US5023455A
Expired / Lapsed
US
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Radiation-sensitive detector array and pre-amplification readout integrated circuit
Assignee: Imec
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Filing: 1989-05-26
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Granted: 1991-06-11
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Expires: 2009-05-26
Abstract
Abstract Included in a device for detecting radiation is an array of radiation-sensitive elements having respective outputs and circuitry for reading the outputs of such elements. The array of radiation-sensitive elements is preferably configured as a matrix of rows and columns of radiation-sensitive elements. Circuitry is provided to consecutively activate the columns; and circuitry is provided to generate a trigger signal depending on the occurrence of an amount of radiation above a threshold value. In this way the identity of a row in which an element is activated can be determined.
Inventors
- 👤 Guy F. R. J. Vanstraelen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:31
CPC Classifications
G; G01; G01T; G01T1/00; G01T1/16; G01T1/17; H; H10; H10F; H10F39/00; H10F39/10; H10F39/103
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
92 words
A device for detecting radiation, comprising: an array formed of rows and columns of elements sensitive to radiation and having respective outputs; enabling means to consecutively enable the columns of radiation sensitive elements; trigger means to generate a trigger signal responsive to the occurrence that an element, in a column which has been enabled, has received an amount of radiation above a threshold value, such that the identity of such element can be ascertained; and reading means responsive to said trigger signal for reading the respective outputs of only such identified elements.
Claim 2
Independent Claim
92 words
A device for detecting radiation, comprising: an array formed of rows and columns of elements sensitive to radiation and having respective outputs; enabling means to consecutively enable the columns of radiation sensitive elements; trigger means to generate a trigger signal responsive to the occurrence that an element, in a column which has been enabled, has received an amount of radiation above a threshold value, such that the identity of such element can be ascertained; and reading means responsive to said trigger signal for reading the respective outputs of only such identified elements.
Claim 3
Dependent Claim
21 words
The device of claim 1, wherein the radiation-sensitive elements and the reading means are formed in a monolithic CMOS integrated circuit.
Claim 4
Dependent Claim
43 words
The device of claim 2, wherein: the radiation-sensitive elements and the reading means are formed on a common, high resistivity substrate; and the substrate is arranged to be substantially depleted upon application of a bias voltage between the substrate and the radiation-sensitive elements.
Claim 5
Dependent Claim
24 words
The device of claim 2, wherein the monolithic CMOS integrated circuit also includes analog amplifiers for amplifying signals from the outputs of the elements.
Claim 6
Dependent Claim
24 words
The device of claim 3, wherein the monolithic CMOS integrated circuit also includes analog amplifiers for amplifying signals from the outputs of the elements.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-06-10 | 1994-12-10 | 1995-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-06-10 | 1998-12-10 | 1999-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-06-10 | 2002-12-10 | 2003-06-11 | $7700.00 | Window Closed / Lapsed |