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:
Apr. 15, 1986
Filed:
Dec. 07, 1984
Gerald C Laverty, Sunnyvale, CA (US);
Lev G Amusin, San Jose, CA (US);
National Semiconductor Corporation, Santa Clara, CA (US);
Abstract
The plating apparatus (10) includes a pair of loop belts (20,21) rotating on two sets of pulleys, each set of pulleys including pulleys (11,12), to drive a strip (40) to be stripe plated past a translatingly movable electrolyte manifold (41) containing a series of electrolyte inlet and outlet slots (70,71) in its strip-facing surface. Electrolyte is sprayed from the inlet slots through apertures (24) in a back-up layer of at least one of the belts and through a slot (22) formed between belt segments. Vacuum or air pressure inlets (78,96) are provided at the ends of the manifold to prevent egress of electrolyte from the nip between the pairs of belts. One pulley of each set of pulleys is adjustable to tension the belt and an intermediate roller arrangement is included between each of the pulleys in each set to monitor the belt tension and provide sufficient frictional holding contact between the belts and the workpiece strip and desired sliding contact between the belts and the manifold surface.