It is not difficult to learn PCB design. The software is just a tool. If you have computer foundation, you can learn how to use PCB software in two weeks. The key is to understand the electronic circuit, small series of suggestions can buy some video tutorials on the Internet, their own spare time while learning while operating, fan Billion video is good, choose a set of suitable for their own.

Speaking of PCB, many friends will think that it can be seen everywhere around us, from all household appliances, all kinds of accessories in computers to all kinds of digital products, as long as electronic products almost all use PCB, so what is PCB on earth? A PCB is a PrintedCircuitBlock, which is a printed circuit board for electronic components to be placed on. Tha plàta bonn copair air a chlò-bhualadh agus air a shnaidheadh ​​a-mach às a ’chuairt eitseachaidh.

PCB can be divided into single, double and multilayer boards. All kinds of electronics are integrated into the PCB. On a basic single-layer PCB, the parts are concentrated on one side and the wires are concentrated on the other. Mar sin feumaidh sinn tuill a dhèanamh sa bhòrd gus an urrainn dha na prìnichean a dhol tron ​​bhòrd chun taobh eile, gus am bi prìnichean nam pàirtean air an tàthadh chun taobh eile.

Because of this, the front and back sides of such a PCB are called part surfaces and weld surfaces respectively. Faodar bòrd dà-fhillte fhaicinn mar dà bhòrd aon-fhilleadh air an glaodhadh ri chèile, le co-phàirtean dealanach agus uèirleadh air gach taobh den bhòrd. Sometimes it is necessary to connect a single wire from one side to the other side of the board through a guide hole. Tha tuill treòrachaidh nan tuill bheaga anns a ’PCB air an lìonadh no air an còmhdach le meatailt a dh’ fhaodar a cheangal ri uèirichean air gach taobh. At present, many computer motherboards use 4 or even 6 layers OF PCB, while graphics cards generally use 6 layers of PCB. Many high-end graphics cards like nVIDIAGeForce4Ti series use 8 layers of PCB, which is the so-called multi-layer PCB. Thathas cuideachd a ’tachairt ris an duilgheadas a thaobh a bhith a’ ceangal loidhnichean eadar sreathan air PCBS ioma-shreath, a dh ’fhaodar a choileanadh tro thuill iùil.

Because of the multi-layer PCB, sometimes the guide holes do not need to penetrate the whole PCB. Such guide holes are called buried holes and blind holes because they only penetrate a few layers. Bidh tuill dall a ’ceangal grunn shreathan de PCBS a-staigh gu uachdar PCBS gun a bhith a’ dol tron ​​bhòrd gu lèir. Chan eil tuill tiodhlaichte ceangailte ach ris a ’PCB a-staigh, agus mar sin chan eil solas ri fhaicinn bhon uachdar. Ann am PCB multilayer, tha an còmhdach gu lèir ceangailte gu dìreach ris an uèir talmhainn agus an solar cumhachd.

So we classify each layer as signal layer, power layer or ground layer. Ma dh ’fheumas na pàirtean air a’ PCB solar cumhachd eadar-dhealaichte, mar as trice bidh barrachd air dà shreath cumhachd is uèir aca. The more PCB layers you use, the higher the cost. Of course, using more layers of PCBS helps to provide signal stability.