Iibhodi zeesekethe eziprintiweyo ziyimfuneko yezixhobo ezininzi zombane.IiPCB zanamhlanje zinemigangatho emininzi kuzo: i-substrate, umkhondo, imaski ye-solder, kunye nescreen sesilika.Esinye sezixhobo ezibaluleke kakhulu kwi-PCB lubhedu, kwaye kukho izizathu ezininzi zokuba kutheni kusetyenziswe ubhedu endaweni yezinye iialloys ezifana ne-aluminiyam okanye i-tin.
Zenziwe Ngantoni IiPCB?
Ichazwe yinkampani yendibano ye-PCB, ii-PCB zenziwe ngento ebizwa ngokuba yi-substrate, eyenziwe nge-fiberglass eyomelezwe nge-epoxy resin.Ngaphezulu kwe-substrate ngumaleko we-foil yobhedu enokuthi iboshwe kumacala omabini okanye enye kuphela.Emva kokuba i-substrate yenziwe, abavelisi babeka amacandelo kuyo.Basebenzisa imaski ye-solder kunye nesikrini sesilika kunye ne-resistors, i-capacitors, i-transistors, i-diode, iitshiphusi zesekethe, kunye nezinye izinto ezikhethekileyo.
Kutheni iFoil yeCopper isetyenziswa kwiiPCBs?
Abavelisi be-PCB basebenzisa ubhedu kuba inombane ophezulu kunye ne-thermal conductivity.Njengoko umbane uhamba kunye nePCB, ubhedu lugcina ubushushu bungonakalisi kwaye bucinezele yonke iPCB.Ngezinye ii-alloys - njenge-aluminiyam okanye i-tin - i-PCB inokufudumala ngokungafaniyo kwaye ingasebenzi kakuhle.
I-Copper yi-alloy ekhethiweyo kuba inokuthumela izibonakaliso zombane kwibhodi ngaphandle kweengxaki zokulahlekelwa okanye ukunciphisa umbane.Ukusebenza kakuhle kokutshintshwa kobushushu kuvumela abavelisi ukuba bafake i-classic heat sinks phezu komhlaba.Ubhedu ngokwalo lusebenza kakuhle, njengoko i-ounce yobhedu inokugubungela unyawo lwesikwere se-PCB substrate kwi-1.4 lamawaka e-intshi okanye i-35 micrometers ubukhulu.
I-Copper iqhuba kakhulu kuba ine-electron yamahhala ekwazi ukuhamba ukusuka kwi-athomu enye ukuya kwenye ngaphandle kokucotha.Kuba ihlala isebenza kakuhle kwelo nqanaba lincinci kakhulu njengoko lisenza kumanqanaba atyebileyo, ubhedu oluncinci luhamba indlela ende.
Ubhedu kunye nezinye iintsimbi ezixabisekileyo ezisetyenziswa kwiiPCB
Uninzi lwabantu luyaziqonda ii-PCBs njengeziluhlaza.Kodwa, bahlala benemibala emithathu kumaleko angaphandle: igolide, isilivere, kunye nobomvu.Kananjalo banobhedu olusulungekileyo ngaphakathi nangaphandle kwePCB.Ezinye iintsimbi kwibhodi yesekethe zibonakala ngemibala eyahlukeneyo.Umaleko wegolide ngowona ubiza kakhulu, umaleko wesilivere unexabiso lesibini-phezulu, kwaye obomvu ngowona maleko angabizi kakhulu.
Ukusebenzisa iGolide yokuntywiliselwa kwiiPCBs
ubhedu kwibhodi yesekethe eprintiweyo
Uluhlu olufakwe ngegolide lusetyenziselwa i-shrapnel yokudibanisa kunye neepads zecandelo.Umaleko wegolide wokuntywiliselwa ukhona ukunqanda ukufuduswa kweeathom zomphezulu.Umaleko awuyogolide nje ngombala, kodwa wenziwa ngegolide yokwenyani.Igolide ibhityile ngendlela emangalisayo kodwa yanele ukwandisa ubomi bamacandelo afuna ukuthengiswa.Igolide ikhusela iindawo ezithengiswayo ukuba zingaboli ngokuhamba kwexesha.
Ukusebenzisa iSilver yokuntywiliselwa kwiiPCBs
Isilivere yenye intsimbi esetyenziswa kwimveliso yePCB.Ixabiso eliphantsi kakhulu kunokuntywiliselwa kwegolide.Ukuntywiliselwa kwesilivere kunokusetyenziswa endaweni yokuntywiliselwa kwegolide kuba kukwanceda ngonxibelelwano, kwaye kunciphisa iindleko ezipheleleyo zebhodi.Ukuntywiliselwa kwesilivere kudla ngokusetyenziswa kwiiPCB ezisetyenziswa kwiimoto nakwimibhobho yekhompyuter.
I-Copper Clad Laminate kwi-PCBs
Endaweni yokusebenzisa ukuntywiliselwa, ubhedu lusetyenziswa ngendlela egqunyiweyo.Lo ngumaleko obomvu wePCB, kwaye sesona sisinyithi sisetyenziswa kakhulu.I-PCB yenziwe ngobhedu njengesiseko sesinyithi, kwaye kuyimfuneko ukufumana iisekethe ukuba zidibanise kwaye zithethe ngokufanelekileyo.
Isetyenziswa njani iCopper Foil kwiiPCBs?
Ubhedu lunosetyenziso oluninzi kwiiPCBs, ukusuka kwilaminate yobhedu ukuya kwimizila.Ubhedu lubalulekile ukuze iiPCB zisebenze ngokufanelekileyo.
Yintoni PCB Trace?
Umkhondo we-PCB yinto evakala ngathi, indlela yesekethe ukuba ilandele.Umkhondo ubandakanya inethiwekhi yobhedu, i-wiring, kunye ne-insulation, kunye ne-fuses kunye namacandelo asetyenziswa ebhodini.
Eyona ndlela ilula yokuqonda umkhondo kukucinga ngayo njengendlela okanye ibhulorho.Ukulungiselela izithuthi, umkhondo kufuneka ube banzi ngokwaneleyo ukuze ubambe ubuncinane ezimbini kuzo.Ifuna ukuba ngqindilili ngokwaneleyo ukuba ingawi phantsi koxinzelelo.Kwakhona kufuneka zenziwe ngezinto eziya kumelana nobunzima bezithuthi ezihamba kuyo.Kodwa, imikhondo yenza konke oku ukuya kwinqanaba elincinci kakhulu lokuhambisa umbane kuneemoto.
Iinxalenye zePCB Trace
Kukho izinto ezininzi ezenza umkhondo wePCB.Banemisebenzi eyahlukeneyo ekufuneka yenziwe ukuze ibhodi yenze umsebenzi wayo ngokufanelekileyo.Kufuneka kusetyenziswe ubhedu ukunceda umkhondo ukwenza imisebenzi yawo, kwaye ngaphandle kwePCB, asinakuba nazo naziphi na izixhobo zombane.Yiba nomfanekiso welizwe elingenazo ii-smartphones, iilaptops, abenzi bekofu, kunye neemoto.Yiloo nto ebesiya kuba nayo ukuba iiPCB azisebenzisi ubhedu.
PCB Track Ukutyeba
Uyilo lwePCB luxhomekeke kubukhulu bebhodi.Ubunzima buya kuchaphazela ibhalansi kwaye buya kugcina amacandelo adibeneyo.
PCB Trace Ububanzi
Ububanzi bomkhondo bubalulekile.Oku akuchaphazeli ibhalansi okanye i-attachment yamacandelo, kodwa igcina ukuhanjiswa kwangoku ngaphandle kokushisa okanye ukulimaza ibhodi.
PCB Trace Ngoku
I-PCB trace current iyimfuneko kuba yile nto isetyenziswa yibhodi ukuhambisa umbane ngamacandelo kunye neengcingo.Ubhedu lunceda oku, kwaye i-electron yamahhala kwi-athomu nganye ifumana okwangoku ihamba kakuhle phezu kwebhodi.
Kutheni iCopper Foil kwiipcbs
Inkqubo yokwenza iiPCBs
Inkqubo yokwenza iPCB iyafana.Ezinye iinkampani ziyenza ngokukhawuleza kunezinye, kodwa zonke zisebenzisa inkqubo efanayo kunye nezixhobo.La ngamanyathelo:
Yenza isiseko kwi-fiberglass kunye ne-resins
Beka iileyile zobhedu kwisiseko
Chonga kwaye usete iipateni zobhedu
Hlamba ibhodi kwindawo yokuhlambela
Yongeza imaski ye-solder ukukhusela i-PCB
Ncamathelisa i-silkscreen kwi-PCB
Beka kwaye uthengise i-resistors, iisekethe ezidibeneyo, ii-capacitors, kunye nezinye izinto
Vavanya i-PCB
IiPCB kufuneka zibe namacandelo akhethekileyo ukuze zisebenze kakuhle.Enye yezona zinto zibalulekileyo zePCB lubhedu.Le alloy iyadingeka ukuqhuba umbane kwizixhobo apho iiPCB ziya kufakwa khona.Ngaphandle kobhedu, izixhobo aziyi kusebenza kuba umbane awuyi kuba ne-alloy yokuhamba.
Ixesha lokuposa: Apr-25-2022