US4880979A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Infrared ray detector
Assignee: Mitsubishi Electric Corp
•
Filing: 1988-02-23
•
Granted: 1989-11-14
•
Expires: 2008-02-23
Abstract
Abstract An infrared ray detector includes, an infrared ray detection element farbicated in a water which is produced by growing a semiconductor responsive to infrared ray on a high resistance substrate, a metal submount provided with two lead terminals insulated from each other, to which submount the infrared ray detection element is mechanically fixed, an adiabatic vacuum vessel for containing and cooling the infrared ray detection element, to which vessel the metal submount is mechanically fixed, the infrared ray detection element and the metal submount. The metal submount and the adiabatic vacuum vessel are respectively adhered to each other by solder.
Inventors
- 👤 Yasuaki Yoshida
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 10:20
CPC Classifications
H; H10; H10F; H10F77/00; H10F77/60; G; G01; G01J; G01J5/00; G01J5/10; G01J5/28; G01J2005/283; G01J2005/286; G01J5/02; G01J5/06; G01J5/061
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
102 words
An infrared detector comprising: a semiconductor infrared ray detection element disposed on a high resistivity substrate for generating an electrical signal at a pair of electrical terminals in response to incident infrared rays; and a metal submount including a metal plate, two electrical lead terminals electrically insulated from each other and from said plate, said plate containing at least one hole for provisionally mounting the submount on a dewar with a fastener passing through the hole, wherein said element is soldered to said plate and the electrical terminals of said element are respectively electrically connected to the lead terminals of said submount.
Claim 2
Dependent Claim
102 words
An infrared detector comprising: a semiconductor infrared ray detection element disposed on a high resistivity substrate for generating an electrical signal at a pair of electrical terminals in response to incident infrared rays; and a metal submount including a metal plate, two electrical lead terminals electrically insulated from each other and from said plate, said plate containing at least one hole for provisionally mounting the submount on a dewar with a fastener passing through the hole, wherein said element is soldered to said plate and the electrical terminals of said element are respectively electrically connected to the lead terminals of said submount.
Claim 3
Dependent Claim
21 words
The infrared ray detector of claim 6 wherein said lead terminals are electrically insulated from said plate by a ceramic material.
Claim 4
Dependent Claim
24 words
The infrared ray detector of claim 6 wherein said infrared ray detector element is soldered to said submount with a low melting point solder.
Claim 5
Dependent Claim
28 words
The infrared ray detector of claim 1 including a dewar and a screw passing through said hole and engaging the dewar, provisionally mounting said element on said dewar.
Claim 6
Dependent Claim
19 words
The infrared ray detector of claim claim 1 including a dewar wherein said submount is soldered to said dewar.
Claim 7
Dependent Claim
15 words
The infrared ray detector of claim 1 wherein said metal submount comprises a fernico alloy.
Claim 8
Dependent Claim
16 words
The infrared ray detector of claim 6, wherein said metal submount comprises a copper tungsten alloy.
Claim 9
Dependent Claim
27 words
The infrared ray detector of claim 1 wherein said submount contains two holes for provisionally mounting the submount on a dewar with fasteners passing through the holes.
Claim 10
Dependent Claim
15 words
The infrared ray detector of claim 3 wherein said solder is an indium alloy solder.
Claim 11
Dependent Claim
15 words
The infrared ray detector of claim 3 wherein said solder is a bismuth alloy solder.
References Cited (Backward Citations)
GB1310766A
Cited
GB1278444A
Cited
US4412427A
Cited
JPS5724580A
Cited
JPS5762569A
Cited
JPS5773637A
Cited
JPS57157123A
Cited
GB2110469A
Cited
EP0102262A1
Cited
US4540115A
Cited
GB2148015A
Cited
GB2178595A
Cited
GB2186741A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-11-13 | 1993-05-15 | 1993-11-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-11-13 | 1997-05-15 | 1997-11-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-11-13 | 2001-05-15 | 2001-11-14 | $7700.00 | Window Closed / Lapsed |