Mfundo ndondomeko ya PCB bolodi kapangidwe ka SMT chip processing kumafuna chidwi chapadera. Chimodzi mwa zolinga zazikulu za kamangidwe ka dera schematic ndi kupereka netlist kamangidwe ka bolodi dera PCB, ndi kukonzekera maziko a kamangidwe ka bolodi pcb. The ndondomeko kamangidwe ka matabwa Mipikisano wosanjikiza PCB dera matabwa kwenikweni chimodzimodzi ndi wamba PCB matabwa. Kusiyanitsa ndiko kuti njira yoyendetsera chizindikiro chapakati ndi kugawanika kwa magetsi amkati ayenera kuchitika. Pazonse, kapangidwe ka bolodi lamagawo ambiri a PCB amagawika m’njira zotsatirazi:

1. Kukonzekera kwa bolodi la dera makamaka kukonzekera kukula kwa thupi la pcb board, mawonekedwe a phukusi la chigawocho, njira yopangira chigawocho, ndi mawonekedwe osanjikiza, ndiko kuti, bolodi limodzi lokha, bolodi lamagulu awiri ndi bolodi lamitundu yambiri.

2. Kuyika kwa magawo ogwirira ntchito kumatanthawuza kukhazikitsidwa kwa magawo ogwirira ntchito ndikusintha magawo a ntchito. Kukhazikitsa magawo a chilengedwe cha pcb molondola komanso momveka bwino kungathe kubweretsa mwayi waukulu pamapangidwe a bolodi ladera ndikuwongolera magwiridwe antchito.

3. Kapangidwe kagawo ndikusintha. Pambuyo pa nthawi yomwe ntchitoyo yakonzeka, mndandanda waukonde ukhoza kutumizidwa ku pcb, kapena mndandanda waukonde ukhoza kutumizidwa mwachindunji muzithunzi zachidule pokonzanso pcb. Kapangidwe kagawo ndikusintha ndi ntchito zofunika kwambiri pakupanga kwa PCB, zomwe zimakhudza mwachindunji magwiridwe antchito monga mawaya otsatizana ndi kugawanika kwa gawo lamagetsi lamkati.

4. Malamulo opangira ma waya amakhazikitsidwa, makamaka kuti akhazikitse mitundu yosiyanasiyana ya waya wozungulira, m’lifupi mwa waya, ma waya ofananirako, mtunda wachitetezo pakati pa mawaya ndi ziwiya, ndi kukula, ndi zina zambiri, mosasamala kanthu za njira yolumikizira yomwe imatengera, malamulo amawaya ndi ofunikira. . Chinthu chofunika kwambiri, malamulo abwino a waya amatha kuonetsetsa chitetezo cha kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe kake.

5. Ntchito zina zothandizira, monga kuyika mkuwa ndi kudzaza misozi, komanso ntchito yokonza zolemba monga kutulutsa lipoti ndi kusunga kusindikiza. owona awa angagwiritsidwe ntchito kufufuza ndi kusintha matabwa PCB dera, ndipo angagwiritsidwenso ntchito monga mndandanda wa zigawo anagula.

Malamulo opangira ma waya

1. Jambulani malo opangira mawaya mkati mwa 1mm kuchokera pamphepete mwa bolodi la PCB, ndipo mkati mwa 1mm kuzungulira dzenje lokwera, mawaya amaletsedwa;

2. Chingwe chamagetsi chiyenera kukhala chachikulu momwe chingathere ndipo sichiyenera kuchepera 18mil; m’lifupi la mzere wa chizindikiro sikuyenera kuchepera 12mil; zolowetsa za CPU ndi zotulutsa siziyenera kuchepera 10mil (kapena 8mil); kutalika kwa mizere sikuyenera kuchepera 10mil;

3. Yachibadwa kudzera si osachepera 30mil;

4. Pawiri mu-line: pedi 60mil, pobowo 40mil; 1/4W kukana: 51 * 55mil (0805 pamwamba phiri); pamene mu mzere, pedi 62mil, kabowo 42mil; electrodeless capacitor: 51 * 55mil (0805 pamwamba phiri); Mukakhala pamzere, pad ndi 50mil ndipo pobowo ndi 28mil;

5. Zindikirani kuti mzere wamagetsi ndi mzere wapansi uyenera kukhala wozungulira momwe zingathere, ndipo mzere wa chizindikiro suyenera kutsekedwa.