Yintoni umgangatho ukukhetha amacandelo kunye nemathiriyeli xa indibano PCB?

Ukusetyenzwa kwendibano yePCB kubandakanya uyilo lwesekethe eprintiweyo, iprototyping yePCB,SMT PCB ibhodi, ukufunwa kwecandelo kunye nezinye iinkqubo.Ke, ngawaphi amacandelo okucubungula ibhodi yePCBA kunye nemigangatho yokukhetha i-substrate?

1. Ukukhethwa kwamacandelo

Ukukhethwa kwamacandelo kufuneka kuthathele ingqalelo epheleleyo indawo eyiyo ye-SMB, kwaye amacandelo aqhelekileyo kufuneka akhethwe kangangoko kunokwenzeka.Amacandelo amancinci akufuneki alandelwe ngobumfama ukuze aphephe ukunyuka kweendleko.Izixhobo ze-IC kufuneka ziqaphele ukuba i-pin shape kunye ne-pin izithuba;QFP kunye ngaphantsi kwe 0.5mm pin isithuba kufuneka ithathelwe ingqalelo ngononophelo, ungasebenzisa ngqo BGA iphakheji.

Ukongezelela, ifom yokupakisha yamacandelo, i-solderability ye-PCB, ukuthembeka kwendibano ye-SMT PCB, kunye nomthamo wokuthwala ukushisa kufuneka kuthathelwe ingqalelo.Emva kokukhetha amacandelo, i-database yamacandelo kufuneka isekwe, kubandakanywa ubungakanani bofakelo, ubungakanani bephini kunye nomvelisi we-SMT kunye nezinye iinkcukacha ezifanelekileyo.

2.Ukukhethwa kwezinto ezisisiseko zePCB

Izinto ezisisiseko ziya kukhethwa ngokwemiqathango yenkonzo ye-SMB kunye neemfuno zokusebenza koomatshini kunye nombane.Inani lemibhobho yefoyile yobhedu (eyodwa, kabini okanye i-multi-layer) ye-substrate inqunywe ngokwesakhiwo se-SMB;ubukhulu be-substrate bunqunywe ngokobukhulu be-SMB kunye nomgangatho wamacandelo kwindawo nganye yeyunithi.Xa ukhetha ama-substrates e-SMB, izinto ezinjengeemfuno zokusebenza kombane, ixabiso le-Tg (iqondo lobushushu beglasi), i-CTE, ukucaba kunye nexabiso njl…

Oku kungasentla sisishwankathelo esifutshane seindibano yebhodi yesiphaluka eprintiweyoamacandelo okucubungula kunye nemigangatho yokukhetha i-substrate.Ukufumana iinkcukacha ezithe vetshe, ungandwendwela ngqo kwiwebhusayithi yethu: www.pcbfuture.com ukufunda ngakumbi!