therein to the boiling point thereof; a hoist assembly for introducing a basket containing components to be cleaned into the first sump for a wash cycle and for introducing a basket into a second sump subse- quent to the wash cycle for a rinse cycle; and sub-surface spray means within the first sump for increasing the agitation of the wash solvent, the hoist a s sembly being pro- grammed to move the basket past they spray means during the wash cycle.

IVLIkNUFACTURE OF PRINTED C IRCUIT B O A R D S U.S. Patent 6,120,639. Sept. 19, 2000 R. Redline et al., assignors to MacDermid Inc., Waterbury, Conn.

A process for improving the adhe- sion of a copper surface to a resin- ous layer comprising contacting di- rectly with an adhesion promoting composition comprising a reducing agent and a metal selected from the group consisting of palladium and ruthenium, such that the adhesion promoting composition plates a layer of the metal selected directly upon the copper surface thereby creating a metal plated layer and the rea f t e r adher ing the meta l plated layer directly to the resinous layer; wherein the process occurs without the chemical function of a copper oxide conversion coating.

SURFACE P R E P A R A T I O N FOR P A I N T I N G , POWDER C O A T I N G , A N D A D H E S I V E B O N D I N G

U.S. Patent 6,123,782. Sept. 26, 2000 J.L. Rosengard, assignor to Raytheon Co., Lexington, Mass.

A method for providing the sur- face of aluminum-containing ma- terials with a chromate-free pro- t ec t ive coa t ing cons i s t ing of alkaline cleaning with a nonsili- cated alkaline cleaner, following by a rinse in hot water; deoxidiz- ing by immersing in a nonchro- mated deoxidizer at room temper- ature, followed by a rinse in hot water; and immersing in boiling water for a period of time ranging from 5 to 10 minutes to form a film of a luminum oxyhydroxide wherein the film provides a pro- tective coating.

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