ukudizayina ibhodi yesekethe eprintiweyo (I-PCB) ngumsebenzi oqhelekileyo kwiinjineli ezininzi ze-elektroniki (EE). Ngaphandle kweminyaka yamava oyilo lwe-PCB, ukudala uyilo olusemgangathweni ophezulu lwentsebenzo oluqhutywa yi-PCB akukho lula. Zininzi izinto ekufuneka ziqwalaselwe, kwaye izinto zepleyiti yenye yazo. Izinto ezisisiseko ezisetyenziselwa ukwenza iPCBS zibaluleke kakhulu. Ngaphambi kokuvelisa, iipropathi zemathiriyeli kwimiba eyahlukeneyo kufuneka ziqwalaselwe, ezinje ngokuguquguquka, ukumelana neqondo lobushushu, i-dielectric rhoqo, amandla ombane, amandla eqine, ukunamathela njalo njalo. Ukusebenza nokudityaniswa kwebhodi yesekethe kuxhomekeke ngokupheleleyo kwizixhobo ezisetyenzisiweyo. Eli nqaku liphinde livavanye izixhobo zePCB. Ke hlala ubukele ezinye iinkcukacha.

Zeziphi iintlobo zezinto ezisetyenziswayo kwimveliso yePCB?

Olu luhlu lwezinto eziphambili ezisetyenziselwa ukwenza iibhodi zesekethe. Makhe sijonge.

UFr-4: I-FR imfutshane ukuba iFUME UMLILO. Yeyona esetyenziswa ngokuqhelekileyo izinto PCB kuzo zonke iintlobo zemveliso PCB. I-fiberglass eyomeleziweyo ye-epoxy laminate FR-4 yenziwa kusetyenziswa ilaphu le-fiberglass kunye nelangatye le-resin binder. Ezi zinto zithandwa kuba zibonelela ngombane ogqwesileyo kwaye unamandla oomatshini elungileyo. Le nto inika amandla eqine kakhulu. Iyaziwa ngokuvelisa kakuhle kunye nokufunxa ukufuma.

Fr-5: I-substrate yenziwe ngezinto eziqinisiweyo zeglasi kunye ne-epoxy resin binder. Olu lukhetho olufanelekileyo kuyilo lwebhodi yesekethe eyahlukeneyo. Isebenza kakuhle kwi-lead-free welding kwaye ineempawu ezintle zoomatshini kumaqondo aphezulu obushushu. Kuyaphawuleka ngenxa yokufunxa kwayo ukufuma okuphantsi, ukumelana neekhemikhali, iipropathi zombane ezigqwesileyo kunye namandla amakhulu.

UFr-1 no-FR-2: Wenziwe ngephepha kunye neephenolic compounds kwaye ulungele uyilo olunye lweebhodi zesekethe. Zombini ezi zixhobo zineempawu ezifanayo, kodwa i-FR2 ineqondo lobushushu elisezantsi kweglasi kune-FR1.

I-Cem-1: Lo mbandela ungoweqela lezinto ezidityanisiweyo ze-epoxy materials (CEM). Iseti iqulathe i-epoxy synthetic resin, ilaphu ye-fiberglass kunye nomxholo we-fiberglass. Imathiriyeli, esetyenziswa kwiibhodi zesekethe ezinamacala amabini, ayibizi kwaye iyabuyisa Idume ngokusebenza ngokugqwesileyo koomatshini kunye nombane.

I-Cem-3: Iyafana ne-CEM-1, le yenye yezinto ezidibeneyo ze-epoxy. Inempahla yedangatye ebuyisa umlilo kwaye isetyenziselwa ikakhulu iibhodi zesekethe ezinamacala amabini. Yomelele kancinci ngokomatshini kune-FR4, kodwa ixabiso layo lisezantsi kune-FR4. Ke ngoko, yenye indlela elungileyo eya kwi-FR4.

Ubhedu: Ubhedu lukhetho oluphambili ekwenziweni kweebhodi zeesekethe ezingatshatanga kunye nezikwisilayidi. Kungenxa yokuba ibonelela ngamanqanaba amandla aphezulu, ukuqhuba okuphezulu kobushushu kunye nombane kunye nokusetyenzwa kwakhona kweekhemikhali eziphantsi.

I-Tg ephezulu: I-Tg ephezulu ibonisa ubushushu obuphezulu beglasi. Lo mbandela we-PCB ulungele iibhodi kwizicelo ezifunayo. Izinto ze-Tg zinobushushu obuphezulu kunye nokuqina kwexesha elide.

URogers: Ngokuqhelekileyo ubizwa ngokuba yi-RF, lo mbandela uyaziwa ngokuhambelana kwawo ne-FR4 laminates. Ngenxa yokuqhuba kwayo okuphezulu kunye nokulawulwa okungafunekiyo, iibhodi zesekethe ezingakhokelwa zinokulungiswa ngokulula.

I-Aluminium: Le mpahla ye-PCB enokuthamba kunye nokuthintela ukuthintela iibhodi zobhedu kubushushu. Yakhethwa ngokukodwa ngenxa yokukwazi ukukhupha ubushushu ngokukhawuleza.

I-aluminium engenaHalogen: Esi sinyithi silungele ukusetyenziswa kwendalo. I-aluminium engenaHalogen iphucule ukungaguquguquki kwe-dielectric rhoqo kunye nokungafani kobumanzi.

Kule minyaka, i-PCBS ifumene ukuthandwa kakhulu kwaye yafumana uluhlu olubanzi lwezicelo kumashishini afuna iisekethe ezintsonkothileyo. Ke ngoko, ukukhetha izinto ezifanelekileyo ze-PCB kubaluleke kakhulu, kuba ayichaphazeli ukusebenza kunye neempawu kuphela, kodwa kunye neendleko zebhodi. Khetha izinto ezisekwe kwiimfuno zesicelo, iimeko zokusingqongileyo, kunye nezinye izithintelo ezijamelene ne-PCB.