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. Sahani ya msingi ya shaba imechapishwa na kutolewa nje ya mzunguko wa kuchoma.

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. Kwa hivyo tunahitaji kutengeneza mashimo kwenye ubao ili pini ziweze kupitia bodi kwenda upande mwingine, kwa hivyo pini za sehemu zimeunganishwa kwa upande mwingine.

Because of this, the front and back sides of such a PCB are called part surfaces and weld surfaces respectively. Bodi ya safu mbili inaweza kuonekana kama bodi mbili za safu moja zimeunganishwa pamoja, na vifaa vya elektroniki na wiring pande zote za bodi. Sometimes it is necessary to connect a single wire from one side to the other side of the board through a guide hole. Mashimo ya mwongozo ni mashimo madogo kwenye PCB iliyojazwa au kufunikwa na chuma ambayo inaweza kushikamana na waya pande zote mbili. 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. Shida ya kuunganisha mistari kati ya tabaka pia hukutana kwenye PCBS za safu nyingi, ambazo zinaweza pia kupatikana kupitia mashimo ya mwongozo.

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. Mashimo ya kipofu huunganisha tabaka kadhaa za PCBS za ndani kwa PCBS za uso bila kupenya bodi nzima. Mashimo ya kuzikwa yameunganishwa tu na PCB ya ndani, kwa hivyo mwanga hauonekani kutoka juu. Katika PCB yenye safu nyingi, safu nzima imeunganishwa moja kwa moja na waya wa ardhini na usambazaji wa umeme.

So we classify each layer as signal layer, power layer or ground layer. Ikiwa sehemu kwenye PCB zinahitaji vifaa tofauti vya umeme, kawaida huwa na zaidi ya safu mbili za nguvu na waya. The more PCB layers you use, the higher the cost. Of course, using more layers of PCBS helps to provide signal stability.