US4649460A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Single-in-line integrated electronic component
Assignee: STMicroelectronics SRL
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Filing: 1985-02-13
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Granted: 1987-03-10
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Expires: 2005-02-13
Abstract
Abstract An insulating package premolded on a metallic frame with electrical contacts contains in an inner space a semiconductor chip which rests on a thermic dissipator and is connected to the electrical contacts. The inner space of the package is closed on top by a cover provided with a lateral extension with a bent end, which operates not only as a cover, but also as a means for fastening and thrusting the package toward a support surface.
Inventors
- 👤 Giuseppe Marchisi
- 👤 Carlo C. De Martiis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 08:59
CPC Classifications
H; H10; H10W; H10W76/00; H10W76/10; H10W76/12; H10W76/13; H10W76/134; H10W40/00; H10W40/20; H10W40/22; H10W40/60; H10W40/611; H10W40/231; H10W40/235; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49117; Y10T29/49121
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
103 words
A single-in-line integrated electronic component comprising: a metallic frame provided with electric contacts, an insulating package molded on said metallic frame to form an inner space, a heat dissipator at the bottom of said inner space, a semiconductor chip mounted on said heat dissipator in said inner space and electrically connected to said contacts, and an insulating cover arranged at the top of said inner space and provided with a lateral extension having a turned end flush with the package bottom and at least one bore for the passage of a fastening means for the fastening of the component to a support surface.
Claim 2
Dependent Claim
103 words
A single-in-line integrated electronic component comprising: a metallic frame provided with electric contacts, an insulating package molded on said metallic frame to form an inner space, a heat dissipator at the bottom of said inner space, a semiconductor chip mounted on said heat dissipator in said inner space and electrically connected to said contacts, and an insulating cover arranged at the top of said inner space and provided with a lateral extension having a turned end flush with the package bottom and at least one bore for the passage of a fastening means for the fastening of the component to a support surface.
Claim 3
Dependent Claim
246 words
A single-in-line electronic component comprising: (a) a metallic frame including a plurality of conducting strips parallel to one another over a portion of their length, said conducting strips being connected to one another at some point along their length; (b) an insulating package premolded to said metallic frame so that said package forms a box-like structure with an open inner space; (c) a heat dissipator located near the bottom of said inner space and connected to said package so as to close the bottom of said inner space and also connected so that when said insulating package is pushed downward against a plane, said dissipator is securely pushed flush against said plane; (d) a semiconductor chip mounted on said heat dissipator and electrically connected to said metallic frame such that said conducting strips are capable of acting as conductors between said chip and external contacts to which said chip may be connected; (e) an insulating cover located near the top of said inner space and connected near to the top of said insulating package, said cover, (1) including lateral extension means, adapted for connection to an external surface so that connection of said extension means to said external surface causes said insulating cover means to push said insulating package and thus said heat dissipator against said surface, (2) being connected to said insulating package so that attempting to push said cover downward against a plane also causes said insulating package to be pushed toward said plane.
Claim 4
Dependent Claim
246 words
A single-in-line electronic component comprising: (a) a metallic frame including a plurality of conducting strips parallel to one another over a portion of their length, said conducting strips being connected to one another at some point along their length; (b) an insulating package premolded to said metallic frame so that said package forms a box-like structure with an open inner space; (c) a heat dissipator located near the bottom of said inner space and connected to said package so as to close the bottom of said inner space and also connected so that when said insulating package is pushed downward against a plane, said dissipator is securely pushed flush against said plane; (d) a semiconductor chip mounted on said heat dissipator and electrically connected to said metallic frame such that said conducting strips are capable of acting as conductors between said chip and external contacts to which said chip may be connected; (e) an insulating cover located near the top of said inner space and connected near to the top of said insulating package, said cover, (1) including lateral extension means, adapted for connection to an external surface so that connection of said extension means to said external surface causes said insulating cover means to push said insulating package and thus said heat dissipator against said surface, (2) being connected to said insulating package so that attempting to push said cover downward against a plane also causes said insulating package to be pushed toward said plane.
References Cited (Backward Citations)
US4270138A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-03-09 | 1990-09-08 | 1991-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-03-09 | 1994-09-08 | 1995-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-03-09 | 1998-09-08 | 1999-03-10 | $7700.00 | Window Closed / Lapsed |