how to make a pcb
DESCRIPTION
PRINTED CIRCUIT BOARD A PCB has copper tracks connecting the holes where components need to be placed. To build using a PCB you must make sure components are soldered correctly into the spaces designed for them. The are designed specifically for a circuit.TRANSCRIPT
How to make a PCB PRINTED CIRCUIT BOARD A PCB has copper tracks
connecting the holes where components need to be placed. To build
using a PCB you must make sure components are soldered correctly
into the spaces designed for them. The are designed specifically
for a circuit. The Manufacturing Process
Design Artwork PCB Etching Drilling Soldering Design Circuit boards
are designed by electronics engineers and drawn up using CAD
circuit software. Artwork The computer drawing is converted into an
image with connecting tracks. The finished image is printed onto
acetate ready for manufacture. Artwork Manufacture The acetate is
transferred onto a copper covered board. The PCB is etched to
create the component positions on the board and the tracks ready
for soldering. Drilling After etching, the board is drilled ready
for the components to be mounted. Soldering Finally, components are
placed onto the board and soldered into position. Surface Mount
Technology
SMT is the process used to mass manufacture PCBs. Components are
soldered directly onto the board instead of drilling holes and
placing the components. Surface Mount Technology
Solder applied to board and robots are used to PICK and PLACE
components into position. Board is heated to fix components in
place. Surface Mount Technology
Why? Surface Mount Technology
Reduced labour, reduces manufacture costs. Components can be
smaller + lighter. Less human effort / higher accuracy. Robots can
be used! More complex boards on less space.