How were PCB's first designed?
manually
What is it called if a board has no embedded parts?
printed wiring board
What is the acronym for that?
PWB
Is there another name for it?
etched wiring board
What is it called when there are electronic parts?
printed circuit assembly
Are there other names for it?
printed circuit board assembly or PCB assembly (PCBA
What is the IPC preferred term?
circuit card assembly
What is the term preferred for backplanes?
backplane assemblies
How are PCBs manually created?
creating a photomask on a clear mylar sheet
How much bigger than it's real size?
two or four times
What is used to make traces?
component pin pads
What helps in the layout?
Pre-printed non-reproducing grids on the mylar
How is a board fabricated?
finished photomask was photolithographically reproduced onto a photoresist coating on the blank copper-clad boards.
Is the term used formally for assembled boards?
No
How are component pin pads laid out?
on the mylar
What routes it to connect the pads?
traces
What term isn't used much anymore?
printed wiring board
What is the term used informally for?
bare and assembled boards.
Is the mylar used opaque?
No
What kinds of transfers are used?
Rub-on dry transfers