Methods of making thin InSb films

Details Methods of making thin InSb films Methods of making thin InSb films

1992-08-07

1993-11-23

Niebling, John

Electrolysis: processes, compositions used therein, and methods

Electrolytic coating

Utilizing fused bath

204 61, 204 71, 205230, C25D 366

Patent

active

052641112

ABSTRACT:
A method of electrodepositing a film including the steps of immersing a conductive substrate opposite a counterelectrode in an organochloroindate melt comprising a salt of at least one metal selected from the group consisting of phosphorus, arsenic, and antimony, and an InCl.sub.3 -dialkylimidazolium chloride wherein the alkyl groups each comprise no more than four carbons, and the molar ratio of the InCl.sub.3 to the organic chloride ranges from about 45/55 to 2/3; and cathodizing said substrate at a potential selected to codeposit In and said metal. In addition, substitution of a small amount of InCl.sub.3 with a trichloride salt of another Group III metal can be employed to obtain deposits containing other Group III metals. For molar ratios of the metal salt to InCl.sub.3 other than 45/55, the melt is heated to 45.degree. C. or greater.

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