US5145931A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Semiconductor pellet adhesive and article made therewith
Assignee: DuPont Toray Specialty Materials KK
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Filing: 1990-10-26
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Granted: 1992-09-08
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Expires: 2010-10-26
Abstract
Abstract An adhesive for bonding a semiconductor pellet to an attachment site where the adhesive is an addition reaction-curing silicone rubber composition which contain ≦500 ppm of low-molecular-weight siloxane which has a vapor pressure ≧10 mmHg at 200° C.
Inventors
- 👤 Kazumi Nakayoshi
- 👤 Katsutoshi Mine
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 12:42
CPC Classifications
C; C08; C08G; C08G77/00; C08G77/04; C08G77/32; C08G77/34; C08L; C08L83/00; C09; C09J; C09J183/00; C09J183/04; H; H10; H10W; H10W72/00; H10W72/50; H10W72/551; H10W72/552; H10W72/5522; H10W72/851; H10W72/874; H10W72/884; H10W90/00; H10W90/701; H10W90/731; H10W90/736; H10W90/751; H10W90/756
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
42 words
An adhesive for bonding a semiconductor pellet to the material at said pellet's attachment site, wherein said adhesive comprises an addition reaction-curing silicone rubber composition which contains ≦500 ppm of low-molecular-weight siloxane which has a vapor pressure ≧10 mmHg at 200° C.
Claim 2
Dependent Claim
42 words
An adhesive for bonding a semiconductor pellet to the material at said pellet's attachment site, wherein said adhesive comprises an addition reaction-curing silicone rubber composition which contains ≦500 ppm of low-molecular-weight siloxane which has a vapor pressure ≧10 mmHg at 200° C.
Claim 3
Dependent Claim
141 words
The adhesive according to claim 1 in which the addition reaction-curing silicone rubber composition consists of (A) 100 parts by weight organopolysiloxane which has at least two silicon-bonded alkenyl groups in each molecule and which contains ≦500 ppm low-molecular-weight siloxane with a vapor pressure ≧10 mmHg at 200° Centrigrade, (B) organohydrogenpolysiloxane having at least two silicon-bonded hydrogen atoms in each molecule, in a quantity such that this component furnishes 0.5 to 3 silicon-bonded hydrogen atoms per 1 alkenyl group in component (A), (C) 0 to 10 parts by weight of an organosilicon compound which contains a functional group as represented by --SiOR 1 in which R 1 is a monovalent hydrocarbon group and which also contains the silicon-bonded lower alkenyl group or silicon-bonded hydrogen atom, (D) a catalytic quantity of a platinum-type catalyst, and (E) 0 to 400 weight parts filler.
Claim 4
Dependent Claim
22 words
The adhesive according to claim 2 in which (C) is present in an amount of from 0.5 to 3 parts by weight.
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) | 1995-09-08 | 1996-03-09 | 1996-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-09-08 | 2000-03-09 | 2000-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-09-08 | 2004-03-09 | 2004-09-08 | $7700.00 | Window Closed / Lapsed |