Nei foil yemhangura ichishandiswa muPCB kugadzira?

Akadhindwa matunhu ematunhu anodiwa zvikamu zvemidziyo yemagetsi. Mazuva ano PCBs ane zviyero zvakati kwavari kwavari: iyo substrate, inoteedzera, mutengesi maski, uye silkscreen. Chimwe chezvinhu zvakanyanyisa pane PCB ndarira, uye pane zvikonzero zvakati kuti nei ndarira ichishandiswa panzvimbo pemamwe mahedhiyo kunge aluminium kana tin.

Chii chinonzi PCBS yakagadzirwa?

Yakataurwa nekambani yePCB, PCBS yakagadzirwa nechinhu chinonzi substrate, iyo yakagadzirwa neFiberglass iyo inosimbiswa neepoxy resin. Pamusoro peiyo substrate idanda remhangura foil iyo inogona kusungirirwa pamativi ese kana imwe chete. Kana iyo substrate yakagadzirwa, vagadziri vanoisa zvikamu pairi. Ivo vanoshandisa mutengesi mask uye silkscreen pamwe nevanopandara, capacitors, vaturiki, diodes, dunhu rechirazi, uye zvimwe zvinhu zvinoshamisa.

Nei foil yemhangura ichishandiswa muPCBS?

PCB Vagadziri vanoshandisa mhangura nekuti ine magetsi epamusoro uye anodziya. Sezvo magetsi zvazvino anofambisa pamwe nePCB, mhangura inochengeta kupisa kubva mukukuvadza nekukanganisa iyo PCB yePCB. Nemamwe maAlloys - kunge aluminium kana tin - iyo PCB inogona kupisa zvisina kukodzera uye isingashande nemazvo.

Copper ndiro rairo raunofarira nekuti rinogona kutumira zviratidzo zvemagetsi kuyambuka nebhodi pasina chero matambudziko akarasikirwa kana kudzora magetsi. Kubudirira kwekushisa kwekushisa kunobvumira vagadziri kuti vaise kupisa kwekirasi kunonyura pamusoro pechiso. Mhangura pacharo inoshanda, seyekuita yemhangura inogona kufukidza tsoka yemakiromita yePCB substrate pa1,4 zviuru zveanch kana 35 micrometders gobvu.

Copper anoitisa zvakanyanya nekuti ine magetsi akasununguka anogona kufamba kubva kune imwe tomu kune mumwe pasina kunonoka. Nekuti inoramba ichingobudirira pane iyo yakanyanya kutetepa yakaonda sezvinoita pamakumi matatu ematehwe, ndiro shoma mhangura inoenda kure.

Copper uye mamwe masimbi anokosha anoshandiswa muPCBS
Vanhu vazhinji vanoziva PCBS sekuva girini. Asi, vanowanzove nemavara matatu pane imwe nzvimbo yekunze: goridhe, sirivheri, uye tsvuku. Ivo zvakare vane copper yakachena mukati uye kunze kwePCB. Mamwe metals pane redunhu bhodhi ratidza mumhando dzakasiyana siyana. Iyo yegoridhe inodhura zvakanyanya, iyo sirivheri ine mutengo wechipiri, uye mutsvuku ndiye anodhura diki.

Kushandisa Elmersion Goridhe muPCBS
Copper pane yakadhindwa wedunhu board

Iyo yegoridhe-yakarongedzwa denderedzwa inoshandiswa kune yekubatanidza shrapnel uye makomputa mapad ezvikamu. Iyo yekunyudza goridhe layer iripo kudzivirira kutamiswa kwemaatomu emusoro. Iyo danga haisi goridhe chete muruvara, asi yakagadzirwa nendarama chaiyo. Goridhe iri rakatetepa asi rakaringana kuwedzera hupenyu hwezvinhu izvo zvinoda kutengeswa. Iyo goridhe inodzivirira iyo vatengesi zvikamu kubva pakubata nekufamba kwenguva.

Uchishandisa kunyudzwa sirivha muPCBS
Sirivheri ndechimwe simbi inoshandiswa muPCB kugadzira. Izvo zvinodhura zvakanyanya kupfuura kunyudzwa kwegoridhe. Kunyudzwa kwesirivheri kunogona kushandiswa munzvimbo yegoridhe kunyudzwa nekuti kunobatsirawo nekubatana, uye zvinoderedza mutengo wakazara webhodhi. Silver kunyudzwa kazhinji inoshandiswa muPCBS iyo inoshandiswa mumotokari uye perfeks yemakomputa.

Copper Clad Laminate muPCBS
Panzvimbo pekushandisa kunyudzwa, mhangura inoshandiswa muchimiro chakapfava. Iyi ndiyo denderedzwa rakatsvuka yePCB, uye ndiyo inonyanya kushandiswa simbi. Iyo PCB yakagadzirwa kubva mhangura se simbi yekubvisa, uye inodikanwa kuti utore matunhu ekubatanidza uye kutaura kune mumwe nemumwe zvinobudirira.

Mhirizi ndeyeputi yakashandiswa sei muPCBS?

Copper ane anoshandiswa akati wandei muPCBs, kubva kumhangura-copper-copper leminate kune iyo traces. Copper zvakakosha kuti PCBs yekushanda nenzira kwayo.

Chii chinonzi PCB trace?
Iyo PCB trace ndizvo zvinonzwika senge, nzira yedunhu kutevera. Iyo trace inosanganisira network yemhangura, wiring, uye insolation, pamwe nemafuro uye zvikamu zvinoshandiswa pabhodhi.

Nzira iri nyore yekunzwisisa trace ndeyekufunga nezvayo senzira kana bhiriji. Kuti ugare mota, iyo trace inoda kuve yakafara zvakakwana kuti ibate vaviri vavo. Zvinoda kuve wakakora zvakakwana kuti usakwegurwa pasi pekumanikidzwa. Ivo vanofanirawo kugadzirwa nezvinhu zvinogadzirisa uremu hwemotokari dzinofamba pamusoro payo. Asi, zvinoitika zvinoita zvese izvi kusvika padiki diki kuti ufambe magetsi kwete mota.

Zvikamu zvePCB trace
Pane zvikamu zvinoverengeka zvinoumba PCB tsvaga. Ivo vane mabasa akasiyana siyana vanofanirwa kuitirwa bhodhi kuti iite basa rayo zvakakwana. Copper inofanira kushandiswa kubatsira iyo madhiri anoita mabasa avo, uye pasina PCB, isu hatina chero zvigadzirwa zvemagetsi. Fungidzira nyika isina smartphones, laptops, macreep crefers, uye mota. Ndozvatinazvo kana PCPs asina kushandisa mhangura.

PCB trace gobvu
Iyo PCB dhizaini inoenderana nebvudzi rebhodhi. Iko ukobvu kuchakanganisa chiyero uye kuchengeta zvikamu zvakabatana.

PCB trace upamhi
Upamhi hwetsvina hwakakoshawo. Izvi hazvinei nehuremu kana kubatanidzwa kwezvikamu, asi zvinoita chengetedza kuendesa izvozvi pasina kufarirwa kana kukuvadza bhodhi.

PCB inoteedzera zvazvino
Iyo PCB inoteedzera zvazvino ndeyezvinodiwa nekuti izvi ndizvo zvinoshandiswa nebhodhi kuti ifambire magetsi kuburikidza nezvikamu uye waya. Copper inobatsira izvi kuitika, uye emahara emahara paatomu rimwe nerimwe anowana kufambisa kwazvino pamusoro pebhodhi.

Nei matsotsi ari pamhapu paPCbs

Maitiro ekugadzira PCBS
Maitiro ekugadzira PCB yakafanana. Mamwe makambani anozviita anokurumidza kupfuura vamwe, asi vese vanoshandisa zvakafanana maitiro uye zvigadzirwa. Iyi ndiyo nhanho:

Gadzira hwaro kunze kweFiberglass uye anoona
Isa matare emhangura pane hwaro
Ziva uye isa iyo mhangura mapatani
Geza bhodhi mukugeza
Wedzera iyo mutengesi mask kuchengetedza iyo PCB
Skisiki iyo silkscreen paPCB
Nzvimbo uye mutengesi vairwadziswa, zvakabatanidzwa zvapera, capacitors, nezvimwe zvinhu
Edza PCB

PCBS inoda kuve nezvinhu zvakakosha kwazvo kuti zvishande nemazvo. Chimwe chezvinhu zvakakosha zvePCB ndarira ndarira. Aya maitiro anodikanwa kuti aitire magetsi pamidziyo iyo iyo PCBS ichaiswa. Pasina Copper, midziyo yacho haizoshande nekuti magetsi haazove neakarayirwa kuti afambire mberi.