Browse Prior Art Database

Micro-Clean Work Station With Point-Of-Use Air Cleansing

IP.com Disclosure Number: IPCOM000040638D
Original Publication Date: 1987-Dec-01
Included in the Prior Art Database: 2005-Feb-02

Publishing Venue

IBM

Related People

Authors:
Hecht, LC Kolesinskas, FP Rookwood, D Wagner, F [+details]

Abstract

Printed circuit boards are constructed by progressively laminating layers of copper and prepreg sheets together under conditions of heat and pressure in a lamination press. Prior to the lamination procedure, the individual sheets of copper and prepreg are interleaved at a layup station. Because any contaminants may cause circuit board defects, the layup station area must be maintained at minimum levels of all foreign matter. This is typically accomplished through the use of conventional clean room methods. However, contamination continues to be a concern as various fibers and debris from raw materials used to make the laminates are carried into the clean room environment via the operators' garments.