Please use this identifier to cite or link to this item: https://scholar.utcc.ac.th/handle/6626976254/488
Title: Development of an Ultraviolet Exposure Machine for the Printed Circuit Board Fabrication Industry
Authors: Tunwannarux, Amon 
Issue Date: 2007
Publisher: University of the Thai Chamber of Commerce
University of the Thai Chamber of Commerce
Source: Amon Tunwannarux (2007) Development of an Ultraviolet Exposure Machine for the Printed Circuit Board Fabrication Industry. UTCC Engineering Research Papers.
Journal: UTCC Engineering Research Papers
Abstract: This article proposes a design and development of the UV exposure machine for ThePrinted Circuit Board (PCB) fabrication industry. This UV exposure machine can exposedouble sides simultaneously and has the exposure timing Qontrol and the lamp powercontrol system. During the exposure time. the power of lamp will be controlled at 2 kw.For energy saving and extend lamp life, the power of lamp will be reduced when usersregister the pattern film. It is suitable for two processes in the PCB fabrication. whichare the dry film exposure process to create the copper circuit and the exposureprocess to generate the solder mask. All devices and equipment used in this machinecan be bought from a local market, so it gives us low costs in implementation andmaintenance. The experimental results are very satisfied for double sides plated throughhole PCB fabrication with 5 mil (5/1 000 inch) fine line and the biggest panel size of 18x24sq.in. With UV lamp 2 kw/side, the dry film exposure time is only 11 seclpiece and thesolder mask exposure time is 75 seclpiece. That is why this UV exposure machine isvery practical for medium to large scale PCB industry.
URI: https://scholar.utcc.ac.th/handle/6626976254/488
ISSN: 1906-1625
Rights: This work is protected by copyright. Reproduction or distribution of the work in any format is prohibited without written permission of the copyright owner.
Appears in Collections:EN: Journal Articles

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