PCB etching is a process of removal of unwanted copper (Cu) from the circuit board. When I say unwanted, it is nothing but the non-circuit copper that is removed from the board. As a result, the desired circuit pattern is achieved.
As simple as it is, a prepreg is nothing but an insulation layer. Prepreg is a dielectric material that is sandwiched between two cores or between a core and a copper foil in a PCB, to provide the required insulation. You can call it as a binding material as well. It either binds two cores or a core and a copper foil.
Sending rockets to space is not science fiction anymore. In a few years, we will even all pack our bags to go to Mars on vacay with Elon. You still need the best printed circuit boards to make it up there in one piece, though.
When customers want to design HDI boards that are as compact as possible, there is often very little reliable guidance from the chip vendors. Heed the warnings of Texas Instruments: Consult board manufacturers from the start of any projects involving BGAs with a pin pitch of 0.4 mm and smaller.
IPC-2581 benefits both the designers and manufacturers in Industry 4.0. Michael Ford, European Marketing Director at Aegis Software Corporation, told us about the advantages when we met him during PCB West.
Bill Hargin and Don DeGroot are “working on an every-man’s VNA” for measuring the properties of PCB materials with the help of Sierra. Learn more in Bill’s interview!
SIGN UP FOR NEW ARTICLES AND UPDATES