Amabhodi wesifunda aphrintiwe ayizingxenye ezidingekayo zamadivaysi amaningi kagesi.Ama-PCB anamuhla anezendlalelo ezimbalwa kuwo: i-substrate, imikhondo, imaski ye-solder, nesikrini sikasilika.Enye yezinto ezibaluleke kakhulu ku-PCB ithusi, futhi kunezizathu ezimbalwa zokuthi kungani ithusi lisetshenziswa esikhundleni seminye ingxubevange njenge-aluminium noma ithini.
Akhiwe Ngani Ama-PCB?
Ishiwo inkampani yokuhlanganisa i-PCB, ama-PCB enziwe ngento ebizwa ngokuthi i-substrate, eyenziwe nge-fiberglass eqiniswa nge-epoxy resin.Ngaphezulu kwe-substrate kukhona ungqimba lwe-foil yethusi olungahlanganiswa nhlangothi zombili noma eyodwa kuphela.Uma i-substrate yenziwe, abakhiqizi babeka izingxenye kuyo.Basebenzisa imaski ye-solder nesikrini sikasilika kanye nama-resistor, ama-capacitor, ama-transistors, ama-diode, ama-circuit chips, nezinye izakhi ezikhethekile kakhulu.
Kungani I-Copper Foil Isetshenziswa kuma-PCB?
Abakhiqizi be-PCB basebenzisa ithusi ngoba linogesi oshisa kakhulu nowokushisa.Njengoba amandla kagesi ahamba kanye ne-PCB, ithusi ligcina ukushisa ekulimazeni nasekucindezeleni yonke i-PCB.Ngamanye ama-alloys - njenge-aluminium noma ithini - i-PCB ingashisa ngokulinganayo futhi ingasebenzi kahle.
I-Copper iyingxubevange ekhethwayo ngoba ingathumela amasignali kagesi ebhodini ngaphandle kwezinkinga zokulahlekelwa noma ukunciphisa ugesi.Ukusebenza kahle kokudluliswa kokushisa kuvumela abakhiqizi ukuthi bafake amasinki okushisa akudala phezulu.I-Copper ngokwayo iyasebenza, njengoba i-ounce yethusi ingamboza unyawo lwesikwele lwe-PCB substrate ku-1.4 thousandths ye-intshi noma ama-micrometer angu-35 ubukhulu.
I-Copper ine-conductive kakhulu ngoba ine-electron yamahhala ekwazi ukuhamba isuka kwenye i-athomu iye kwenye ngaphandle kokunensa.Ngenxa yokuthi ihlala isebenza kahle kulelo zinga elincanyana ngendlela emangalisayo njengoba yenza emazingeni aminyene, ithusi elincane lihamba ibanga elide.
Ithusi nezinye Izinsimbi Eziyigugu Ezisetshenziswa kuma-PCB
Abantu abaningi babona ama-PCB njengaluhlaza.Kodwa, ngokuvamile ziba nemibala emithathu oqwembeni olungaphandle: igolide, isiliva, nebomvu.Futhi banethusi elimsulwa ngaphakathi nangaphandle kwe-PCB.Ezinye izinsimbi ebhodini lesekethe zibonakala ngemibala ehlukahlukene.Ungqimba lwegolide lubiza kakhulu, ungqimba lwesiliva lunezindleko zesibili eziphakeme, futhi olubomvu luyingqimba engabizi kakhulu.
Ukusebenzisa i-Immersion Gold kuma-PCB
ithusi ebhodini lesifunda eliphrintiwe
Isendlalelo esifakwe ngegolide sisetshenziselwa ama-shrapnel esixhumi namaphedi engxenye.Ungqimba lwegolide lokucwiliswa lukhona ukuze kuvinjwe ukugudluzwa kwama-athomu angaphezulu.Ungqimba alulona nje igolide ngombala, kodwa lwenziwe ngegolide langempela.Igolide lincane ngendlela emangalisayo kodwa lanele ukwandisa isikhathi sokuphila sezingxenye ezidinga ukudayiswa.Igolide livimbela izingxenye ze-solder ukuthi zingagqwali ngokuhamba kwesikhathi.
Ukusebenzisa i-Immersion Silver kuma-PCB
Isiliva ngenye insimbi esetshenziswa ekwenziweni kwe-PCB.Ibiza kancane kakhulu kunokucwiliswa kwegolide.Ukucwiliswa kwesiliva kungasetshenziswa esikhundleni sokucwiliswa kwegolide ngoba kusiza nasekuxhumekeni, futhi kunciphisa izindleko zebhodi.Ukucwiliswa kwesiliva kuvame ukusetshenziswa kuma-PCB asetshenziswa ezimotweni nakuma-peripheral ekhompyutha.
I-Copper Clad Laminate kuma-PCBs
Esikhundleni sokusebenzisa ukucwiliswa, ithusi lisetshenziswa ngendlela egqoke.Lolu ungqimba olubomvu lwe-PCB, futhi luyinsimbi esetshenziswa kakhulu.I-PCB yenziwe ngethusi njengensimbi eyisisekelo, futhi kuyadingeka ukuthola amasekhethi ukuze axhumane futhi akhulume omunye nomunye ngempumelelo.
Isetshenziswa kanjani i-Copper Foil kuma-PCB?
Ithusi linokusetshenziswa okuningana kuma-PCB, kusukela ku-laminate egqoke ithusi kuya emithonjeni.I-Copper ibalulekile ukuze ama-PCB asebenze ngendlela efanele.
Iyini i-PCB Trace?
Ukulandela umkhondo we-PCB yilokho okuzwakala sengathi, indlela okufanele isekethe ilandelwe.Umkhondo uhlanganisa inethiwekhi yethusi, izintambo, kanye ne-insulation, kanye nama-fuse kanye nezingxenye ezisetshenziswa ebhodini.
Indlela elula yokuqonda umkhondo ukuwucabanga njengomgwaqo noma ibhuloho.Ukuze kufakwe izimoto, umkhondo kufanele ube banzi ngokwanele ukubamba okungenani ezimbili zazo.Idinga ukuqina ngokwanele ukuze ingawi ngaphansi kwengcindezi.Kudingeka futhi enziwe ngezinto ezizomelana nesisindo sezimoto ezihamba ngayo.Kodwa, imikhondo yenza konke lokhu ngezinga elincane kakhulu ukuhambisa ugesi kunezimoto.
Izingxenye ze-PCB Trace
Kukhona izingxenye ezimbalwa ezakha umkhondo we-PCB.Banemisebenzi eyahlukene okumele yenziwe ukuze ibhodi lenze umsebenzi walo ngokwenele.I-Copper kufanele isetshenziselwe ukusiza imikhondo ukwenza imisebenzi yayo, futhi ngaphandle kwe-PCB, besingeke sibe namathuluzi kagesi.Cabanga ngezwe elingenawo ama-smartphones, amakhompyutha aphathekayo, abenzi bekhofi, nezimoto.Yilokho ebesiyoba nakho ukube ama-PCB awazange asebenzise ithusi.
PCB Trace Ubukhulu
Idizayini ye-PCB incike ebukhulu bebhodi.Ubukhulu buzothinta ibhalansi futhi buzogcina izingxenye zixhunyiwe.
PCB Trace Width
Ububanzi bomkhondo nawo bubalulekile.Lokhu akuthinti ibhalansi noma okunamathiselwe kwezingxenye, kodwa kugcina ukudluliselwa kwamanje ngaphandle kokushisa ngokweqile noma ukulimaza ibhodi.
I-PCB Trace Yamanje
I-PCB trace current iyadingeka ngoba yilokhu ibhodi elikusebenzisa ukuhambisa ugesi ngokusebenzisa izingxenye nezintambo.I-Copper isiza lokhu kwenzeke, futhi i-electron yamahhala ku-athomu ngayinye ithola okwamanje ukuhamba kahle phezu kwebhodi.
Kungani i-Copper Foil kuma-pcbs
Inqubo yokwenza ama-PCB
Inqubo yokwenza i-PCB iyafana.Ezinye izinkampani zikwenza ngokushesha kunezinye, kodwa zonke zisebenzisa inqubo efanayo nezinto zokwakha.Lezi yizinyathelo:
Yenza isisekelo nge-fiberglass nama-resins
Beka izendlalelo zethusi phezu kwesisekelo
Khomba futhi usethe amaphethini ethusi
Geza ibhodi endaweni yokugeza
Engeza imaski ye-solder ukuze uvikele i-PCB
Namathisela isikrini sikasilika ku-PCB
Beka futhi uthengise ama-resistors, ama-circuits ahlanganisiwe, ama-capacitor, nezinye izakhi
Hlola i-PCB
Ama-PCB adinga ukuba nezingxenye ezikhethekile kakhulu ukuze asebenze kahle.Enye yezinto ezibaluleke kakhulu ze-PCB ithusi.Le ngxubevange iyadingeka ukuze kuqhutshwe ugesi emishinini lapho kuzofakwa khona ama-PCB.Ngaphandle kwethusi, imishini ngeke isebenze ngoba ugesi ngeke ube ne-alloy yokuhamba.
Isikhathi sokuthumela: Apr-25-2022