PCB &PCBA

PCB与PCBA有什么区别 ?

PCB指的是线路板，而PCBA指的是线路板插件组装，SMT制造工程。

一种是成品板，一种是裸板。

PCB(Printed Circuit Board)称为”印刷电路板”，由环氧玻璃树脂材料制成，最重要的还是电路，按其信号层数的不同，分为单面板、双面板和多面板，芯片等贴片元件就贴在PCB上。

PCBA可能理解为成品线路板，也就线路板上的工序都完成了后才能算PCBA。

Printed circuit board assembly, also known as PCBA, is the process of soldering or assembly of electronic components to a PCB or printed circuit board. A circuit board prior to assembly of electronic components is known as PCB. Once electronic components are soldered, the board is called Printed Circuit Assembly (PCA) or Printed Circuit Board Assembly (PCBA).

It has to be noted that assembly of a circuit board is different from manufacturing a circuit board. Manufacturing printed circuit boards involve several processes including PCB designing and creating PCB prototype. Once a PCB is ready, electronic components need to be soldered onto it before it can be used in any electronic equipment or gadget. This assembly of electronic components depends on type of circuit board, type of electronic components and purpose of the circuit board.

Things Needed for Printed Circuit Board Assembly

Following electronics parts and consumables are needed for PCB assembly –

Printed Circuit Board
Electronic components
Soldering materials including solder wire, solder paste, solder bar, solder preforms (depending on the type of soldering to be done)
Soldering flux
Soldering equipments including soldering station, wave soldering machine, SMT equipment, inspection and testing equipment etc.
Once all of the above equipment, electronic parts and all raw materials are arranged, it is time to start the assembly process.