Patent US3875478A successfully refreshed from Google Patents.
US3875478A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Semiconductor device arrangements
Assignee: US Philips Corp
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Filing: 1973-01-12
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Granted: 1975-04-01
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Expires: 1993-01-12
Abstract
Abstract A semiconductor device for face-bonding on a circuit. The chip is enveloped between a carrier plate and a laminated conductor foil. Conductors of the foil are secured to top electrodes of the chip. Conductive edges of the foil are folded back to provide remote from the plate device-terminal areas for direct connection to contact areas of the circuit. The device may be a power transistor having an emitter-base conductor foil and a copper collector plate with a flying-lead connection to the plate. The emitter and base terminal areas may be nylon-riveted to contact areas of a flexible multiconductor strip.
Inventors
- 👤 John Capstick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:50
CPC Classifications
H; H10; H10W; H10W70/00; H10W70/60; H10W70/67; H10W70/688; H01; H01R; H01R12/00; H01R12/50; H01R12/51; H01R12/55; H01R12/58; H10W72/00; H05; H05K; H05K1/00; H05K1/02; H05K1/03; H05K1/0393; H10W72/071; H10W72/072; H10W72/07231; H10W72/07236
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
239 words
An arrangement of a semiconductor device mounted on a flexible service strip, in which the service strip includes at least two supply conductors, and the semiconductor device comprises a carrier, a semiconductor body secured to and encapsulated on part of the carrier, and a foil secured on the same face of the carrier as the semiconductor body, at least part of which carrier is of metal and provides a terminal connection to an electrode at the major surface of the semiconductor body secured thereto, which foil includes a layer of insulated electrical connection conductors, which connection conductors provide electrical connections between electrodes at the opposite major surface of the semiconductor body and other electrical terminals of the device, at least two of the terminals of the device being present as substantially flat contact areas at a face of the device facing the service strip, at least one of these flat contact area terminals being provided by an exposed part of the connection conductor layer of the foil which overlies a substantially plane part of the carrier surface and faces the service strip, connection areas of the supply conductors being in registration with the said flat contact area terminals of the device facing the service strip, and securing means securing the device against the service strip with the flat contact area terminals of the device in pressure contact with these connections areas of the supply conductors of the service strip.
Claim 2
Dependent Claim
239 words
An arrangement of a semiconductor device mounted on a flexible service strip, in which the service strip includes at least two supply conductors, and the semiconductor device comprises a carrier, a semiconductor body secured to and encapsulated on part of the carrier, and a foil secured on the same face of the carrier as the semiconductor body, at least part of which carrier is of metal and provides a terminal connection to an electrode at the major surface of the semiconductor body secured thereto, which foil includes a layer of insulated electrical connection conductors, which connection conductors provide electrical connections between electrodes at the opposite major surface of the semiconductor body and other electrical terminals of the device, at least two of the terminals of the device being present as substantially flat contact areas at a face of the device facing the service strip, at least one of these flat contact area terminals being provided by an exposed part of the connection conductor layer of the foil which overlies a substantially plane part of the carrier surface and faces the service strip, connection areas of the supply conductors being in registration with the said flat contact area terminals of the device facing the service strip, and securing means securing the device against the service strip with the flat contact area terminals of the device in pressure contact with these connections areas of the supply conductors of the service strip.
Claim 3
Dependent Claim
88 words
An arrangement as claimed in claim 1, in which the service strip and the foil and carrier of the device are apertured to provide holes in the connection areas of the service strip in registration with holes in the flat contact area terminals of the device, and the said securing means pass from the said opposite face of the device through the said holes to the face of the service strip opposite the device to secure the device and its flat contact area terminals to the service strip.
Claim 4
Dependent Claim
29 words
An arrangement as claimed in claim 2, in which the said holes in the flat contact area terminals of the device are provided towards opposite ends of the device.
Claim 5
Dependent Claim
15 words
An arrangement as claimed in claim 2, in which the said securing means are rivets.
Claim 6
Dependent Claim
15 words
An arrangement as claimed in claim 4, in which the rivets have a snap-fit fastening.
Claim 7
Dependent Claim
20 words
An arrangement as claimed in claim 4, in which the rivets are hollow and form eyelets for the said holes.
Claim 8
Dependent Claim
42 words
An arrangement as claimed in claim 2, in which an insulating coating is present on the supply conductors of the service strip, and the said connection areas are present at exposed portions of the supply conductors at windows in the insulating coating.
Claim 9
Dependent Claim
67 words
An arrangement as claimed in claim 7, in which corresponding holes in the connections areas of the service strip are provided with eyelets through which the said securing means pass, and each of these service strip eyelets is in electrical connection with a supply conductor, provides the connection area of that supply conductor and is insulated from the other supply conductor or conductors of the service strip.
Claim 10
Dependent Claim
57 words
An arrangement as claimed in claim 8, in which the supply conductors are present at opposite major surfaces of the service strip, and one of the service strip eyelets forms an electrical feed-through from the major surface of the service strip facing the device to a supply conductor at the opposite major surface of the service strip.
Claim 11
Dependent Claim
28 words
An arrangement as claimed in claim 8, in which the rim of each service strip eyelet facing a flat contact area terminal of the device is substantially flat.
Claim 12
Dependent Claim
29 words
An arrangement as claimed in claim 8, in which a sealing ring is providEd between the device and the service strip, around the rim of each service strip eyelet.
Claim 13
Dependent Claim
56 words
An arrangement as claimed in claim 1, in which the semiconductor device is a transistor, the carrier forms a collector connection to the major surface of the body secured thereto, and the foil includes emitter and base connection conductors which are connected to emitter and base electrodes at the opposite major surface of the semiconductor body.
Claim 14
Dependent Claim
50 words
An arrangement as claimed in claim 12, in which the two flat contact area terminals at the face of the transistor facing the service strip are emitter and base contact areas of the foil lead pattern, and the carrier has a collector terminal at the opposite face of the transistor.
Claim 15
Dependent Claim
36 words
An arrangement as claimed in claim 13, in which a securement hole in the emitter contact area of the foil has a different shape and/or size from that in the base contact area of the foil.
Claim 16
Dependent Claim
61 words
An arrangement as claimed in claim 13, in which the flat emitter contact area terminal is electrically connected to a main current supply conductor of the service strip and the flat base contact area terminal is electrically connected to a control conductor of the service strip for controlling the main current flow through the transistor between the emitter and collector terminals.
Claim 17
Dependent Claim
84 words
An arrangement as claimed in claim 12, in which part of the carrier is free of the foil and faces the service strip to provide a substantially flat collector contact area terminal of the transistor, and a terminal connector is secured through and insulated from the carrier, is in electrical connection with the emitter connection conductor of the foil at one major surface of the carrier and protrudes from the opposite major surface of the carrier to provide the emitter terminal of the transistor.
Claim 18
Dependent Claim
61 words
An arrangement as claimed in claim 16, in which the flat collector contact area terminal is electrically connected to a main current supply conductor of the service strip and the flat base contact area terminal is electrically connected to a control conductor of the service strip for controlling the main current flow through the transistor between the collector and emitter terminals.
Claim 19
Dependent Claim
101 words
An arrangement as claimed in claim 15, in which the service strip includes a plurality of control conductors and a common main-current supply conductor which extend in the longitudinal direction of the service strip, each control conductor having provision for electrical connection to the flat base contact area terminal of a transistor which is associated with this control conductor and which has its emitter and collector terminals connected between the common main-current supply conductor and a load whereby the current to each load can be controlled by a signal on the control conductor associated with the transistor connected to that load.
Claim 20
Dependent Claim
32 words
An arrangement as claimed in claim 18, in which the service strip is a wiring harness of a vehicle, at least one of the loads being an electric light of the vehicle.
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) | 1978-03-31 | 1978-09-30 | 1979-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-31 | 1982-09-30 | 1983-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-31 | 1986-09-30 | 1987-04-01 | $7700.00 | Window Closed / Lapsed |