The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 24, 1991
Filed:
Jun. 18, 1990
Setsuko Takahashi, Ichikawa, JP;
Isao Saeki, Ichikawa, JP;
Kikuko Tanaka, Ichikawa, JP;
Kayoko Oku, Ichikawa, JP;
Shoichiro Mori, Ami, JP;
Kazuhiko Ida, Ami, JP;
Katsuhiko Ohara, Tokyo, JP;
Fujio Matsui, Tokyo, JP;
Hitoshi Suzuki, Ami, JP;
Nisshin Steel Co. Ltd., Tokyo, JP;
Mitsubishi Petrochemical Co. Ltd., Tokyo, JP;
C. Uyemura and Co. Ltd., Osaka, JP;
Abstract
There is disclosed a non-aqueous electrolytic aluminum plating bath composition comprising an aluminum halide and a nitrogen-containing heterocyclic onium halide compound and containing an additive selected from the group consisting of an inorganic halide compound, aromatic aldehyde, ketone or carboxylic acid, an unsaturated heterocyclic compound containing more than one nitrogen atom, an unsaturated heterocyclic compound containing a sulfur atom, an aromatic hydrocarbon compound containing a sulfur atom, an aromatic hydrocarbon compound containing an amino group and an aromatic amine; and further optionally an organic polymer. The bath composition is easy in maintenance, has good covering power, and enables smooth plating with low current density.