Ibhodi yesekethe eprintiweyo (i-PCB) yecandelo le-elektroniki elisisiseko lisetyenziswe ngokubanzi kwiimveliso ezahlukeneyo ze-elektroniki kunye nezinxulumene noko. I-PCB ngamanye amaxesha ibizwa ngokuba yi-PWB (ibhodi eprintiweyo). Yayidla ngakumbi eHong Kong neJapan ngaphambili, kodwa ngoku iphantsi (enyanisweni, i-PCB kunye ne-PWB). Kumazwe asentshona kunye nemimandla, ibizwa ngokuba yi-PCB. Empuma, inamagama ahlukeneyo ngenxa yamazwe ahlukeneyo kunye nemimandla. Umzekelo, oko kubizwa ngokuba yiBhodi yeSekikiweyo eprintiweyo eSustland China (ngaphambili ibizwa ngokuba yiBhodi yesekethe), kwaye ibizwa ngokuba yi-PCB eTaiwan. Iibhodi zesekethe zibizwa ngokuba ngamanqanaba e-elektroniki (isekethe) eJapan kunye neminye eMzantsi Korea.

I-PCB yinkxaso yezinto ze-elektroniki kunye nethwala unxibelelwano lombane lwezinto ze-elektroniki, ubukhulu becala ukuxhasa nokuqhagamshelwa. Ngaphandle, umaleko wangaphandle weBhodi yeSiphaluka unemifanekiso emithathu: igolide, isilivere, kwaye ibomvu ngokukhanya. Ihlelwe ngexabiso: igolide yeyona nto ibiza kakhulu, isilivere ngowesibini, kwaye ibomvu ukukhanya yeyona tyhefu. Nangona kunjalo, i-wiriring ngaphakathi kwiBhodi yeSekethe ubukhulu becala ubhedu olucokisekileyo, olungenanto yobhedu.

Kuthiwa kusekho izinyithi ezixabisekileyo kwi-PCB. Kuxelwe ukuba, ngokomndilili, ifowuni nganye iqulethe i-0.05G yegolide, i-0.26G yesilivere, kunye ne-12.6G Copper. Umxholo wegolide welaptop ngamaxesha ali-10 efowunini!

Njengenkxaso yamacandelo e-elektroniki, i-PCBS ifuna izinto ezisemthethweni kumphezulu, kwaye inxenye yomaleko wobhedu kufuneka ivezelwe ukuthengisa. Ezi ngqijelo zobhedu eziveze zibizwa ngokuba ziipads. Iipads zihlala zingxamisekileyo okanye zijikeleze indawo encinci. Ke ngoko, emva kokuba imaski yeThuqu ipeyintiwe, ekuphela kobhedu kwiipads livezwe ngumoya.

Ubhedu olusetyenzisiweyo kwi-PCB ingaba i-oxidid ngokulula. Ukuba ubhedu kwi-pad yi-oxidod, ayizukuba nzima ukubarhwebi ngumthengisi, kodwa nokunyangwa kuya kukonyuka kakhulu, okuya kuchaphazela kakhulu ukusebenza kwemveliso yokugqibela. Ke ngoko, i-pad ifakwe ngegolide ye-Inert, okanye umphezulu ogqunywe ngumaleko wesilivere ngenkqubo yekhemikhali, okanye ifilimu ekhethekileyo yekhemikhali isetyenziselwa ukugubungela umaleko wokunxibelelana nomoya. Thintela i-oxidation kwaye ukhusele i-pad, ukuze iqinisekise isivuno kwinkqubo yokuthengisa elandelayo.

I-1. I-PCB Copper Clad
I-Copper Clad i-lamote i-lamote yindawo eneplate eyenziwe yindwangu ye-fiber ye-fiber okanye enye yezixhobo zokunyanzelisa i-resin kwelinye icala okanye amacala omabini nge-folper foil kunye nokucinezelwa kwe-foil.
Thatha i-fiber ye-fiber ye-fiber ye-fiber ye-fiber clad yemilenze njengomzekelo. Izinto zayo ezibukhali ze-callper ye-fiil, ilaphu ye-fiber ye-fiber, kwaye i-epoxy ren, ene-akhawunti emalunga ne-32%, i-29% ne-26% yeendleko zemveliso, ngokulandelelana.

Umzi-mveliso webhodi yesekethe

I-Copper Clad Clad I-Lamote ye-laminate yindawo yebhodi yesekethe eprintiweyo, kwaye iibhodi zesekethe eziprintwayo ngamacandelo aphambili aphambili kwiimveliso ze-elektroniki ukufezekisa i-elektroniki iimveliso zeseto. Ngokuphuculwa okuqhubekayo kwetekhnoloji, ezinye iindlela ze-elektroniki ze-elektroniki zinokusetyenziswa kwiminyaka yakutshanje. Ngokuthe ngqo kwi-elektroniki eprintwelweyo. Abaqhubi abasetyenziswa kwiibhodi zesekethe eziprintiweyo zenziwa ngamanyala obufana nobhedu, oko kukuthi, indlwana yobhedu kwingqondo emxinwa.

I-2. Ibhodi yesekethe yePCB

Ukuba igolide kunye nobhedu banxibelelana ngokuthe ngqo, kuya kubakho indlela yokufuduka e-electroni kunye nokuma komhlaba (ke ngoko siyibiza ngokuba yigolide, ngoko ke kufuneka sibizwe ngegolide, ngoko ke kufuneka sibizwe ngokuba yigolide ".
Umahluko phakathi kwegolide enzima yegolide kunye negolide ethambileyo kukwenziwa kwefomati yokugqibela yegolide efakwe kuyo. Xa igolide, unokukhetha ukukhetha igolide ecocekileyo okanye i-alloy. Kuba ubunzima begolide ecocekileyo kukuthambile, oko kukuthi "igolide ethambileyo". Kungenxa yokuba "igolide" inokwenza i-Alloy elungileyo nge "Aluminium", i-cob iya kufuna ukuba ubukhulu begolide ecocekileyo xa usenza iingcingo ze-aluminium. Ukongeza, ukuba ukhetha ukukhetha i-elektrofti ye-elektroniki okanye igolide-yegolide, kuba i-alloy iya kuba nzima kunegolide ecocekileyo, ikwabizwa ngokuba "yigolide enzima".

Umzi-mveliso webhodi yesekethe

Umaleko wegolide osetyenziswe ngokubanzi kwi-pads yecandelo, iminwe yegolide, kunye neShingCracl Shrapnel yeBhodi yeSiphaluka. Iibhodi zesekethe ezona zisetyenziswa kakhulu zefowuni uninzi lweebhodi zeefowuni zegolide, iibhodi zegolide, iibhodi zekhompyuter, iibhodi zesekethe ezincinci kunye nedijithali zedijithali zihlala zegolide.

Igolide yigolide yegolide. Nokuba kuphela ungqameko olucekeceke kakhulu lipakiwe, sele ephendula i-10% yeendleko zeBhodi yeBhodi yeBhodi. Ukusetyenziswa kwegolide njengomaleko wendawo yendlela yenye yokuqhubela phambili i-welding kunye nenye ekuthinteleni ukususwa. Nditsho nomnwe wegolide ye-thromer yememori esele isetyenziselwe iminyaka eliqela isaphulela njengangaphambili. Ukuba usebenzisa ubhedu, i-aluminium, okanye isinyithi, kuya kukhawulezisa ukuqhuma kwemfumba yamatyala. Ukongeza, iindleko zeplate efakwe igolide ziphezulu, kwaye amandla omzimba ahluphekile. Kuba iNkqubo yePokel ye-Eckel engenayo isetyenziswa, ingxaki yeediski ezimnyama zinokwenzeka. Umaleko weNckel uya kunyanzeleka ekuhambeni kwexesha, kwaye ukuthembeka kwexesha elide kukwayingxaki.

I-3. Ibhodi yesekethe yePCB yeSilivere
Isilivere yokuntywila iphantsi kunegolide. Ukuba i-PCB ineemfuno zomsebenzi kunye neemfuno zokunciphisa iindleko, isilivere yokuntywiliselwa kukhetho olufanelekileyo; Ukudityaniswa kunye nokuntywila kokuntywila kunye nokunxibelelana, emva koko kuya kukhethwa inkqubo yesilivere.

Isilivere yokuntywila ineemveliso ezininzi kwiimveliso zonxibelelwano, iimoto, kunye neekhompyuter zekhompyuter, kwaye nazo zinezicelo zokuyilwa kwesibonakaliso esiphezulu. Kuba isilivere yokuntywila ineepropathi zombane ezilungileyo ukuba ezinye iindlela zonyango ezingakwazi ukudibanisa, inokusetyenziswa kwiimpawu eziphezulu-free. I-EMS icebisa ukuba kusetyenziswe inkqubo yesilivere yokuntywila kuba kulula ukudibanisa kwaye kuhlolwe okungcono. Nangona kunjalo, ngenxa yesiphene esifana ne-Gaints Gaints kunye ne-voint vaids edibeneyo, ukukhula kweSilivere yokuntywiliselwa kucotha (kodwa kunganciki).

yandisa
IBhodi yesekethe eprintiweyo isetyenziswa njengomthwali ophetheyo wezinto ezidibeneyo ze-elektroniki, kwaye umgangatho weBhodi yeSiphaluka uya kuyichaphazela ngokuthe ngqo ukusebenza kwezixhobo ze-elektroniki. Phakathi kwazo, umgangatho wokuphuphuma kweebhodi zesekethe ushicileleke ngokukhethekileyo. I-elektroplaItha inokuphucula ukhuseleko, intlanganiso, ukurhweba, ukungxama kwaye inxibe ukunganyangeki kwebhodi yesekethe. Kwinkqubo yokuphuhlisa iibhodi zesekethe eziprintiweyo, i-elektroplat linyathelo elibalulekileyo. Umgangatho wombane unxulumene nempumelelo okanye ukusilela kwayo yonke inkqubo kunye nokusebenza kwebhodi yesekethe.

Iinkqubo eziphambili ze-electroplating ze-PCB zifaka i-Popper Plated, i-tin ibeka i-tickel, i-nickel ibeka, i-proting yegolide njalo njalo. Ukhetho lobhedu yindawo esisiseko yokubeka kombane kwiibhodi zesekethe; I-TIn Electroplayting yimeko eyimfuneko yokuveliswa kwemijikelezo ephambili yokuchasana nokuchasana ne-anti-corrosion yokulungisa kwepateni; I-Nickel Elktroplaitha kukwenza i-elektropplate i-nickel farriermer kwibhodi yesekethe ukuthintela ubhedu kunye negolide i-shea slis; Ukufakwa kweYillroplay igolide kuthintela ukudluliselwa komphezulu we-nickel ukufezekisa intsebenzo yokurhweba nokunganyangeki kweBhodi yeSiphaluka.