Isikhala sokuphepha kukagesi sincike ikakhulukazi ezingeni lemboni yokwenza amapuleti, ngokuvamile angu-0.15mm. Eqinisweni, kungase kusondele nakakhulu. Uma isifunda singahlobene nesignali, inqobo nje uma kungekho isifunda esifushane futhi i-current yanele, i-current enkulu idinga i-wiring ebanzi kanye nesikhala.
1.Ibanga phakathi kwezintambo
Ibanga eliphakathi kwamakhondakta lidinga ukucatshangelwa ngokusekelwe emandleni okukhiqiza womkhiqizi we-PCB. Kutuswa ukuthi ibanga eliphakathi kwama-conductor libe okungenani ngu-4mil. Kodwa-ke, ezinye izimboni zingakhiqiza ngobubanzi belayini obuyi-3/3mil kanye nokuhlukaniswa kwemigqa. Ngokombono wokukhiqiza, yebo, inkulu iba ngcono ngaphansi kwezimo. I-6mil evamile ijwayelekile kakhulu.
2.Isikhala phakathi kwephedi nocingo
Ibanga phakathi kwephedi nomugqa ngokuvamile alikho ngaphansi kuka-4mil, futhi uma likhulu ibanga phakathi kwephedi nomugqa lapho kunesikhala, lingcono. Ngenxa yokuthi ukushiselwa kwephedi kudinga ukuvuleka kwewindi, ukuvuleka kwewindi kukhulu kuno-2mil wephedi. Uma ukuhlukaniswa kunganele, ngeke nje kubangele ukujikeleza okufushane kwesendlalelo somugqa, kodwa futhi kuholele ekuvezweni kwethusi komugqa.
3.Isikhala phakathi kwePad nePad
Isikhala phakathi kwephedi nephedi kufanele sibe ngaphezu kuka-6mil. Kunzima ukwenza ibhuloho le-solder stop-welding elinezikhala ezinganele zephedi, futhi i-IC pad yamanethiwekhi ahlukene ingaba nomjikelezo omfushane lapho i-weld ibhuloho elivulekile le-weld. Ibanga phakathi kwephedi yenethiwekhi kanye nephedi lincane, futhi akulula ukuhlukanisa izingxenye ezilungisiwe ngemuva kokuthi i-tin ixhunywe ngokugcwele ekushiseni.
4.Ithusi nethusi, ucingo, ukuhlukaniswa kwePAD
Ibanga phakathi kwesikhumba sethusi esiphilayo kanye nomugqa kanye ne-PAD likhulu kunalelo eliphakathi kwezinye izinto zesendlalelo somugqa, futhi ibanga phakathi kwesikhumba sethusi nomugqa kanye ne-PAD likhulu kuno-8mil ukuze kube lula ukukhiqiza nokukhiqiza. Ngenxa yokuthi ubukhulu besikhumba sethusi akudingekile ukwenza inani elikhulu, elikhudlwana futhi elincane alinandaba. Ukuze uthuthukise umkhiqizo wokukhiqiza wemikhiqizo, isikhala phakathi komugqa ne-PAD kusuka esikhumbeni sethusi kufanele sibe sikhulu ngangokunokwenzeka.
5.Isikhala socingo, i-PAD, ithusi kanye nomphetho wepuleti
Ngokuvamile, ibanga phakathi kwezintambo, i-pad nesikhumba sethusi kanye ne-contour line kufanele ibe nkulu kuno-10mil, futhi ngaphansi kuka-8mil kuzoholela ekuvezweni kwethusi emaphethelweni epuleti ngemva kokukhiqizwa nokubunjwa. Uma unqenqema lwepuleti kuyi-V-CUT, khona-ke isikhala kufanele sibe sikhulu kuno-16mil. Izintambo kanye ne-PAD akugcini nje ngokuvezwa ithusi elilula, umugqa osondele kakhulu onqenqemeni lwepuleti ungase ube mncane, okuholela ezinkingeni zokuthwala zamanje, i-PAD encane ithinta i-welding, okuholela ekushiseni okungalungile.`
