Browse Prior Art Database

Universal Tray for Registration of Printed Circuit Boards in Photo-Tools

IP.com Disclosure Number: IPCOM000113739D
Original Publication Date: 1994-Sep-01
Included in the Prior Art Database: 2005-Mar-27
Document File: 2 page(s) / 42K

Publishing Venue

IBM

Related People

Costello, TJ: AUTHOR [+4]

Abstract

A method and the hardware for exposing photo-tools (artwork) on printed circuit boards is disclosed. The Universal Tray System allows for rapid line-up and vacuum draw down of the photo-tools to the panels.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 100% of the total text.

Universal Tray for Registration of Printed Circuit Boards in Photo-Tools

      A method and the hardware for exposing photo-tools (artwork) on
printed circuit boards is disclosed.  The Universal Tray System
allows for rapid line-up and vacuum draw down of the photo-tools to
the panels.

      As shown in the Figure, the Universal Tray System is composed
of an Overall Base Table (Reference #1) which is used with a Printed
Circuit Photo Printer.  It may be used with different types and makes
of industry available photo printers.  The photo-tools (artwork) and
panels are placed on the Bottom Glass Insert (Reference #2).  The Top
Cover Plate (Reference #3) is closed down onto the panel and
photo-tool.

      The Movable Block (Reference #4) utilizes 3 rotation
micrometers to provide accurate X, Y, and theta registration of the
photo-tool to the panel.  The movable block is part of the area which
is under vacuum which allows for less vacuum loss during processing.

      When the photo tool and panel are properly registered to one
another, a vacuum is actuated which properly secures the photo-tool
to the panel.  Once the Overall Base Table is put into position in
the photo printer, the actual exposing of the photo-tool to the panel
may take place.