Browse Prior Art Database

Laser Graphic Arts Machine

IP.com Disclosure Number: IPCOM000095302D
Original Publication Date: 1965-Nov-01
Included in the Prior Art Database: 2005-Mar-07
Document File: 2 page(s) / 22K

Publishing Venue

IBM

Related People

Kremen, SH: AUTHOR

Abstract

This laser arrangement generates a printed circuit pattern by impinging a shaped and deflected laser beam on photoresist on a printed circuit board.

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Laser Graphic Arts Machine

This laser arrangement generates a printed circuit pattern by impinging a shaped and deflected laser beam on photoresist on a printed circuit board.

Gas laser 11 generates beam 12 which is shaped by mask 13 into a round shape 14, for example. Beam 14 is converged by lens 15 and then deflected in X-Y directions by beam deflector 16. Finally converged beam 17 exposes the photoresist on board 18 to give a pattern. Deflector 16 is described in the January 1964 IBM Journal of Research and Development, pages 64-67. Deflector 16 is programmed to impinge the beam at the locations desired on the board.

Additional masks and corresponding lens are automatically substituted to give beams of different shapes. For example, a horizontal line is made by using a mask having a short horizontal opening and a cylindrical converging lens to shape and converge the laser beam which is then deflected. A programmed controller simultaneously provides the masks, lens and deflection to give the desired pattern.

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