Number | Name | Date | Kind |
---|---|---|---|
2684892 | Saulnier et al. | Jul 1954 | |
3850711 | Conley | Nov 1974 | |
3855141 | Ruff | Dec 1974 | |
4269678 | Faul et al. | May 1981 | |
4411952 | Sasaki et al. | Oct 1983 | |
4503285 | Darms et al. | Mar 1985 | |
4543295 | St. Clair et al. | Sep 1985 | |
4675246 | Kundinger et al. | Jun 1987 | |
4681654 | Clementi et al. | Jul 1987 | |
4858073 | Gregory | Aug 1989 | |
4868071 | Walsh et al. | Sep 1989 | |
4883718 | Ohta et al. | Nov 1989 | |
4906803 | Albrechta et al. | Mar 1990 | |
4917758 | Ishizuka et al. | Apr 1990 |
Number | Date | Country |
---|---|---|
437948 | Jan 1975 | SUX |
Entry |
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IBM Technical Disclosure Bulletin vol. 12, No. 9, Feb. 1970 "Circuit Etching Process", by Butora et al. |
IBM Technical Disclosure Bulletin vol. 30, No. 11, Apr., 1988, "Copper(I) Monitor For Etching Solutions" by Bindra et al. |
IBM Technical Disclosure Bulletin vol. 30, No. 3, Aug., 1987, "Use Of Sacrificial Copper Allowing Removal By Mechanical Methods", by Carey et al. |