US4601879A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Copper-nickel-tin-titanium-alloy and a method for its manufacture
Assignee: Wieland Werke AG
•
Filing: 1985-05-24
•
Granted: 1986-07-22
•
Expires: 2005-05-24
Abstract
Abstract A copper-nickel-tin-titanium-alloy suitable for use as a base material for semiconductors includes, by weight, 0.25 to 3.0% nickel, 0.25 to 3.0% tin, and 0.12 to 1.5% titanium, the remainder being copper and common impurities. An alternative form of the inventive alloy includes, by weight, 0.25 to 3.0% nickel, 0.25 to 3.0% tin, 0.12 to 1.5% titanium, and 0.05 to 0.45% chrome, the remainder being copper and common impurities. A method for making these alloys includes the steps of homogenizing the alloy at temperatures of 850° to 950° C. between 1 and 24 hours, hot-rolling the alloy at temperatures of 600° to 800° C. in one or more passes, and cooling the alloy to room temperature with a cooling speed of between 10° C. per minute and 2000° C. per minute.
Inventors
- 👤 Wolfgang Durrschnabel
- 👤 Heinrich Stuer
- 👤 Jorg Steeb
- 👤 Franz J. Puckert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:16
CPC Classifications
C; C22; C22C; C22C9/00; C22C9/06; C22C9/02; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12528
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
30 words
A copper-nickel-tin-titanium-alloy, consisting essentially of: 0.3 to 2.8% nickel by weight, 0.25 to 3.0% tin by weight, 0.25 to 0.75% titanium by weight, the remainder being copper and common impurities.
Claim 2
Dependent Claim
30 words
A copper-nickel-tin-titanium-alloy, consisting essentially of: 0.3 to 2.8% nickel by weight, 0.25 to 3.0% tin by weight, 0.25 to 0.75% titanium by weight, the remainder being copper and common impurities.
Claim 3
Dependent Claim
16 words
The alloy according to claim 1, wherein said alloy contains 0.5 to 1.5% nickel by weight.
Claim 4
Dependent Claim
16 words
The alloy according to claim 1, wherein said alloy contains 0.9 to 1.1% nickel by weight.
Claim 5
Dependent Claim
16 words
The alloy according to claim 1, wherein said alloy contains 0.3 to 2.8% tin by weight.
Claim 6
Dependent Claim
16 words
The alloy according to claim 4, wherein said alloy contains 0.5 to 1.5% tin by weight.
Claim 7
Dependent Claim
16 words
The alloy according to claim 4, wherein said alloy contains 0.9 to 1.1% tin by weight.
Claim 8
Dependent Claim
16 words
The alloy according to claim 1. wherein said alloy contains 0.45 to 0.55% titanium by weight.
Claim 9
Dependent Claim
32 words
The alloy according to claim 1, wherein the constituents nickel, tin and titanium exist in said alloy in the relationship A:B:C, where A=1.8 to 2.2; B=1.8 to 2.2 and C=0.9 to 1.1.
Claim 10
Dependent Claim
21 words
The alloy according to claim 1, wherein the constituents nickel, tin and titanium exist in said alloy in the relationship 2:2:1.
Claim 11
Dependent Claim
36 words
A copper-nickel-tin-titanium-alloy, consisting essentially of: 0.3 to 2.8% nickel by weight, 0.25 to 3.0% tin by weight, 0.25 to 0.75% titanium by weight, 0.05 to 0.45% chrome by weight, the remainder being copper and common impurities.
Claim 12
Dependent Claim
36 words
A copper-nickel-tin-titanium-alloy, consisting essentially of: 0.3 to 2.8% nickel by weight, 0.25 to 3.0% tin by weight, 0.25 to 0.75% titanium by weight, 0.05 to 0.45% chrome by weight, the remainder being copper and common impurities.
Claim 13
Dependent Claim
16 words
The alloy according to claim 10, wherein said alloy contains 0.1 to 0.3% chrome by weight.
Claim 14
Dependent Claim
16 words
The alloy according to claim 10, wherein said alloy contains 0.5 to 1.5% nickel by weight.
Claim 15
Dependent Claim
16 words
The alloy according to claim 10, wherein said alloy contains 0.9 to 1.1% nickel by weight.
Claim 16
Dependent Claim
16 words
The alloy according to claim 10, wherein said alloy contains 0.3 to 2.8% tin by weight.
Claim 17
Dependent Claim
16 words
The alloy according to claim 10, wherein said alloy contains 0.5 to 1.5% tin by weight.
Claim 18
Dependent Claim
16 words
The alloy according to claim 10, wherein said alloy contains 0.9 to 1.1% tin by weight.
Claim 19
Dependent Claim
16 words
The alloy according to claim 10, wherein said alloy contains 0.45 to 0.55% titanium by weight.
Claim 20
Dependent Claim
32 words
The alloy according to claim 10, wherein the constituents nickel, tin and titanium exist in said alloy in the relationship A:B:C, where A=1.8 to 2.2; B=1.8 to 2.2 and C=0.9 to 1.1.
Claim 21
Dependent Claim
21 words
The alloy according to claim 10, wherein the constituents nickel, tin and titanium exist in said alloy in the relationship 2:2:1.
Claim 22
Dependent Claim
36 words
A semiconductor base material which is a copper-nickel-tin-titanium-alloy consisting essentially of: 0.3 to 2.8% nickel by weight, 0.25 to 3.0% tin by weight, 0.25 to 0.75% titanium by weight, the remainder being copper and common impurites.
Claim 23
Dependent Claim
36 words
A semiconductor base material which is a copper-nickel-tin-titanium-alloy consisting essentially of: 0.3 to 2.8% nickel by weight, 0.25 to 3.0% tin by weight, 0.25 to 0.75% titanium by weight, the remainder being copper and common impurites.
Claim 24
Dependent Claim
42 words
A semiconductor base material which is a copper-nickel-tin-titanium-alloy consisting essentially of: 0.3 to 2.8% nickel by weight, 0.25 to 3.0% tin by weight, 0.25 to 0.75% titanium by weight, 0.05 to 0.45% chrome by weight, the remainder being copper and common impurities.
Claim 25
Dependent Claim
42 words
A semiconductor base material which is a copper-nickel-tin-titanium-alloy consisting essentially of: 0.3 to 2.8% nickel by weight, 0.25 to 3.0% tin by weight, 0.25 to 0.75% titanium by weight, 0.05 to 0.45% chrome by weight, the remainder being copper and common impurities.
References Cited (Backward Citations)
DE1458340A1
Cited
US3421888A
Cited
US4046596A
Cited
JPS5315217A
Cited
US4366117A
Cited
US4337089A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-07-21 | 1990-01-20 | 1990-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-07-21 | 1994-01-20 | 1994-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-07-21 | 1998-01-20 | 1998-07-22 | $7700.00 | Window Closed / Lapsed |