US5877546A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Semiconductor package with transparent window and fabrication method thereof
Assignee: SK Hynix Inc
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Filing: 1996-01-02
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Granted: 1999-03-02
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Expires: 2016-01-02
Abstract
Abstract An improved semiconductor package with a transparent window and a fabrication method thereof having a transparent window formed at a central portion of a semiconductor apparatus not providing a ceramic upper plate and adhesive, which includes a semiconductor chip; a ceramic plate for receiving the semiconductor chip; a lead frame sealed with the ceramic plate, the lead frame being angled and curved; a transparent window mounted on the upper portion of the lead frame; and a sealant provided at the ceramic plate and a side surface of the transparent window.
Inventors
- 👤 Joong Ha You
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 01:28
CPC Classifications
H; H10; H10F; H10F77/00; H10F77/50; H10W; H10W72/00; H10W72/851; H10W72/874; H10W72/884
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
123 words
A chip package, comprising: a mounting plate; a chip having a plurality of bond pads attached to the mounting plate; a plurality of leads, wherein the leads are coupled to bond pads of the chip; a first adhesive portion attaching bottom surfaces of the plurality of leads to a peripheral portion of the mounting plate; a transparent window; and a second adhesive portion attaching a peripheral edge of the transparent window to upper surfaces of the leads, wherein the first and second adhesive portions are applied to the leads such that apertures are formed on each of the leads, and wherein the apertures allow gas to flow between an interior and an exterior of the chip package, and wherein the apertures are sealable.
Claim 2
Dependent Claim
123 words
A chip package, comprising: a mounting plate; a chip having a plurality of bond pads attached to the mounting plate; a plurality of leads, wherein the leads are coupled to bond pads of the chip; a first adhesive portion attaching bottom surfaces of the plurality of leads to a peripheral portion of the mounting plate; a transparent window; and a second adhesive portion attaching a peripheral edge of the transparent window to upper surfaces of the leads, wherein the first and second adhesive portions are applied to the leads such that apertures are formed on each of the leads, and wherein the apertures allow gas to flow between an interior and an exterior of the chip package, and wherein the apertures are sealable.
Claim 3
Dependent Claim
13 words
The package of claim 1, wherein the transparent window comprises a flat window.
Claim 4
Dependent Claim
19 words
The package of claim 1, wherein exterior dimensions of the transparent window match exterior dimensions of the mounting plate.
Claim 5
Dependent Claim
24 words
The package of claim 1, wherein the apertures are formed between each of the leads, the first adhesive portion, and the second adhesive portion.
Claim 6
Dependent Claim
21 words
The package of claim 1, wherein the apertures are formed between upper surfaces of the leads and the second adhesive portion.
Claim 7
Dependent Claim
16 words
The package of claim 1, wherein the apertures are formed between side surfaces of the leads.
Claim 8
Dependent Claim
83 words
A chip package, comprising: a mounting plate; a chip having a plurality of bond pads attached to the mounting plate; a plurality of leads, wherein the leads are coupled to bond pads of the chip; a transparent window; and means for attaching the leads and the transparent window to the mounting plate such that apertures formed between the window and the mounting plate allow gas to flow between an interior and an exterior of the chip package, and wherein the apertures are sealable.
Claim 9
Dependent Claim
83 words
A chip package, comprising: a mounting plate; a chip having a plurality of bond pads attached to the mounting plate; a plurality of leads, wherein the leads are coupled to bond pads of the chip; a transparent window; and means for attaching the leads and the transparent window to the mounting plate such that apertures formed between the window and the mounting plate allow gas to flow between an interior and an exterior of the chip package, and wherein the apertures are sealable.
Claim 10
Dependent Claim
19 words
The semiconductor package of claim 7, wherein the leads are interposed between the mounting plate and the transparent window.
Claim 11
Dependent Claim
21 words
The semiconductor package of claim 7, wherein the attaching means comprises an adhesive interposed between the mounting plate and the window.
Claim 12
Dependent Claim
19 words
The semiconductor package of claim 9, wherein apertures are formed between the adhesive and upper surfaces of the leads.
Claim 13
Dependent Claim
18 words
The semiconductor package of claim 9, wherein apertures are formed in the adhesive between surfaces of the leads.
Claim 14
Dependent Claim
32 words
The semiconductor package of claim 7, wherein the attaching means comprises a first adhesive portion and a second adhesive portion, and wherein apertures are formed between the first and second adhesive portions.
References Cited (Backward Citations)
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US4961106A
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JPH02142165A
Cited
JPH02150073A
Cited
JPH02250374A
Cited
JPH03124062A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2002-03-01 | 2002-08-31 | 2003-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-03-01 | 2006-08-31 | 2007-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-03-01 | 2010-08-31 | 2011-03-02 | $7700.00 | Window Closed / Lapsed |