Aluminium electroplating formulations

Details Aluminium electroplating formulations Aluminium electroplating formulations

2007-07-31

2007-07-31

King, Roy (Department: 1742)

Electrolysis: processes, compositions used therein, and methods

Electrolytic coating

Utilizing nonaqueous bath

Reexamination Certificate

active

10476220

ABSTRACT:
Electroplating electrolyte compositions including CA•(nAl(C3H7)3(2−n)AlR3) where n is 0 and less than or equal to 2; C is Li, Na, K, Rb, Cs, NR′4, or mixtures thereof wherein R′ is H, CH3, C2H5, C3H7, C4H9, C5H11, C6H13, C7H15, C8H17, or mixtures thereof; A is H, F, Cl, Br, or mixtures thereof; R is H, halogen, CH3, C2H5, C3H7, C4H9, C5H11, C6H13, C7H15, C8H17, or mixtures thereof; and an aromatic hydrocarbon, aliphatic hydrocarbon, or mixtures thereof are described. Aluminum and magnesium/aluminum electroplating compositions including C•(nAl(C3H7)4(1−n)AlR4) where n is 0 and less than or equal to 1, where C is a cation such as, li, Na, K, Rb, Cs, or mixtures thereof; R is H or an alkyl such as, CH3, C2H5, C3H7, C4H9, C5H11, C6H13, C7H15, C8H17, or mixtures thereof are also described. The aluminum and magnesium/aluminum electroplating compositions formulation can include a solvent such as, an aromatic hydrocarbon, aliphatic hydrocarbon, or mixtures thereof.

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“The Principles and Techniques of Electrolytic Aluminum Deposition and Dissolution in Organoaluminum Electrolytes”, Lehmkuhl et al.Advances in Eletrochemical Science and Engineering, vol. 3, pp. 165-221 (1994).

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