US4414264A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chip carrier substrates of hybrid woven glass cloths
Assignee: Honeywell UOP LLC
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Filing: 1983-01-13
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Granted: 1983-11-08
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Expires: 2003-01-13
Abstract
Abstract Multilayer laminates and substrates for carriers of silicon chips which are used in circuitry boards will comprise woven hybrid glass cloth formed from fiberglass and a second material which possesses a coefficient of thermal expansion of less than about 5.0×10 -6 in/in/°C. The resulting laminates will be thermally and dimensionally stable. As an example, a hybrid glass cloth may be formed in which the warp yarn of said cloth is fiberglass and the fill yarn is boron nitride. The resulting cloth may be used to form laminates which possess a coefficient of thermal expansion similar in nature to that of a chip carrier such as ceramic, thus minimizing the danger of a solder fracture.
Inventors
- 👤 Larry D. Olson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:57
CPC Classifications
B; B29; B29C; B29C70/00; B32; B32B; B32B27/00; B32B27/12; D; D03; D03D; D03D15/00; D03D15/20; D03D15/242; D03D15/267; H; H05; H05K; H05K1/00; H05K1/02; H05K1/03; H05K1/0313; H05K1/0353; H05K1/0366; H10; H10W; H10W70/00; H10W70/60; H10W70/67; H10W70/69; H10W70/692; B29K; B29K2309/00; B29K2309/08; B32B2315/00; B32B2315/08; B32B2315/085; B32B2363/00; B32B2379/00; B32B2379/08; B32B2457/00; B32B2457/08; H05K2201/00; H05K2201/02; H05K2201/0275; H05K2201/0278; H05K2201/029; H05K2201/06; H05K2201/068; Y; Y10; Y10S; Y10S428/00; Y10S428/901; Y10T; Y10T442/00; Y10T442/30; Y10T442/3179; Y10T442/322; Y10T442/3228; Y10T442/3236; Y10T442/3252
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
41 words
The application of a substrate for carrying a silicon chip (integrated circuits) which comprises a hybrid glass cloth woven from yarn comprising fiberglass and a second material which possesses a coefficient of thermal expansion of less than about 5.0×10 -6 in/in/°C.
Claim 2
Dependent Claim
41 words
The application of a substrate for carrying a silicon chip (integrated circuits) which comprises a hybrid glass cloth woven from yarn comprising fiberglass and a second material which possesses a coefficient of thermal expansion of less than about 5.0×10 -6 in/in/°C.
Claim 3
Dependent Claim
13 words
The substrate as set forth in claim 1 comprising a dimensionally stable laminate.
Claim 4
Dependent Claim
27 words
The substrate as set forth in claim 1 in which the warp yarn of said hybrid glass cloth is fiberglass and the fill yarn is boron nitride.
Claim 5
Dependent Claim
35 words
The substrate as set forth in claim 1 in which the warp yarn of said hybrid glass cloth is a mixture of fiberglass and boron nitride and said fill yarn is a boron nitride filament.
Claim 6
Dependent Claim
23 words
The substrate as set forth in claim 1 in which the warp yarn is fiberglass and the fill yarn is a nylon filament.
Claim 7
Dependent Claim
28 words
The substrate as set forth in claim 1 in which the warp yarn is a mixture of fiberglass and nylon and the fill yarn is a nylon filament.
Claim 8
Dependent Claim
23 words
The substrate as set forth in claim 1 in which warp and/or fill yarns are a hybrid of alternating yarns (end and end).
Claim 9
Dependent Claim
29 words
The substrate as set forth in claim 1 in which the thickness of said woven hybrid glass cloth is in a range of from about 0.0015" to about 0.20".
Claim 10
Dependent Claim
26 words
The substrate as set forth in claim 2 in which said dimensionally stable laminate comprises alternate layers of said woven hybrid glass cloth and a fiberglass.
Claim 11
Dependent Claim
28 words
The substrate as set forth in claim 9 in which the thickness of said dimensionally stable laminate is in a range of from about 0.003" to about 0.250".
References Cited (Backward Citations)
US4201247A
Cited
US4304811A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-11-07 | 1987-05-09 | 1987-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-11-07 | 1991-05-09 | 1991-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-11-07 | 1995-05-09 | 1995-11-08 | $7700.00 | Window Closed / Lapsed |