To make the PCB itself, he first coated a piece of copper clad board with black spray paint. Using the laser cutter at the makerspace, he was then able to blast away the paint, leaving behind the ...

Develop the board in Sodium Hydroxide solution (about 10 seconds). Rinse the board with clean water; Place in a heated etching tank of Ferric Chloride (15-45 minutes). This will remove unwanted ...

The current PCB Marking systems built by CMS are Class I systems that can effectively mark onto all types of PCB, including FR-4, CEM-1, phenolic paper, ceramic substrates, and solder mask substrates.

The board unanimously agreed on a plan that would "encapsulate" the steel columns in the school after removing the PCB-laden fire retardant foam sprayed on the steel framing back when the school was ...