Presensitized PC Board 6" x 6" Single Sided
These highly accurate, pre-coated positive acting printed circuit boards are constructed of 1/16" glass epoxy with 1 oz. (.0014") of copper per side. Simply attach your positive artwork, expose to a U/V light source (including sun lamps, the sun, special U/V light sources or even normal fluorescent lighting bulbs) and then develop. Develop with developer concentrate, part #340-144. The FR-4 material has a dielectric constant 3.6 at 1MHz.