Patent US5454926A successfully refreshed from Google Patents.
US5454926A
Expired / Lapsed
US
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Electrodeposited copper foil
Assignee: Gould Electronics Inc
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Filing: 1994-12-23
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Granted: 1995-10-03
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Expires: 2014-12-23
Abstract
Abstract This invention relates to electrodeposited copper foil having an elongation measured at 180° C. in excess of about 5.5%, an ultimate tensile strength measured at 23° C. in excess of about 60,000 psi, and a matte-side R tm in the range of about 4.5 to about 18 μm. This invention also relates to a process for making electrodeposited copper foil which comprises: preparing a copper deposition bath comprising water, copper ions and sulfate ions, said bath containing less than about 20 ppm chloride ions; and applying electric current to said bath to electrodeposit copper from said bath using a current density in the range of about 200 to about 3000 amps per square foot.
Inventors
- 👤 Sidney J. Clouser
- 👤 Dino F. DiFranco
- 👤 Craig J. Hasegawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 11:00
CPC Classifications
C; C25; C25D; C25D3/00; C25D3/02; C25D3/38; C25D1/00; C25D1/04; H; H05; H05K; H05K1/00; H05K1/02; H05K1/09; H05K2201/00; H05K2201/03; H05K2201/0332; H05K2201/0335; H05K2201/0355; H05K3/00; H05K3/38; H05K3/382; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9335; Y10S428/934; Y10S428/935; Y10T; Y10T428/00; Y10T428/12; Y10T428/12431; Y10T428/12993
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
60 words
An electrodeposited copper foil having an elongation measured at 180° C. in excess of about 5.5% , an ultimate tensile strength measured at 180° C. in excess of about 25,000 psi an ultimate tensile strength measured at 23° C. in excess of about 66,000 psi, and a matte-side R tm in the range of about 4.5 to about 18 μm.
Claim 2
Dependent Claim
60 words
An electrodeposited copper foil having an elongation measured at 180° C. in excess of about 5.5% , an ultimate tensile strength measured at 180° C. in excess of about 25,000 psi an ultimate tensile strength measured at 23° C. in excess of about 66,000 psi, and a matte-side R tm in the range of about 4.5 to about 18 μm.
Claim 3
Dependent Claim
20 words
The foil of claim 1 with an ultimate tensile strength measured at 23° C. in excess of about 68,000 psi.
Claim 4
Dependent Claim
20 words
The foil of claim 1 with an ultimate tensile strength measured at 23° C. in excess of about 70,000 psi.
Claim 5
Dependent Claim
17 words
The foil of claim 1 with an elongation measured at 180° C. in excess of about 6%.
Claim 6
Dependent Claim
17 words
The foil of claim 1 with an elongation measured at 180° C. in excess of about 8%.
Claim 7
Dependent Claim
17 words
The foil of claim 1 with an elongation measured at 180° C. in excess of about 10%.
Claim 8
Dependent Claim
20 words
The foil of claim 1 with an ultimate tensile strength measured at 180° C. in excess of about 30,000 psi.
Claim 9
Dependent Claim
20 words
The foil of claim 1 with an ultimate tensile strength measured at 180° C. in excess of about 32,000 psi.
Claim 10
Dependent Claim
18 words
The foil of claim 1 having a weight of about 1/8 to about 14 ounces per square foot.
Claim 11
Dependent Claim
16 words
The foil of claim 1 further having a weight of about 1/4 ounce per square foot.
Claim 12
Dependent Claim
16 words
The foil of claim 1 further having a weight of about 3/8 ounce per square foot.
Claim 13
Dependent Claim
16 words
The foil of claim 1 further having a weight of about 1/2 ounce per square foot.
Claim 14
Dependent Claim
16 words
The foil of claim 1 further having a weight of about 1 ounce per square foot.
Claim 15
Dependent Claim
16 words
The foil of claim 1 further having a weight of about 2 ounces per square foot.
Claim 16
Dependent Claim
29 words
The foil of claim 1 with a matte-side R tm of about 4.5 to about 12 μm and further having a weight of about 1/2 ounce per square foot.
Claim 17
Dependent Claim
29 words
The foil of claim 1 with a matte-side R tm of about 4.5 to about 14 μm and further having a weight of about 1 ounce per square foot.
Claim 18
Dependent Claim
29 words
The foil of claim 1 with a matte-side R tm of about 4.5 to about 16 μm and further having a weight of about 2 ounces per square foot.
Claim 19
Dependent Claim
59 words
An electrodeposited copper foil having an elongation measured at 180° C. in excess of about 10%, an ultimate tensile strength measured at 180° C. in excess of about 25,000 psi, an ultimate tensile strength measured at 23° C. in excess of about 66,000 psi, and a matte-side R tm in the range of about 4.5 to about 9 μm.
Claim 20
Dependent Claim
59 words
An electrodeposited copper foil having an elongation measured at 180° C. in excess of about 10%, an ultimate tensile strength measured at 180° C. in excess of about 25,000 psi, an ultimate tensile strength measured at 23° C. in excess of about 66,000 psi, and a matte-side R tm in the range of about 4.5 to about 9 μm.
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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) | 1998-10-02 | 1999-04-03 | 1999-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-10-02 | 2003-04-03 | 2003-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-10-02 | 2007-04-03 | 2007-10-03 | $7700.00 | Window Closed / Lapsed |