EP0149317A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Circuit packaging
Assignee: STC PLC
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Filing: 1984-11-15
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Granted: —
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Expires: 2004-11-15
Abstract
Abstract O In a circuit assembly a plurality of devices (16) are disposed on a common laminar carrier (11) and are covered with a layer (12, 17) of an insulating material. Metallised interconnect tracks are provided on the layer (12, 17) between the devices.
Inventors
- 👤 John Stuart Heeks
- 👤 Joseph Mun
- 👤 Richard Gordon Plumb
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-27 06:57
CPC Classifications
H; H10; H10F; H10F77/00; H10F77/50; H10W; H10W70/00; H10W70/099; H10W70/60; H10W70/611; H10W70/614; H10W70/67; H10W70/68; H10W70/685; H10W90/00; H10W70/682
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
58 words
A circuit assembly, including a laminar carrier, a plurality of semiconductor devices disposed on the chip carrier, one or more layers of an insulating material covering said devices, characterised in that said insulating material provides a planar surface over said devices, and that one or more metallisation layers are provided on said surface whereby said devices are interconnected.
Claim 2
Dependent Claim
58 words
A circuit assembly, including a laminar carrier, a plurality of semiconductor devices disposed on the chip carrier, one or more layers of an insulating material covering said devices, characterised in that said insulating material provides a planar surface over said devices, and that one or more metallisation layers are provided on said surface whereby said devices are interconnected.
Claim 3
Dependent Claim
16 words
A circuit assembly as claimed in claim 1, characterised in that said carrier is electrically conductive.
Claim 4
Dependent Claim
18 words
A circuit assembly as claimed in claim 1, characterised in that the devices are gallium arsenide integrated circuits.
Claim 5
Dependent Claim
16 words
A circuit assembly as claimed in claim 1, characterised in that said carrier is optically transparent.
Claim 6
Dependent Claim
14 words
A circuit assembly as claimed in claim 4, and including a photodiode/amplifier hybrid combination.
Claim 7
Dependent Claim
15 words
A circuit assembly as claimed in claim 5, and including a gallium indium arsenide photodiode.
Claim 8
Dependent Claim
20 words
A circuit assembly as claimed in claim 6 and including a gallium arsenide MESFET amplifier or a silicon bipolar amplifier.
Claim 9
Dependent Claim
22 words
A circuit assembly as claimed in any one of claims 1 to 7, characterised in that said insulating material is a polyimide.
Claim 10
Independent Claim
58 words
A method of mounting a plurality of circuit devices on a common laminar carrier, the method including covering said devices with a substantially planar layer of an insulating material whereby said devices are secured to the carrier, providing one or more metallised interconnect patterns over the insulating layer, and providing contacts from the interconnect patterns to the devices.
Claim 11
Independent Claim
58 words
A method of mounting a plurality of circuit devices on a common laminar carrier, the method including covering said devices with a substantially planar layer of an insulating material whereby said devices are secured to the carrier, providing one or more metallised interconnect patterns over the insulating layer, and providing contacts from the interconnect patterns to the devices.
Claim 12
Dependent Claim
16 words
A method as claimed in claim 9, characterised in that two layers of metallisation are provided.
Claim 13
Dependent Claim
34 words
A method as claimed in claim 9 or 10, characterised in that said insulating layer comprises lower and upper portions, the lower portion having openings whereby the devices are positioned relative to the carrier.
Claim 14
Dependent Claim
29 words
A method as claimed in claim 9, 10 or 11, characterised in that the assembly is mounted in a package provided with coplanar transmission lines for the input connections.
Claim 15
Dependent Claim
19 words
A method as claimed in claim 12, characterised in that the input connections are terminated each with a resistor.
Claim 16
Dependent Claim
18 words
An optical transmission system incorporating a circuit assembly as claimed in any one of claims 1 to 8.
References Cited (Backward Citations)
No citation records indexed.
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