PCB refers to the circuit board, and PCBA refers to the circuit board plug-in assembly, SMT process.
One is the finished board and the other is the bare board
PCB (Printed Circuit Board) is called "printed circuit board" and is made of epoxy glass resin material. It is divided into 4, 6, and 8-layer boards according to the number of signal layers. The most common is 4, 6-layer boards. Chip components such as chips are attached to the PCB.
PCBA may be understood as a finished circuit board, and PCBA can only be counted after the processes on the circuit board are completed.
PCBA = Printed Cirruit Board + Assembly.
In other words, the PCB blank board passes through the SMT and then passes through the entire process of the DIP plug-in, referred to as PCBA.
PCB (Printed Circuie Board) is the abbreviation of printed circuit board. Generally, the conductive pattern on the insulating material according to the predetermined design to make the printed circuit, the printed element or the combination of the two is called the printed circuit. A conductive pattern that provides electrical connection between components on an insulating substrate is called a printed circuit. In this way, the finished board of the printed circuit or printed circuit is called a printed circuit board, and is also called a printed board or a printed circuit board.
There are no parts on the standard PCB, and it is often called "Printed Wiring Board (PWB)".
