PCB Libraries, Inc. | https://www.pcblibraries.com/Forum/pcb-design-in-the-1970s_topic2333.html
. The PCB holes were manually drilled using a drill press and the holes were un-plated. The vias had to have a bare copper wire crimped and soldered on both sides
PCB Libraries, Inc. | https://www.pcblibraries.com/Forum/pcb-design-in-the-1970s_topic2333_post9608.html
. The PCB holes were manually drilled using a drill press and the holes were un-plated. The vias had to have a bare copper wire crimped and soldered on both sides
PCB Libraries, Inc. | https://www.pcblibraries.com/forum/pcb-design-in-the-1970s_topic2333_post11063.html
. The PCB holes were manually drilled using a drill press and the holes were un-plated. The vias had to have a bare copper wire crimped and soldered on both sides
PCB Libraries, Inc. | https://www.pcblibraries.com/forum/pcb-design-in-the-1970s_topic2333.html
. The PCB holes were manually drilled using a drill press and the holes were un-plated. The vias had to have a bare copper wire crimped and soldered on both sides
PCB Libraries, Inc. | https://www.pcblibraries.com/forum/topic2333&OB=ASC.html
. The PCB holes were manually drilled using a drill press and the holes were un-plated. The vias had to have a bare copper wire crimped and soldered on both sides
Imagineering, Inc. | https://www.pcbnet.com/blog/what-is-the-pcb-fabrication-process/
. Laser direct imaging exposes certain parts of the board to light in the shape of the PCB pattern. Any unexposed parts of the board will develop off, leaving the remaining film as an etch barrier The remaining film serves as an etch barrier that will be removed from the exposed copper to form the copper circuitry
Imagineering, Inc. | https://www.pcbnet.com/quote/board-quote-china/?cpn=1
. Specs: FR4, 2 & 4 layers, max.60 sqin., max. 14in length, 0.062",1 Oz Cu., Smt pitch minimum 0.025" smallest hole 0.015", all Plated holes, smallest trace/space
Imagineering, Inc. | https://www.pcbnet.com/quote/board-quote-usa/?cpn=1
. Specs: FR4, 2 & 4 layers, max.60 sqin., max. 14in length, 0.062",1 Oz Cu., Smt pitch minimum 0.025" smallest hole 0.015", all Plated holes, smallest trace/space
Imagineering, Inc. | https://www.pcbnet.com/blog/how-pcbs-are-made/
: This printed layer contains labels, symbols, and markings for components. Vias: Small holes drilled through the PCB, often plated with copper. Pads
Imagineering, Inc. | https://www.pcbnet.com/quote/board-quote/?cpn=1
0.025" smallest hole 0.015", all Plated holes, smallest trace/space 0.007", Green LPI Mask, White Top Silkscreen, Individual board
