PCB fabrication unit for electronics circuit prototyping

Abstract

PCB (Printed Circuit Board) is the backbone of electronics fabrication industry. Tremendous research in PCB fabrication technique has contributed in the reliable and accurate PCB fabrication. There are numerous PCB fabrication techniques available for PCB prototyping. The technique used here to fabricate PCB is UV lithography; the lithography is worldwide accepted technique by semiconductor industry for IC (Integrated Chip) fabrication. Lithography technique uses photosensitive material (Photoresist) coated subject to transfer the required pattern. It is kind of pattern transfer technique with the help of radiation source having wavelength in the range of UV spectrum. The aim of this work is to fabricate low cost PCB fabricating unit for research and educational use. The low cost PCB prototyping equipment is fabricated and tested for its performance. The unit is evaluated, calibrated and automated for its optimum performance to make precise PCBs with better resolution and accuracy. Overviews of Different PCB fabrication techniques for electronics product prototyping are also highlighted.