US4080485A
Expired / Lapsed
US
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Fine gold wire for use in connection in a semiconductor device
Assignee: NEC Corp
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Filing: 1976-12-28
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Granted: 1978-03-21
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Expires: 1996-12-28
Abstract
Abstract A fine wire made of a gold alloy for use in a semiconductor device. The alloy consists essentially of at least one control element selected from the group consisting of carbon in an amount of 1 to 25 wt. ppm., silicon in an amount of 1 to 25 wt. ppm., germanium in an amount of 3 to 30 wt. ppm., tin in an amount of 5 to 30 wt. ppm., and lead in an amount of 5 to 30 wt. ppm.; with balance gold of a purity of more than 99.995 wt.
Inventors
- 👤 Manabu Bonkohara
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:13
CPC Classifications
C; C22; C22C; C22C5/00; C22C5/02; H; H10; H10W; H10W72/00; H10W72/01; H10W72/015; H10W72/01551; H10W72/071; H10W72/0711; H10W72/07141; H10W72/075; H10W72/07511; H10W72/50; H10W72/531; H10W72/536; H10W72/5363; H10W72/551; H10W72/552; H10W72/5522; H10W72/59; H10W72/851; H10W72/874; H10W72/884; H10W72/90; H10W72/951; H10W72/952; H10W90/00; H10W90/701; H10W90/731; H10W90/736; H10W90/751; H10W90/756; Y; Y10; Y10S; Y10S148/00; Y10S148/02; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12528
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
40 words
A fine wire for use in a semiconductor device, made of a gold alloy consisting essentially of carbon in an amount of 1 to 25 wt. ppm. with the balance gold of a purity of more than 99.995 wt. percent.
Claim 2
Dependent Claim
40 words
A fine wire for use in a semiconductor device, made of a gold alloy consisting essentially of carbon in an amount of 1 to 25 wt. ppm. with the balance gold of a purity of more than 99.995 wt. percent.
Claim 3
Dependent Claim
40 words
A fine wire for use in a semiconductor device, made of a gold alloy consisting essentially of silicon in an amount of 1 to 25 wt. ppm. with the balance gold of a purity of more than 99.995 wt. percent.
Claim 4
Dependent Claim
40 words
A fine wire for use in a semiconductor device, made of a gold alloy consisting essentially of silicon in an amount of 1 to 25 wt. ppm. with the balance gold of a purity of more than 99.995 wt. percent.
Claim 5
Dependent Claim
40 words
A fine wire for use in a semiconductor device, made of a gold alloy consisting essentially of germanium in an amount of 3 to 30 wt. ppm. with the balance gold of a purity of more than 99.995 wt. percent.
Claim 6
Dependent Claim
40 words
A fine wire for use in a semiconductor device, made of a gold alloy consisting essentially of germanium in an amount of 3 to 30 wt. ppm. with the balance gold of a purity of more than 99.995 wt. percent.
Claim 7
Dependent Claim
40 words
A fine wire for use in a semiconductor device, made of a gold alloy consisting essentially of tin in an amount of 5 to 30 wt. ppm. with the balance gold of a purity of more than 99.995 wt. percent.
Claim 8
Dependent Claim
40 words
A fine wire for use in a semiconductor device, made of a gold alloy consisting essentially of tin in an amount of 5 to 30 wt. ppm. with the balance gold of a purity of more than 99.995 wt. percent.
Claim 9
Dependent Claim
98 words
A fine wire made of a gold alloy consisting essentially of at least one control element selected from the group consisting of carbon in an amount of 1 to 25 wt. ppm., silicon in an amount of 1 to 25 wt. ppm., germanium in an amount of 3 to 30 wt. ppm., tin in an amount of 5 to 30 wt. ppm., and lead in an amount of 5 to 30 wt. ppm., the total amount of said control elements not exceeding 100 wt. ppm, with the balance gold of a purity of more than 99.995 wt. percent.
Claim 10
Dependent Claim
98 words
A fine wire made of a gold alloy consisting essentially of at least one control element selected from the group consisting of carbon in an amount of 1 to 25 wt. ppm., silicon in an amount of 1 to 25 wt. ppm., germanium in an amount of 3 to 30 wt. ppm., tin in an amount of 5 to 30 wt. ppm., and lead in an amount of 5 to 30 wt. ppm., the total amount of said control elements not exceeding 100 wt. ppm, with the balance gold of a purity of more than 99.995 wt. percent.
Claim 11
Dependent Claim
22 words
A fine wire as set forth in claim 5, wherein said fine wire is of a diameter ranging from 10 to 100μ.
Claim 12
Dependent Claim
103 words
A fine wire for use in a semiconductor device, made of a gold alloy consisting essentially of at least one control element selected from the group consisting of carbon in an amount of 1 to 25 wt. ppm., silicon in an amount of 1 to 25 wt. ppm., germanium in an amount of 3 to 30 wt. ppm., tin in an amount of 5 to 30 wt. ppm., and lead in an amount of 5 to 30 wt. ppm.; the total amount of said control elements not exceeding 100 wt. ppm, and the balance gold of purity of more than 99.995 wt. percent.
Claim 13
Dependent Claim
103 words
A fine wire for use in a semiconductor device, made of a gold alloy consisting essentially of at least one control element selected from the group consisting of carbon in an amount of 1 to 25 wt. ppm., silicon in an amount of 1 to 25 wt. ppm., germanium in an amount of 3 to 30 wt. ppm., tin in an amount of 5 to 30 wt. ppm., and lead in an amount of 5 to 30 wt. ppm.; the total amount of said control elements not exceeding 100 wt. ppm, and the balance gold of purity of more than 99.995 wt. percent.
Claim 14
Dependent Claim
22 words
A fine wire as set forth in claim 7, wherein said fine wire is of a diameter ranging from 10 to 100μ.
Claim 15
Dependent Claim
111 words
In a semiconductor device employing a fine gold wire as an electrical connector, the improvement wherein the composition of said wire consists essentially of at least one control element selected from the group consisting of carbon in an amount of 1 to 25 wt. ppm., silicon in an amount of 1 to 25 wt. ppm., germanium in an amount of 3 to 30 wt. ppm., tin in an amount of 5 to 30 wt. ppm., and lead in an amount of 5 to 30 wt. ppm., the total amount of said control element not exceeding 100 wt. ppm., with the balance gold of a purity of more than 99.995 wt. percent.
Claim 16
Dependent Claim
111 words
In a semiconductor device employing a fine gold wire as an electrical connector, the improvement wherein the composition of said wire consists essentially of at least one control element selected from the group consisting of carbon in an amount of 1 to 25 wt. ppm., silicon in an amount of 1 to 25 wt. ppm., germanium in an amount of 3 to 30 wt. ppm., tin in an amount of 5 to 30 wt. ppm., and lead in an amount of 5 to 30 wt. ppm., the total amount of said control element not exceeding 100 wt. ppm., with the balance gold of a purity of more than 99.995 wt. percent.
Claim 17
Dependent Claim
111 words
In a semiconductor device employing a fine gold wire as an electrical connector, the improvement wherein the composition of said wire consists essentially of at least one control element selected from the group consisting of carbon in an amount of 1 to 25 wt. ppm., silicon in an amount of 1 to 25 wt. ppm., germanium in an amount of 3 to 30 wt. ppm., tin in an amount of 5 to 30 wt. ppm., and lead in an amount of 5 to 30 wt. ppm.; the total amount of said control elements not exceeding 100 wt. ppm, with the balance gold of a purity of more than 99.995 wt. percent.
Claim 18
Dependent Claim
111 words
In a semiconductor device employing a fine gold wire as an electrical connector, the improvement wherein the composition of said wire consists essentially of at least one control element selected from the group consisting of carbon in an amount of 1 to 25 wt. ppm., silicon in an amount of 1 to 25 wt. ppm., germanium in an amount of 3 to 30 wt. ppm., tin in an amount of 5 to 30 wt. ppm., and lead in an amount of 5 to 30 wt. ppm.; the total amount of said control elements not exceeding 100 wt. ppm, with the balance gold of a purity of more than 99.995 wt. percent.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-03-20 | 1981-09-19 | 1982-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-03-20 | 1985-09-19 | 1986-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-03-20 | 1989-09-19 | 1990-03-21 | $7700.00 | Window Closed / Lapsed |