Uyilwa njani isithuba sokhuseleko sePCB?
Izithuba zokhuseleko ezinxulumene nombane
1. Isithuba phakathi kwesekethe.
Ngomthamo wokucubungula, isithuba esincinci phakathi kweengcingo kufuneka singabi ngaphantsi kwe-4mil. Isithuba somgca omncinci ngumgama ukusuka kumgca ukuya kumgca kunye nomgca ukuya kwiphedi. Kwimveliso, inkulu kwaye ingcono, idla ngokuba yi-10mil.
2.Idayamitha yomngxuma wePad kunye nobubanzi
Ububanzi bepadi abuyi kuba ngaphantsi kwe-0.2mm ukuba umngxuma wenziwa ngoomatshini, kwaye ungabi ngaphantsi kwe-4mil ukuba umngxuma we-laser ugrunjwa. Kwaye ukunyamezelana kwedayamitha yomngxuma kuhluke kancinane ngokwepleyiti, ngokubanzi kunokulawulwa ngaphakathi kwe-0.05mm, ububanzi obuncinane bepadi abuyi kuba ngaphantsi kwe-0.2mm.
3.Isithuba phakathi kweePads
Isithuba kufuneka singabi ngaphantsi kwe-0.2mm ukusuka kwiphedi ukuya kwiphedi.
4.Isithuba phakathi kobhedu kunye nomphetho webhodi
Umgama phakathi kobhedu kunye ne-PCB edge kufuneka ungabi ngaphantsi kwe-0.3mm. Cwangcisa umgaqo wesithuba somba kwiphepha lolwandlalo lweBhodi yeMithetho yoYilo
Ukuba ubhedu lubekwe kwindawo enkulu, kufuneka kubekho umgama ohlayo phakathi kwebhodi kunye nomda, odla ngokumiselwa kwi-20mil. ibhodi yesekethe egqityiweyo, okanye ukunqanda ukwenzeka kokujiya okanye umbane omfutshane ngenxa yesikhumba sobhedu esiveziweyo kumphetho webhodi, iinjineli zihlala zinciphisa ibhloko yobhedu kwindawo enkulu nge-20mil xa kuthelekiswa nomda webhodi, endaweni yokuba ebeka ulusu lobhedu yonke indlela ukuya emphethweni webhodi.
Zininzi iindlela zokwenza oku, njengokuzoba umaleko wokugcina kwincam yebhodi kunye nokuseta umgama wokugcina. Indlela elula yaziswa apha, oko kukuthi, imigama eyohlukeneyo yokhuseleko imiselwe izinto zokubeka ubhedu. Umzekelo, ukuba isithuba sokhuseleko sepleyiti yonke sisetelwe kwi-10mil, kwaye ukubekwa kobhedu kumiselwe kwi-20mil, isiphumo sokucutheka kwe-20mil ngaphakathi komphetho wepleyiti sinokufezekiswa, kwaye nobhedu olufileyo olunokuthi luvele kwisixhobo lunokubakho. isusiwe.