Lapho intambo yethusi ye-PCB iwa, zonke izinhlobo ze-PCB zizophikisana ngokuthi kuyinkinga ye-laminate futhi zidinga izitshalo zabo zokukhiqiza ukuthi zithwale ukulahlekelwa okubi.Ngokusho kweminyaka eminingi yesipiliyoni sokuphatha isikhalazo samakhasimende, izizathu ezijwayelekile zokuwa kwe-PCB yethusi yilezi ezilandelayo:
1,Izici zenqubo yefekthri ye-PCB:
1), ucwecwe lwethusi luqoshwe ngaphezulu.
I-Electrolytic copper foil esetshenziswa emakethe imvamisa ifakwe uthayela ohlangothini olulodwa (okwaziwa kakhulu ngokuthi ucwecwe lomlotha) kanye nocwecwe lwethusi oluhlangothini olulodwa (olwaziwa ngokujwayelekile ngokuthi ucwecwe olubomvu).Ukwenqatshwa kwethusi okuvamile kuvamise ukuba ucwecwe lwethusi oluvundisiwe ngaphezu kuka-70UM.Akuzange kube khona ukwenqatshwa kwe-batch yethusi ye-foil ebomvu ne-ashing foil ngaphansi kwe-18um.Lapho umklamo wesifunda ungcono kunomugqa wokugqamisa, uma ukucaciswa kwe-foil yethusi kushintsha futhi imingcele ye-etching ihlala ingashintshiwe, isikhathi sokuhlala se-foil yethusi kusixazululo se-etching sizoba side kakhulu.
Ngenxa yokuthi i-zinc iyinsimbi esebenzayo, lapho ucingo lwethusi oluku-PCB lucwiliswe kusixazululo sokucwiliswa isikhathi eside, luzoholela ekugqwaleni komugqa okungaphezulu, okuholela ekuphenduleni okuphelele komugqa omncane osekela izingqimba ze-zinc kanye nokuhlukaniswa nomugqa. i-substrate, okungukuthi, ucingo lwethusi luyawa.
Esinye isimo ukuthi ayikho inkinga ngamapharamitha wokunamathisela we-PCB, kodwa ukuwashwa kwamanzi nokomiswa ngemva kokuwashwa akukuhle, okuholela ekutheni ucingo lwethusi luzungezwe nesixazululo esisele sokunamathisela endaweni yangasese ye-PCB.Uma ingelashwa isikhathi eside, izophinde ikhiqize ukugqwala okukhulu kocingo lwethusi bese iphonsa ithusi.
Lesi simo ngokuvamile sigxile emgwaqeni omncane noma esimweni sezulu esimanzi.Amaphutha afanayo azovela kuyo yonke i-PCB.Khipha ucingo lwethusi ukuze ubone ukuthi umbala wendawo ethintana nayo nesendlalelo sesisekelo (okungukuthi indawo ebizwa ngokuthi i-coarsened) ushintshile, ohlukile kumbala we-foil yethusi evamile.Okubonayo umbala wethusi wangempela wongqimba olungezansi, futhi amandla e-peel ecwecwe lethusi emgqeni owugqinsi nawo ajwayelekile.
2),Ukushayisana kwendawo kwenzeka kwinqubo yokukhiqiza ye-PCB, futhi ucingo lwethusi luhlukaniswa ne-substrate ngamandla omshini angaphandle.
Kunenkinga ngokumiswa kwalokhu kusebenza kabi, futhi intambo yethusi ewile izoba nokuhlanekezela okusobala, noma imihuzuko noma izimpawu zokushayisana ohlangothini olufanayo.Khipha ucingo lwethusi engxenyeni embi bese ubheka ucwecwe lwethusi olungaphezulu.Kungabonakala ukuthi umbala we-foil ye-copper surface rough ujwayelekile, ngeke kube khona ukugqwala ohlangothini, futhi amandla okuhlubula kwe-foil yethusi ajwayelekile.
3), idizayini yesekethe ye-PCB ayinangqondo.
Ukuklama imigqa emincane kakhulu nge-foil yethusi ewugqinsi kuzophinde kubangele ukucishwa komugqa okweqile kanye nokwenqatshwa kwethusi.
2,Isizathu senqubo ye-laminate:
Ngaphansi kwezimo ezijwayelekile, inqobo nje uma isigaba sokushisa esishisayo esishisayo se-laminate sidlula imizuzu engama-30, ucwecwe lwethusi kanye neshidi eliphulukisiwe kuhlanganiswe ngokuphelele, ngakho ukucindezela ngokuvamile ngeke kuthinte amandla okubopha phakathi kwecwecwe lethusi kanye i-substrate ku-laminate.Kodwa-ke, ngesikhathi sokukhishwa kwe-lamination kanye nokupakisha, uma i-PP ingcolile noma indawo eqinile ye-foil yethusi yonakalisiwe, izophinde iholele ekuqineni okunganele kokubopha phakathi kwe-copper foil kanye ne-substrate ngemva kokugcoba, okuholela ekuphambukeni kokubeka (kuphela amapuleti amakhulu) noma izintambo zethusi eziwa ngezikhathi ezithile, kodwa ngeke kube khona okungavamile kumandla wekhasi lefoyili yethusi eduze kokungaxhunyiwe ku-inthanethi.
3, Laminate isizathu impahla eluhlaza:
1),Njengoba kushiwo ngenhla, ucwecwe lwethusi olujwayelekile lwe-electrolytic lufakwa uthayela noma imikhiqizo egcwele ithusi yocwecwe loboya.Uma inani eliphakeme le-wool foil lingajwayelekile ngesikhathi sokukhiqiza, noma amagatsha ekristalu enamathelayo empofu ngesikhathi sokucwebezeliswa kwe-galvanizing / ithusi, okuholela ekungeneni kwamandla ekhasi ecwecwe lethusi ngokwalo.Ngemuva kokuthi ucwecwe olubi lucindezelwe ku-PCB, intambo yethusi izowa ngaphansi komthelela wamandla angaphandle ku-plug-in yefekthri kagesi.Lolu hlobo lokujikijela ithusi alulungile.Lapho ucingo lwethusi lukhunyulwa, ngeke kube nokugqwala okusobala ohlangothini endaweni emagebhugebhu ye-foil yethusi (okungukuthi indawo yokuthintana ne-substrate), kodwa amandla ekhasi ayo yonke i-foil yethusi ayoba mabi kakhulu.
2),Ukuguquguquka okungalungile phakathi kwe-foil yethusi ne-resin: kwamanye ama-laminates anezici ezikhethekile, njengeshidi le-HTG, ngenxa yezinhlelo ezahlukene ze-resin, i-ejenti yokwelapha esetshenziswayo ngokuvamile i-PN resin.Isakhiwo seketango lamangqamuzana e-resin silula futhi idigri yokuxhumanisa isiphambano iphansi ngesikhathi sokwelashwa.Kubophezelekile ukusebenzisa i-foil yethusi ene-peak ekhethekile ukuyifanisa.Lapho ucwecwe lwethusi olusetshenziswa ekukhiqizeni i-laminate aluhambisani nesistimu ye-resin, okuholela ekuqineni kwekhasi okwanele kwe-foil yensimbi eboshwe epuletini, nocingo lwethusi olubi oluwayo lapho lufaka.
Isikhathi sokuthumela: Aug-17-2021