(a) depositing a pair of shaped electrical conductors on a first support substrate;
(b) depositing a temperature sensitive ink layer over the pair of electrical conductors so that the ink layer is coextensive with the pair of electrical conductors; and
(c) bonding a second support substrate to the first support substrate. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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18. A thick film thermistor, comprising:
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(a) a pair of shaped thermistor electrical conductors deposited on a first support substrate;
(b) a first shaped force sensor electrical conductor deposited on the first support substrate;
(c) a second shaped force sensor electrical conductor deposited on a second support substrate, the second shaped force sensor electrical conductor forming a mirror image of the first shaped force sensor electrical conductor;
(d) a first force and temperature sensitive ink layer deposited over the pair of shaped thermistor electrical conductors so that the ink layer is coextensive with the pair of thermistor electrical conductors;
(e) a second force and temperature sensitive ink layer deposited over the first shaped force sensor electrical conductor so that the ink layer is coextensive with the first shaped force sensor electrical conductor;
(f) a third force and temperature sensitive ink layer deposited over the second shaped force sensor electrical conductor so that the ink layer is coextensive with the second shaped force sensor electrical conductor; and
(g) the second support substrate being bonded to the first support substrate so that the second sensitive ink layer is coextensive with the third sensitive ink layer, and the first shaped force sensor electrical conductor is aligned in a mirror image manner with the second shaped force sensor electrical conductor. - View Dependent Claims (19, 20, 21, 22, 23)
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24. A method of manufacturing a thick film thermistor, comprising the steps of:
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(a) depositing a pair of shaped thermistor electrical conductors on a first support substrate;
(b) depositing a first shaped force sensor electrical conductor on the first support substrate;
(c) depositing a second shaped force sensor electrical conductor on a second support substrate, the second shaped force sensor electrical conductor forming a mirror image of the first shaped force sensor electrical conductor;
(d) depositing a first force and temperature sensitive ink layer over the pair of shaped thermistor electrical conductors so that the ink layer is coextensive with the pair of thermistor electrical conductors;
(e) depositing a second force and temperature sensitive ink layer over the first shaped force sensor electrical conductor so that the ink layer is coextensive with the first shaped force sensor electrical conductor;
(f) depositing a third force and temperature sensitive ink layer over the second shaped force sensor electrical conductor so that the ink layer is coextensive with the second shaped force sensor electrical conductor; and
(g) bonding the second support substrate to the first support substrate so that the second ink layer is coextensive with the third sensitive ink layer, and the first shaped force sensor electrical conductor is aligned in a mirror image manner with the second shaped force sensor electrical conductor. - View Dependent Claims (25, 26, 27, 28)
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Specification