US4009516A
Expired / Lapsed
US
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Pyroelectric detector fabrication
Assignee: Honeywell Inc
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Filing: 1976-03-29
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Granted: 1977-03-01
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Expires: 1996-03-29
Abstract
Abstract Pyroelectric detectors are mounted on a substrate having a plurality of wax-filled cavities. The wax is then dissolved to provide a low thermal loss mounting structure for the detectors.
Inventors
- 👤 Alice M. Chiang
- 👤 Brian W. Denley
- 👤 Richard L. Schapker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:42
CPC Classifications
G; G01; G01J; G01J5/00; G01J5/10; G01J5/34; H; H10; H10N; H10N15/00; H10N15/10; Y; Y10; Y10T; Y10T29/00; Y10T29/42; Y10T29/49; Y10T29/49002; Y10T29/4981; Y10T29/49812
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
92 words
A method of fabricating a pyroelectric detector, the method comprising: providing a substrate of a first material, the substrate having first and second surfaces and a cavity therein; mounting a pyroelectric body on the first surface of the substrate with a first portion of the body in contact with the substrate and a second portion extending over the cavity; filling the cavity with a second material; processing the pyroelectric body, after filling the cavity, to form a pyroelectric detector; and removing the second material from the cavity after processing the pyroelectric body.
Claim 2
Independent Claim
92 words
A method of fabricating a pyroelectric detector, the method comprising: providing a substrate of a first material, the substrate having first and second surfaces and a cavity therein; mounting a pyroelectric body on the first surface of the substrate with a first portion of the body in contact with the substrate and a second portion extending over the cavity; filling the cavity with a second material; processing the pyroelectric body, after filling the cavity, to form a pyroelectric detector; and removing the second material from the cavity after processing the pyroelectric body.
Claim 3
Dependent Claim
25 words
The method of claim 1 wherein the area of the first portion of the body is much less than the area of the second portion.
Claim 4
Dependent Claim
12 words
The method of claim 1 wherein the second material is a wax.
Claim 5
Dependent Claim
25 words
The method of claim 3 wherein removing the second material comprises dissolving the second material in a solvent which does not affect the first material.
Claim 6
Dependent Claim
13 words
The method of claim 4 wherein the second material is glycol phylate wax.
Claim 7
Dependent Claim
10 words
The method of claim 5 wherein the solvent is acetone.
Claim 8
Dependent Claim
23 words
The method of claim 1 and further comprising: forming an electrode layer on a first surface of the pyroelectric body prior to mounting.
Claim 9
Dependent Claim
51 words
The method of claim 7 and further comprising forming an electrode layer on the first surface of the substrate, whereby the electrode layer on the first surface of the pyroelectric body is in contact with the electrode layer on the first surface of the substrate when the pyroelectric body is mounted.
Claim 10
Dependent Claim
20 words
The method of claim 7 wherein processing the pyroelectric body comprises: reducing the pyroelectric body to a final desired thickness.
Claim 11
Dependent Claim
36 words
The method of claim 9 wherein processing the pyroelectric body further comprises: forming an electrode on a second surface of the pyroelectric body after reducing the thickness of the pyroelectric body to the final desired thickness.
Claim 12
Independent Claim
86 words
A method of batch fabricating pyroelectric detectors, the method comprising: providing a substrate of a first material, the substrate having first and second surfaces and a plurality of cavities therein; mounting a pyroelectric body on the first surface; filling the plurality of openings with a second material; delineating individual pyroelectric detector elements whereby each detector element has a first portion in contact with the substrate and a second portion extending over one of the plurality of filled cavities; and removing the second material from the cavities.
Claim 13
Independent Claim
86 words
A method of batch fabricating pyroelectric detectors, the method comprising: providing a substrate of a first material, the substrate having first and second surfaces and a plurality of cavities therein; mounting a pyroelectric body on the first surface; filling the plurality of openings with a second material; delineating individual pyroelectric detector elements whereby each detector element has a first portion in contact with the substrate and a second portion extending over one of the plurality of filled cavities; and removing the second material from the cavities.
Claim 14
Dependent Claim
13 words
The method of claim 11 and further comprising separating the individual detector elements.
Claim 15
Dependent Claim
12 words
The method of claim 11 wherein the second material is a wax.
Claim 16
Dependent Claim
25 words
The method of claim 11 wherein removing the second material comprises dissolving the second material in a solvent which does not affect the first material.
Claim 17
Dependent Claim
13 words
The method of claim 14 wherein the second material is glycol phylate wax.
Claim 18
Dependent Claim
10 words
The method of claim 15 wherein the solvent is acetone.
Claim 19
Dependent Claim
23 words
The method of claim 11 and further comprising: forming an electrode layer on a first surface of the pyroelectric body prior to mounting.
Claim 20
Dependent Claim
19 words
The method of claim 11 and further comprising: reducing the pyroelectric body to a final desired thickness after mounting.
Claim 21
Dependent Claim
32 words
The method of claim 18 and further comprising: forming an electrode on a second surface of the pyroelectric body after reducing the thickness of the pyroelectric body to the final desired thickness.
Claim 22
Independent Claim
74 words
A method of fabricating a pyroelectric detector, the method comprising: providing a substrate of a first material, the substrate having first and second surfaces and a cavity therein; filling the cavity with a second material; mounting a pyroelectric body on the first surface of the substrate with a first portion of the body in contact with the substrate and a second portion extending of the filled cavity; removing the second material from the cavity.
Claim 23
Independent Claim
74 words
A method of fabricating a pyroelectric detector, the method comprising: providing a substrate of a first material, the substrate having first and second surfaces and a cavity therein; filling the cavity with a second material; mounting a pyroelectric body on the first surface of the substrate with a first portion of the body in contact with the substrate and a second portion extending of the filled cavity; removing the second material from the cavity.
Claim 24
Independent Claim
86 words
A method of batch fabricating pyroelectric detectors, the method comprising: providing a substrate of a first material, the substrate having first and second surfaces and a plurality of cavities therein; filling the plurality of openings with a second material; mounting a pyroelectric body on the first surface; delineating individual pyroelectric detector elements whereby each detector element has a first portion in contact with the substrate and a second portion extending over one of the plurality of filled cavities; and removing the second material from the cavities.
Claim 25
Independent Claim
86 words
A method of batch fabricating pyroelectric detectors, the method comprising: providing a substrate of a first material, the substrate having first and second surfaces and a plurality of cavities therein; filling the plurality of openings with a second material; mounting a pyroelectric body on the first surface; delineating individual pyroelectric detector elements whereby each detector element has a first portion in contact with the substrate and a second portion extending over one of the plurality of filled cavities; and removing the second material from the cavities.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-02-29 | 1980-08-30 | 1981-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-02-29 | 1984-08-30 | 1985-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-02-29 | 1988-08-30 | 1989-03-01 | $7700.00 | Window Closed / Lapsed |