Useta njani ububanzi bomgca we-PCB wiring?

Iintambo zePBB ziyinxalenye ebaluleke kakhulu kuyilo lwePCB. Abanye abahlobo abazi ukuba ingakanani ububanzi bomgca we-PCB obekwe ngokubanzi. Masazise ukuba ungakanani ububanzi bocingo lwe-PCB ngokubanzi obekwe ngokubanzi.

Ngokubanzi, kukho imiba emibini ekufuneka uyiqwalasele kububanzi bocingo lwe-PCB. Eyokuqala bubungakanani bangoku. Ukuba ukuhamba ngoku kukhulu, umkhondo awunakuba mncinci kakhulu; Okwesibini kukujonga ubungakanani bokwenza ibhodi kumzi-mveliso webhodi. Ukuba okwangoku kuncinci, umkhondo unokuba mncinci, kodwa ukuba ubhitye kakhulu, ezinye iifektri zebhodi yePCB azinakho ukuzenza, okanye zinokuzivelisa kodwa izinga lesivuno lenyukile, ke umzi webhodi webhodi kufuneka uthathelwe ingqalelo .

Yimalini ububanzi bentsimbi ye-PCB ngokubanzi ebekiweyo

Ngokubanzi, ububanzi bomgca kunye nokushiya umgca kulawulwa ukuya kwi-6 / 6mil, kwaye umngxunya yi-12mil (0.3mm). Uninzi lwabenzi bePCB banokuluvelisa, kwaye iindleko zemveliso ziphantsi.

Ububanzi obuncinci bomgca kunye nokushiya umgca kulawulwa kwi-4 / 4mil, kwaye umngxunya yi-8mil (0.2mm). Ngaphezu kwesiqingatha sabenzi bePCB banokuyivelisa, kodwa ixabiso liya kubiza kancinci kunangaphambili.

Ububanzi obuncinci bomgca kunye nokushiya umgca kulawulwa kwi-3.5 / 3.5mil, kwaye umngxunya yi-8mil (0.2mm). Kukho abenzi bePCB abambalwa abanokuvelisa, kwaye ixabiso liya kubiza kakhulu.

Ububanzi obuncinci bomgca kunye nokushiya umgca kulawulwa kwi-2 / 2mil, kwaye umngxunya yi-4mil (0.1mm). Abavelisi abaninzi be-pcb abanakuyivelisa. Olu hlobo lwexabiso lelona liphezulu.

Ukuba ububanzi bomgca busetwe ngokobuninzi be-PCB yoyilo, uxinano lincinci, kwaye ububanzi bomgca kunye nokushiya umgca kungacwangciswa ukuba kukhulu, kwaye uxinano lunokuseta lube lincinci:

1) 8 / 8mil, 12mil (0.3mm) ngokuba nge umngxuma.

2) 6 / 6mil, 12mil (0.3mm) ngokuba nge umngxuma.

3) 4 / 4mil, 8mil (0.2mm) ngokuba nge umngxuma.

4) 3.5 / 3.5mil, 8mil (0.2mm) ngokuba nge umngxuma.

5) 3.5 / 3.5mil, 4mil nge nge umngxuma (0.1mm, laser ukubhola).

6) 2 / 2mil, 4mil nge nge umngxuma (0.1mm, laser ukubhola).