Patent · US Expired

Method of and arrangement for cleaning, activating and metallizing of bore holes in conductor boards

US4789405A · kind A · utility

14Cited by

4References

22Claims

0Family size

Assignee

SCHERING CORPORATION · US

Inventors

Horst Blasing · Berlin, DE
Walter Meyer · Bonndorf, DE

Key dates

Filing date	Aug 4, 1986
Grant date	Dec 6, 1988
Priority date	—
Expiry date	Aug 4, 2006

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S239/22
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

Cleaning, activating and metallizing of bore holes in conductor boards is performed by supplying a liquid treatment medium in form a standing wave onto a lower side of the conductor board by a surge line which is formed as a nozzle arranged under a transporting path and substantially normal to a transporting direction of the horizontally guided conductor board.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.