Manufacturing circuits are a process that takes time and can not be considered as "simple things". Although there are fans who are able to make their own tables at home with the right materials, they are usually not as complex as machine tools. Furthermore, it would be time-consuming to produce 20,000 PCBs. Below I briefly guide you through the process of the PCB assembly and the individual sections.
A PCB assembly, also known as a printed circuit board, when soldering electronic parts onto a PCB or printed circuit board. A circuit board not yet assembled with electronic components is referred to as a PCB or a printed circuit board, and after the plates have soldered parts, it is technically known as a printed circuit board or a printed circuit board.
Keep in that circuit board is not necessarily the same as circuit board manufacturing. There are several processes in the manufacture of PCBs that include the PCB design and the PCB prototype. Before the board is ready to use electronic devices or gadgets, the corresponding parts must be added for soldering. The type of components and the assembly process depends on the type of circuit board, the electronic components you want to connect and the electronic device that the board intends to add.
The PCB is ready, it's time for the various electronic components to be plugged in to be truly functional. This is sometimes referred to as PCBA or Printed Circuit Board Assembly.
1) Through-hole borehole: Component wires are inserted into the holes
2) Surface design: Components are placed on external surfaces or floors
However, in both construction types, component wires are electrically and mechanically fixed to molten Metal Solder PCB
Depending on the volume of sheets to be assembled, it determines that the components are soldered. If large production volumes are required, solderable parts can be carried out on the printed circuit board by machine placement. The machine distribution is performed by bulk wave soldering or reflow oven. Otherwise, if the production volume refers to smaller prototypes, in most cases manual brazing is only fine (the grid bars can not be soldered by hand).
Often, they are performed in a PCB assembly as some of the required electronic parts are only available through packing, while others are available only in surface mount packages. Additionally, it is a good reason to use both methods in the same assembly as hole mounting really provides greater power for electronic components that are likely to undergo some physical stress. If you know that the PCB will not undergo any physical stress, it may be more wise to use surface mounting techniques to take less space on the board.
Once the components are fully built up on the printed circuit board, testing is always the best way to make sure the card is working properly and the required performance. Here are some ways to get tested after assembly.
1) With a simple visual inspection, check that there is no electrical component in place. It's also a good time to check all soldering. (power off)
2) Analog Signature Analysis: When using a current-limited AC sine wave at two points of electrical components and circuitry. (power off)
4) Perform a functional test: check that the circuit board actually does what it is intended for. (power is on)
If some of the printed circuit boards do not match the above tests, not all will be lost. Find out where the problem is and replace the faulty components and / or the card to allow it to be transmitted. This is sometimes referred to as recycling.