Abstract
The manual pre-sensitizing method usually takes about 30 minutes to an hour, which is very time-consuming and difficult since finding services that print on acetate film is challenging. Implementing manual procedures is also prone to inaccurate results and even exposes the user to various health and safety hazards. Instead of utilizing an acetate film, a transparent monitor was used as the layout mask by displaying the layout on it and letting the UV light pass through to the transparent areas. Exposing, developing, and etching were automated, which reduced potential risks and hazards. With automation and LCD-Masked Based Lithography, the process of printing layouts on acetate film for layout masking can be eliminated, and printing layouts can be done safely and conveniently. The system could etch layouts on pre-sensitized PCBs within 16 minutes, faster than the manual method. Etched PCBs have 100% accuracy and 84% precision. Essentially, the system has obtained a weighted mean of 3.69 from the student respondents and 3.57 from the professional respondents, which, based on its equivalent descriptive rating, implies an excellent performance for achieving its objectives.
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