US4374394A
Expired / Lapsed
US
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Monolithic integrated circuit
Assignee: Lockheed Martin Corp
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Filing: 1980-10-01
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Granted: 1983-02-15
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Expires: 2000-10-01
Abstract
Abstract A monolithic integrated circuit comprises a substrate having first and second opposing major surfaces. A semiconductor device is at the first major surface, a circuit film pattern is on the second major surface, and means for interconnecting the device to the film pattern are provided. On the first surface, a metallization layer surrounds the device and has a thickness greater than the height of the device from the first surface. Additionally, an electrode extension projects from the device to a height substantially equal to the thickness of the metallization layer.
Inventors
- 👤 Raymond L. Camisa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:50
CPC Classifications
H; H10; H10W; H10W44/00; H10W44/20; H10W70/00; H10W70/60; H10W70/62; H10W70/63; H10W70/635; H10W70/67; H10W70/69; H10W70/698
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
87 words
A monolithic integrated circuit, comprising: a substrate having first and second opposing major surfaces; a semiconductor device on the first major surface, a circuit film pattern on the second surface, and means for interconnecting the device to the film pattern; a metallization layer on the first surface, said layer surrounding the device and having a thickness greater than the height of the device from the first surface; and an electrode extension projecting from the device to a height substantially equal to the thickness of the metallization layer.
Claim 2
Dependent Claim
87 words
A monolithic integrated circuit, comprising: a substrate having first and second opposing major surfaces; a semiconductor device on the first major surface, a circuit film pattern on the second surface, and means for interconnecting the device to the film pattern; a metallization layer on the first surface, said layer surrounding the device and having a thickness greater than the height of the device from the first surface; and an electrode extension projecting from the device to a height substantially equal to the thickness of the metallization layer.
Claim 3
Dependent Claim
22 words
A circuit in accordance with claim 1, further comprising: a heat sink, to which the metallization layer and electrode extension are bonded.
Claim 4
Dependent Claim
15 words
A circuit in accordance with claim 1, wherein: the substrate is a compound semiconductor material.
Claim 5
Dependent Claim
17 words
A circuit in accordance with claim 1, wherein: the circuit film pattern includes a distributed transmission line.
Claim 6
Dependent Claim
21 words
A circuit in accordance with claim 1, wherein: the semiconductor device is disposed in a mesa on the first major surface.
Claim 7
Dependent Claim
26 words
A circuit in accordance with claim 1, wherein: the means for interconnecting the device to the film pattern comprises an electrically conducting passageway through the substrate.
Claim 8
Dependent Claim
16 words
A circuit in accordance with claim 6, wherein: the conducting passageway is a metallized via hole.
Claim 9
Dependent Claim
24 words
A circuit in accordance with claims 1 or 7, wherein: the semiconductor device comprises a field effect transistor having source, gate and drain electrodes.
Claim 10
Dependent Claim
33 words
A circuit in accordance with claim 8, wherein: the gate and drain electrodes are interconnected with the circuit film pattern on the second surface; and the electrode extension projects from the source electrode.
References Cited (Backward Citations)
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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) | 1986-02-14 | 1986-08-16 | 1987-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-02-14 | 1990-08-16 | 1991-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-02-14 | 1994-08-16 | 1995-02-15 | $7700.00 | Window Closed / Lapsed |