Mabhodhi edunhu akadhindwa akakosha zvikamu zvemidziyo yakawanda yemagetsi.MaPCB anhasi ane akati wandei akaturikidzana kwavari: iyo substrate, traces, solder mask, uye silkscreen.Chimwe chezvinhu zvinonyanya kukosha paPCB imhangura, uye pane zvikonzero zvakati nei mhangura ichishandiswa pachinzvimbo chemamwe alloys akaita sealuminium kana tini.
Chii chinonzi PCBs Yakagadzirwa?
Zvichitaurwa nekambani yePCB musangano, maPCB anogadzirwa nechinhu chinonzi substrate, icho chinogadzirwa nefiberglass inosimbiswa ne epoxy resin.Pamusoro pe substrate pane chigadziko chemhangura foil inogona kusungirirwa kumativi ose kana imwe chete.Kana iyo substrate yagadzirwa, vagadziri vanoisa zvikamu pairi.Ivo vanoshandisa solder mask uye silkscreen pamwe neresistors, capacitors, transistors, diode, redunhu machipisi, uye zvimwe zvine hunyanzvi zvikamu.
Sei Copper Foil Inoshandiswa muPCBs?
Vagadziri vePCB vanoshandisa mhangura nekuti ine yepamusoro yemagetsi uye yekupisa conductivity.Sezvo magetsi emagetsi achifamba pamwe nePCB, mhangura inochengetedza kupisa kubva pakukuvadza uye kusimbisa iyo yose yePCB.Neimwe alloys - sealuminium kana tin - iyo PCB inogona kupisa zvisina kuenzana uye kusashanda nemazvo.
Mhangura ndiyo alloy inosarudzika nekuti inogona kutumira masaini emagetsi mukati mebhodhi pasina matambudziko ekurasikirwa kana kudzikamisa magetsi.Kubudirira kwekupisa kupisa kunobvumira vagadziri kuisa classic heat sinks pamusoro.Mhangura pachayo inoshanda, seyounzi yemhangura inogona kuvhara sikweya tsoka yePCB substrate pa1.4 zviuru zve inch kana 35 micrometers gobvu.
Mhangura inofambisa zvakanyanya nekuti ine erekitironi yemahara inokwanisa kufamba kubva kune imwe atomu kuenda kune imwe isinganonoke.Nekuti inoramba ichingoshanda padanho rakatetepa zvakanyanya sezvainoita pamazinga akakora, mhangura shoma inoenda kure.
Mhangura uye Mamwe Masimbi Anokosha Anoshandiswa muPCBs
Vanhu vazhinji vanoona PCB seyakasvibira.Asi, ivo vanowanzova nemavara matatu pachikamu chekunze: goridhe, sirivha, uye tsvuku.Ivo zvakare vane mhangura yakachena mukati uye kunze kwePCB.Mamwe masimbi ari pabhodhi redunhu anoratidza mavara akasiyana-siyana.Iyo yegoridhe layer ndiyo inodhura zvakanyanya, sirivheri ine yechipiri-yepamusoro mutengo, uye tsvuku ndiyo isingadhure.
Kushandisa Immersion Gold muPCBs
mhangura pabhodhi redunhu rakadhindwa
Iyo yegoridhe-yakapfatwa layer inoshandiswa kune connector shrapnel uye component pads.Iyo yekunyudza yegoridhe layer iripo kudzivirira kutamiswa kwemaatomu epamusoro.Mutsara hausi goridhe chete muruvara, asi wakagadzirwa negoridhe chairo.Iyo goridhe yakatetepa zvisingaite asi inokwana kuwedzera hupenyu hwezvinhu zvinoda kutengeswa.Ndarama inodzivirira zvikamu zvinotengeswa kubva pakuora nekufamba kwenguva.
Kushandisa Immersion Silver muPCBs
Sirivha imwe simbi inoshandiswa mukugadzira PCB.Inodhura zvakanyanya kudarika kunyudzwa kwegoridhe.Kunyudzwa kwesirivha kunogona kushandiswa panzvimbo yekunyudzwa kwegoridhe nekuti inobatsirawo nekubatanidza, uye inoderedza mutengo webhodhi.Kunyudzwa kweSilver kunowanzo shandiswa mumaPCB ayo anoshandiswa mumotokari nemakomputa peripherals.
Copper Clad Laminate muPCBs
Panzvimbo pekushandisa kunyudza, mhangura inoshandiswa muchimiro chakapfeka.Iyi ndiyo tsvuku tsvuku yePCB, uye ndiyo inonyanya kushandiswa simbi.Iyo PCB inogadzirwa kubva kumhangura sesimbi yepasi, uye inofanirwa kuwana maseketi kuti abatanidze uye ataure kune mumwe nemumwe zvinobudirira.
Ko Copper Foil Inoshandiswa Sei muPCBs?
Mhangura ine akati wandei mashandisirwo muPCB, kubva kune yemhangura-yakapfeka laminate kusvika kune inoteedzera.Mhangura yakakosha kuti maPCB ashande nemazvo.
Chii chinonzi PCB Trace?
A PCB trace ndiyo inonzwika senge, nzira yekuti dunhu ritevedze.Kutevera kunosanganisira network yemhangura, wiring, uye insulation, pamwe chete nemafuse uye zvikamu zvinoshandiswa pabhodhi.
Nzira iri nyore yekunzwisisa tsananguro ndeyekufunga nezvayo semugwagwa kana zambuko.Kuti mota dzigare, mucherechedzo unofanirwa kuve wakapamhama zvakakwana kubata dzinenge mbiri dzadzo.Inoda kunge yakakora zvakakwana kuti isadonha pasi pekumanikidzwa.Zvinodawo kugadzirwa nezvinhu zvinoshingirira huremu hwemotokari dzinofamba pairi.Asi, maronda anoita zvese izvi kusvika padanho diki kufambisa magetsi kwete mota.
Zvikamu zvePCB Trace
Pane akati wandei anoumba PCB trace.Vane mabasa akasiyana siyana anofanira kuitwa kuti bhodhi riite basa raro nemazvo.Mhangura inofanirwa kushandiswa kubatsira matrace kuita mabasa avo, uye pasina PCB, tingadai tisina midziyo yemagetsi.Fungidzira nyika isina mafoni, malaptop, vagadziri vekofi, uye mota.Ndizvo zvataizova nazvo dai maPCB asina kushandisa mhangura.
PCB Trace Ukobvu
Iyo PCB dhizaini inoenderana nekukora kwebhodhi.Ukobvu huchakanganisa kuenzana uye huchaita kuti zvikamu zvakabatana.
PCB Trace Width
Upamhi hwekutsvaga hunokosha zvakare.Izvi hazvikanganise chiyero kana kubatanidzwa kwezvikamu, asi zvinochengeta ikozvino kutamisa pasina kupisa kana kukuvadza bhodhi.
PCB Trace Current
Iyo PCB yekutsvaga ikozvino inodiwa nekuti izvi ndizvo zvinoshandiswa nebhodhi kufambisa magetsi kuburikidza nezvikamu uye waya.Mhangura inobatsira izvi kuti zviitike, uye erekitironi yemahara paatomu imwe neimwe inowana ikozvino kufamba zvakanaka pamusoro pebhodhi.
Sei Copper Foil iri pcbs
Maitiro ekugadzira maPCB
Maitiro ekugadzira PCB akafanana.Mamwe makambani anozviita nekukurumidza kupfuura mamwe, asi ese anoshandisa zvakangofanana maitiro uye zvinhu.Aya ndiwo matanho:
Gadzira hwaro kubva kune fiberglass uye resins
Isa zvidimbu zvemhangura panheyo
Ziva uye uise maitiro emhangura
Shamba bhodhi mubhati
Wedzera iyo solder mask kuchengetedza PCB
Namatidza silkscreen paPCB
Isa uye solder zvinopikisa, maseketi akabatanidzwa, capacitors, uye zvimwe zvinhu
Edza iyo PCB
MaPCB anofanirwa kuve neakanyanya hunyanzvi zvikamu kuti ashande nemazvo.Chimwe chezvinhu zvakakosha zvePCB imhangura.Iyi alloy inodiwa kuitisa magetsi pamidziyo iyo maPCB achaiswa.Pasina mhangura, zvishandiso hazvishande nekuti magetsi haazove nealloy yekufamba.
Nguva yekutumira: Kubvumbi-25-2022