Patent US5723900A successfully refreshed from Google Patents.
US5723900A
Expired / Lapsed
US
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Resin mold type semiconductor device
Assignee: Sony Corp
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Filing: 1997-02-12
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Granted: 1998-03-03
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Expires: 2017-02-12
Abstract
Abstract A ultra thin resin mold semiconductor device can be provided. A resin mold type semiconductor device is arranged so that a semiconductor chip is disposed within a range of the thickness of a lead frame and sealed with a resin mold, that the thickness of the semiconductor device is defined by the thickness of the lead frame, and that an upper surface, a lower surface and a side surface of a terminal portion formed by the lead frame are exposed from the surface of the resin mold.
Inventors
- 👤 Akira Kojima
- 👤 Haruhiko Makino
- 👤 Kenji Ohsawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 09:48
CPC Classifications
H; H10; H10W; H10W74/00; H10W74/10; H10W74/111; H10W70/00; H10W70/40; H10W70/453; H10W90/00; H10W72/00; H10W72/071; H10W72/072; H10W72/07251; H10W72/20; H10W72/851; H10W72/874; H10W72/877; H10W74/131; H10W74/142; H10W90/701; H10W90/721; H10W90/722
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
92 words
A resin mold type semiconductor device comprising: a semiconductor chip; and a lead frame, said semiconductor chip having a thickness which is less than a thickness of said lead frame and being sealed with resin mold; said lead frame having at least one conductor with a terminal portion external to said semiconductor device and extending to a location adjacent said chip; said chip being supported in said frame only by said conductors and said resin mold and further wherein a surface of the chip is flush with a surface of the resin.
Claim 2
Dependent Claim
92 words
A resin mold type semiconductor device comprising: a semiconductor chip; and a lead frame, said semiconductor chip having a thickness which is less than a thickness of said lead frame and being sealed with resin mold; said lead frame having at least one conductor with a terminal portion external to said semiconductor device and extending to a location adjacent said chip; said chip being supported in said frame only by said conductors and said resin mold and further wherein a surface of the chip is flush with a surface of the resin.
Claim 3
Dependent Claim
26 words
A resin mold type semiconductor device according to claim 1, wherein a thickness of said semiconductor device is defined by the thickness of said lead frame.
Claim 4
Dependent Claim
39 words
A resin mold type semiconductor device according to claim 2, wherein an upper surface, a lower surface and a side surface of said terminal portion formed by said lead frame are exposed from the surface of said resin mold.
Claim 5
Dependent Claim
41 words
A resin mold type semiconductor device according to claim 2 wherein said semiconductor chip is interconnected to a connection lead portion of said conductor which is led out integrally from said terminal portion and which is thinner than said terminal portion.
Claim 6
Dependent Claim
39 words
A resin mold type semiconductor device according to claim 1, wherein an upper surface, a lower surface and a side surface of said terminal portion formed by said lead frame are exposed from the surface of said resin mold.
Claim 7
Dependent Claim
41 words
A resin mold type semiconductor device according to claim 5 wherein said semiconductor chip is interconnected to a connection lead portion of said conductor which is led out integrally from said terminal portion and which is thinner than said terminal portion.
Claim 8
Dependent Claim
41 words
A resin mold type semiconductor device according to claim 1, wherein said semiconductor chip is interconnected to a connection lead portion of said conductor which is led out integrally from said terminal portion and which is thinner than said terminal portion.
Claim 9
Dependent Claim
24 words
A resin mold type semiconductor device according to claim 1, wherein a heat sink is attached to an exposed surface of the semiconductor chip.
Claim 10
Dependent Claim
55 words
A resin mold type semiconductor device according to claim 1, wherein a second resin mold type semiconductor device having a plurality of leads is secured above an exposed surface of the chip and wherein a plurality of leads from the second resin mold type semiconductor device are connected to corresponding leads of the semiconductor chip.
Claim 11
Dependent Claim
83 words
A resin mold semiconductor device comprising: at least one outer conductive lead formed as a three-dimensional substantially rectangular body having a thickness; an inner lead having a first portion in contact with a first surface of the outer conductive lead and a second portion extending inward toward a semiconductor chip, said second portion also bending up from the first surface of the outer conductive lead and wherein a thickness of the semiconductor chip is less than a thickness of the outer conductive lead.
Claim 12
Dependent Claim
83 words
A resin mold semiconductor device comprising: at least one outer conductive lead formed as a three-dimensional substantially rectangular body having a thickness; an inner lead having a first portion in contact with a first surface of the outer conductive lead and a second portion extending inward toward a semiconductor chip, said second portion also bending up from the first surface of the outer conductive lead and wherein a thickness of the semiconductor chip is less than a thickness of the outer conductive lead.
Claim 13
Dependent Claim
15 words
The resin molded semiconductor device of claim 10, further comprising resin surrounding said semiconductor chip.
Claim 14
Dependent Claim
19 words
The resin molded semiconductor device of claim 10, wherein resin surrounds all but one side of the semiconductor chip.
Claim 15
Dependent Claim
22 words
The resin molded semiconductor device of claim 12 wherein a heat sink is attached to an exposed surface of the semiconductor chip.
Claim 16
Dependent Claim
55 words
A resin mold type semiconductor device according to claim 12, wherein a second resin mold type semiconductor device having a plurality of leads is secured above an exposed surface of the chip and wherein a plurality of leads from the second resin mold type semiconductor device are connected to corresponding leads of the semiconductor chip.
Claim 17
Dependent Claim
75 words
A resin mold semiconductor device comprising: at least one outer conductive lead formed as a three-dimensional substantially rectangular body having a first thickness; an inner lead having a first portion in contact with a first surface of the outer conductive lead and a second portion extending inward toward a semiconductor chip, and wherein a thickness of the semiconductor chip is less than a combination of the first thickness and a thickness of the inner lead.
Claim 18
Dependent Claim
75 words
A resin mold semiconductor device comprising: at least one outer conductive lead formed as a three-dimensional substantially rectangular body having a first thickness; an inner lead having a first portion in contact with a first surface of the outer conductive lead and a second portion extending inward toward a semiconductor chip, and wherein a thickness of the semiconductor chip is less than a combination of the first thickness and a thickness of the inner lead.
Claim 19
Dependent Claim
19 words
The semiconductor device of claim 15, wherein a thickness of the semiconductor chip is less than the first thickness.
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) | 2001-03-02 | 2001-09-01 | 2002-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-03-02 | 2005-09-01 | 2006-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-03-02 | 2009-09-01 | 2010-03-03 | $7700.00 | Window Closed / Lapsed |