US5334858A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Semiconductor device of tab structure, capable of ensuring ease of testing of same in final form
Assignee: Toshiba Corp
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Filing: 1993-07-02
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Granted: 1994-08-02
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Expires: 2013-07-02
Abstract
Abstract A semiconductor device comprises a tape member, an IC chip mounted on the tape member, a plurality of leads arranged on the tape member each having one end connected to the IC chip and the other end provided with an area to be used for testing the IC chip and an insulation member for covering said plurality of leads except the one ends and the areas to be used for testing the IC chip, the tape member being provided with one or more one openings that reach the plurality of leads. With such an arrangement, the plurality of leads can be easily accessed and brought into contact with probes for testing the IC chip.
Inventors
- 👤 Shinobu Wada
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:47
CPC Classifications
H; H10; H10W; H10W70/00; H10W70/40; H10W70/453; H10W72/00; H10W72/701
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
154 words
A semiconductor device comprising: a tape member having first and second faces, at a center of which a hole is formed; a plurality of leads having first and second ends and mounted on the first face of said tape member so that the first ends project over said hole; a slit formed in a portion of said tape member around the hole, said slit being located below portions of said leads which are proximate to the first ends, said slit exposing said leads to permit contact with a probe; a semiconductor chip arranged in aid hole and in contact with the first ends; a first insulation member located in said hole, for covering at least a contact portion where said semiconductor chip and the first ends are in contact with one another; and a second insulation member formed on said leads and said slit, for covering said leads except for the second ends thereof.
Claim 2
Dependent Claim
154 words
A semiconductor device comprising: a tape member having first and second faces, at a center of which a hole is formed; a plurality of leads having first and second ends and mounted on the first face of said tape member so that the first ends project over said hole; a slit formed in a portion of said tape member around the hole, said slit being located below portions of said leads which are proximate to the first ends, said slit exposing said leads to permit contact with a probe; a semiconductor chip arranged in aid hole and in contact with the first ends; a first insulation member located in said hole, for covering at least a contact portion where said semiconductor chip and the first ends are in contact with one another; and a second insulation member formed on said leads and said slit, for covering said leads except for the second ends thereof.
Claim 3
Dependent Claim
14 words
The semiconductor device according to claim 1, wherein said slit completely surrounds said hole.
Claim 4
Dependent Claim
14 words
The semiconductor device according to claim 1, wherein said slit partly surrounds said hole.
Claim 5
Dependent Claim
179 words
A semiconductor device comprising: a tape member having first and second faces, at a center of which a first hole is formed; a plurality of leads having first and second ends and mounted on the first face of said tape member so that the first ends project over the first hole; a plurality of second holes arranged in a plurality of lines in a staggered manner, the second holes being formed in a portion of said tape member around the first hole, said second holes being located below portions of said leads which are proximate to the first ends, said second holes exposing said leads to permit contact with a probe; a semiconductor chip arranged in the first hole and in contact with the first ends; a first insulation member located in the first hole, for covering at least a contact portion where said semiconductor chip and the first ends are in contact with one another; and a second insulation member formed on said leads and said second holes, for covering said leads except for the second ends thereof.
Claim 6
Dependent Claim
179 words
A semiconductor device comprising: a tape member having first and second faces, at a center of which a first hole is formed; a plurality of leads having first and second ends and mounted on the first face of said tape member so that the first ends project over the first hole; a plurality of second holes arranged in a plurality of lines in a staggered manner, the second holes being formed in a portion of said tape member around the first hole, said second holes being located below portions of said leads which are proximate to the first ends, said second holes exposing said leads to permit contact with a probe; a semiconductor chip arranged in the first hole and in contact with the first ends; a first insulation member located in the first hole, for covering at least a contact portion where said semiconductor chip and the first ends are in contact with one another; and a second insulation member formed on said leads and said second holes, for covering said leads except for the second ends thereof.
Claim 7
Dependent Claim
18 words
The semiconductor device according to claim 4, wherein said plurality of second holes completely surrounds the first hole.
Claim 8
Dependent Claim
18 words
The semiconductor device according to claim 4, wherein said plurality of second holes partly surrounds the first hole.
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) | 1997-08-01 | 1998-01-31 | 1998-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-08-01 | 2002-01-31 | 2002-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-08-01 | 2006-01-31 | 2006-08-02 | $7700.00 | Window Closed / Lapsed |