SO-JAM@finou.oulu.fi (JACOB MATTHAN) (06/01/91)
At the Microelectronics Laboratory here at the University of Oulu we have been working on Packaging Techniques in Microelectronics for over 15 years. Recently we have been getting more and more requests to develop techniques for putting down conductor lines at widths less than 100 microns, the traditional limit of the screen printing technique. No doubt, in the Laboratory environment we can p rint down to 30 microns but this is not reproducible in the factory environment . We have therefore started a research project called Fineline Techniques where we intend to look at possible new techniques to achieve commercial printabilit y of conductor lines down to 20 microns. We will be looking at using our laser facility as well as printing techniques such as pad printing, ink jet printing, etc. I wonder if anyone out there has any data which would help us stop redisc overing the wheel. Published papers, names of persons and institutions, etc. in this are would be useful. Thanks in advance. JACOB MATTHAN, PROJECT LEADER - NEW FINELINE TECHNIQUES, Acting Chief Engineer, Microelectronics Laboratory, Department of Electrical Engineering, University of Oulu, OULU 90570, FINLAND. Tel: +358 - 81 - 35 25 24; Fax: +358 - 81 - 56 12 78.