A professional who performs any combination of following tasks to print and etch conductive patterns on copper-faced plastic, fiberglass, or epoxy board to fabricate printed circuit boards (PCB's). Respnsibilities include:

• Cuts board to designated size, using sheet metal shears, following written or verbal instructions.
• Sands board and either places board in vapor degreaser or immerses board in chemical solution to clean and remove oxides and other contaminants.
• Sprays or brushes light-sensitive enamel on copper surface and places board in whirler machine to spread enamel evenly, or tends machine that flows light-sensitive resist over board.
• Laminates light-sensitive dry film to board, using heat and pressure equipment.
• Exposes board and circuit negative to light in contact printer for specified period of time to transfer image of circuit to board.
• Immerses exposed board in solution to develop acid-resistant circuit pattern on surface.
• Compares board to sample to verify development of pattern.
• Applies acid resist over sections of pattern not developed, using brush.
• Immerses board in acid or tends etching machine to etch conductive pattern on copper surface.
• Immerses board in solution to dissolve enamel.
• Drills holes in board, using drill press, following work sample, drawing, and diagrams.
• Installs hardware, such as brackets, eyelets, and terminals, using eyelet machine and hand arbors.
• Reduces circuit artwork prior to printing onto board, using reduction camera.
• Prints conductive pattern onto board, using silk screen printing device.
• Fabricates PCB used as prototype of production model.