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:
Jun. 21, 2005
Filed:
Mar. 21, 2001
Rolf Schroder, Burgthann, DE;
Reinhard DE Boer, Berlin, DE;
Hans-joachim Grapentin, Berlin, DE;
Regina Czeczka, Gross Glienicke, DE;
Rolf Schroder, Burgthann, DE;
Reinhard De Boer, Berlin, DE;
Hans-Joachim Grapentin, Berlin, DE;
Regina Czeczka, Gross Glienicke, DE;
Atotech Deutschland GmbH, Berlin, DE;
Abstract
The devices and methods of the art do not readily allow moistening of, removing gas bubbles from and/or increasing the transfer of material in through bores and/or pocket holes in printed circuit boards (PCB). Considerable problems are presented by the treatment of very narrow bores with high aspect ratios in particular. To overcome this problem a method was found that involves the following stages: the printed circuit boards PCB are passed through a processing plant on a horizontal conveying path and in one conveying planeby means of transportation meansand are thereby brought to contact a liquid for treatment, wherein mechanical pulses are directly transmitted to the printed circuit boards PCB via the transportation meansand/or via the liquid for treatment by means of pulse generating means