Iqhaza Elibalulekile Lokugcwaliswa Kwe-Vias Ku-Modern PCB Design

Ukuhlelwa Okuphelele Kwezinto Ezigcwele Ku-PCB Design

Emkhakheni womklamo webhodi lesekethe eliphrintiwe (PCB), ukusetshenziswa kwama-vias agcwalisiwe kuhlanganisa izinhlobonhlobo zezinketho, ngayinye yakhelwe izidingo ezithile nokucatshangelwa. Ake sihlole izinhlobo ezahlukene zama-vias agcwaliswe ngokuningiliziwe:

1. Ama-Vias Agcwalisiwe Avamile: Ama-vias agcwalisiwe avamile amelela isici esiyisisekelo sobuchwepheshe be-via, aqukethe indlela evivinywe isikhathi eside yokufeza ukuxhumana okuqinile ngaphakathi kwama-PCB. Lesi sigaba sihilela ukubhoboza ngokucophelela imigodi emincane nge-substrate ye-PCB, bese igcwaliswa ngethusi ngenqubo yokufakelwa ngogesi. Ithusi elifakwe liqinisa izindonga zangaphakathi ze-via, ngezinto ezengeziwe zisuswa ngokucophelela ukuqinisekisa indawo eyisicaba, efanayo. Njengoba zidumile ngokuthembeka kwazo kanye nokuguquguquka kwazo, ama-vias agcwalisiwe avamile asebenza njengento ebalulekile eningini lezinhlelo zokusebenza ze-PCB, enikeza ukukhuliswa kokukhiqiza okukhulu ngezindleko ezisebenziseka kahle ngokomnotho.

2. Ama-Via Angena Ngemigodi: Ama-via angena ngemigodi abonisa indlela eyisisekelo yokusungula ukuxhumana phakathi kwezingqimba ngaphakathi kwama-PCB, ahlanganisa lonke ubukhulu be-substrate yebhodi. Lawa ma-via abonakala ngembobo edlula kuzo zonke izingqimba ze-PCB, bese egcwala ngethusi ukuze kube lula ukugeleza kwamanje okungenamthungo ezingqimbeni ezahlukahlukene. Okuphawulekayo ukuthi ama-via angena ngemigodi ahamba phambili ezimweni ezidinga ukudluliselwa kwamanje okuphezulu, ngenxa yokwakhiwa kwawo okuqinile okunciphisa ingozi yokunqamuka okubangelwa ukucindezeleka komshini. Lokhu kuqina okungokwemvelo kwenza ama-via angena ngemigodi abe yisinqumo esithandwayo sezinhlelo zokusebenza ezifuna ukuqhubeka kukagesi okuqinile kanye nobuqotho bomshini.

3. Ama-Blind Vias: Ama-Blind vias amelela isigaba esikhethekile sama-vias agcwele abonisa umzila onqunyiwe, aphela ngaphakathi kwezingqimba zangaphakathi ze-PCB substrate ngaphandle kokungena ngokuphelele. Lawa ma-vias adalwe ngokubhoboza kusukela ebusweni be-PCB kuya ezingqimbeni zangaphakathi ezinqunyiwe, kamuva agcwaliswe ngethusi ukuze kusungulwe ukuxhumana. Kufanelekile ukwakheka kwe-PCB encane lapho imikhawulo yesikhala ivimbela ukungena okugcwele, ama-blind vias anikeza enye indlela engabizi kakhulu kune-vias enemigodi ngokunciphisa izidingo zokubhoboza nokufaka iplati. Ukusebenza kahle kwazo okungokwemvelo kuzenza zibe ukukhetha okuthandwayo kwemiklamo ye-PCB enobuningi obukhulu lapho ukulungiswa kwendawo kubaluleke kakhulu.

4. Ama-Via Angcwatshwe: Ama-via angcwatshwe ayingxenye eyimfihlo kodwa ebalulekile yomklamo we-PCB, enza kube lula ukuxhumana phakathi kwezingqimba ngaphakathi kwemingcele ye-PCB ngaphandle kokudlulela ezindaweni zayo zangaphandle. Lawa ma-via abholwa ngokucophelela ngezingqimba zangaphakathi ezikhethiwe ze-PCB, bese egcwaliswa ngethusi ukuqinisekisa ukuxhumana okungenamthungo. Inzuzo ikakhulukazi ekucushweni kwe-PCB enezingqimba eziningi lapho ukubhoboza okubanzi ebhodini lonke kungafaka ubuqotho besakhiwo engcupheni, ama-via angcwatshwe anikeza ikhambi elisebenzayo lokulondoloza ukusebenza kwe-PCB ngenkathi kunciphisa ubunzima bokukhiqiza nezindleko.

5. Ama-Microvia: Ama-Microvia abonisa ama-vias aklanywe ngokunemba abonakala ngobukhulu bawo obuncane, anobubanzi obungu-0.15mm noma ngaphansi. Esebenzisa amasu okubhoboza nge-laser athuthukile, ama-microvia aklanywe ngokucophelela ukuze afake izakhiwo ze-PCB ezilinganiselwe endaweni lapho ama-vias avamile noma angaboni khona angase angasebenzi. Ngemva kokubhoboza nge-laser, lawa ma-aperture amancane agcwele ithusi ngenqubo yokufaka i-electroless plating, ephetha ngokuxhumana okuqinile kakhulu, kodwa okuqinile. Naphezu kwamakhono awo okusebenza athuthukisiwe, ukucubungula okuyinkimbinkimbi kanye nemishini ekhethekile edingekayo kwenza ama-microvia abe yisisombululo sekhwalithi ephezulu, ngokuvamile esigcinelwe izinhlelo zokusebenza ezidinga ukwenziwa okuncane kakhulu kanye nokwenza ngcono ukusebenza.

6. Ama-Microvia Ahlanganisiwe: Ama-microvia ahlanganisiwe amelela ukuphindaphinda okuthuthukisiwe kobuchwepheshe be-microvia, okwenza kube lula ukuxhumana kwe-interlayer ephezulu ngaphakathi kwama-PCB anezindawo zokuhlala ezilinganiselwe. Ngokubeka ama-microvia amaningi eduze, lawa ma-via avumela ukuguquguquka komzila okungenakuqhathaniswa kanye nobuqotho besignali, okwenza abe yinto ebalulekile ekusetshenzisweni kokusebenza okuphezulu lapho ukulinganiselwa kwesikhala kudinga ukusetshenziswa kwezinsiza okulungile. Inqubo eyinkimbinkimbi yokubhoboza nokugcwalisa ehambisana nama-microvia ahlanganisiwe igcizelela ukufaneleka kwawo ezinhlelweni ezikhethekile ezifuna ukusebenza okungapheli ngaphakathi kwezici zesimo esinqunyiwe.

Ngamafuphi, ukuhlukaniswa okuphelele kwama-vias agcwalisiwe kugcizelela indima yawo ebalulekile ekuvumeleni ukuxhumana okuqinile ngaphakathi kwama-PCB, okuhlinzekela inqwaba yokucatshangelwa kwedizayini kusukela ekuthuthukisweni kwendawo kuye ekulondolozweni kobuqotho. Ngokukhetha ngobuhlakani kanye nokuhlanganisa uhlobo olufanele lwama-vias agcwalisiwe, abaklami be-PCB bangazulazula enkingeni yedizayini yesimanje ye-electronics ngokuzethemba nangokunemba.

Uma lesi sidingo sithinta ukutholakala noma ukukhishwa komkhiqizo, siqhathanise nokubuyekezwa komklamo we-PCB kanye ne -aluminium substrate PCB ngaphambi kokuthumela amafayela okugcina ukuze abuyekezwe.

Izinzuzo zokugcwaliswa kweVias ku-PCB Design

Emhlabeni oyinkimbinkimbi wedizayini yebhodi lesifunda eliphrintiwe (PCB), ukufakwa kwamasu okugcwaliswa kwe-vias kuveza inqwaba yezinzuzo, okukhulisa ukwethembeka, ukusebenza, kanye nokwenziwa kwamasistimu kagesi. Ake sihlole izinzuzo eziphelele ezinikezwa ngama-vias agcwalisiwe:

1. Ukwethenjelwa Okuthuthukisiwe

I-Vis egcwalisiwe isebenza njengabanakekeli abaqinile bobuqotho be-PCB, iqinisa ukwethembeka phakathi kwezimo zemvelo ezinamandla. Ngokukhuthaza uxhumo oluqinile lwe-interlayer, i- vias egcwalisiwe kunciphisa imiphumela emibi yokuhluka kwezinga lokushisa, ukudlidliza kwemishini, nokungena komswakama. Okubalulekile kokugcwalisa ngaphakathi kwe-Vis kunciphisa ukugxila kwengcindezi, kunciphisa amathuba okuhluleka kwesakhiwo kanye nokuqinisekisa ukusebenza okungaphazamiseki, ngisho nalapho kubhekene nezimo zokusebenza ezinzima.

2. Superior Thermal Performance

Ukuhlanganiswa okuhlakaniphile kwe-vias egcwalisiwe kuhumusha kumakhono angeziwe wokushabalalisa okushisayo ngaphakathi kwemihlangano ye-PCB. Izinto zokugcwalisa ngokugcwalisa zibonisa ukusebenza okushisayo okuphezulu, okusiza ukudluliswa kokushisa okusebenzayo kuzo zonke izendlalelo ze-PCB. Lesi simo sifinyelela umvuthwandaba ngokuncishiswa kwamazinga okushisa okusebenza, ikakhulukazi anenzuzo ezinhlelweni ezisebenza kahle kakhulu ezibonakala ngemithwalo yokushisa ephakanyisiwe. Amakhono athuthukisiwe okuphatha okushisayo aqinisekisa isikhathi eside sokuphila kwengxenye nokuthembeka okuqhubekayo kokusebenza, okubalulekile kuzo zonke izimboni ezihlukahlukene, okuhlanganisa ezokuxhumana, i-aerospace, nokuvikela.

3. Ubuqotho Besiginali Okuthuthukisiwe

Ama-vias agcwalisiwe avela njengabagcini abaqinile bobuqotho besignali, okuqinisa ukwethembeka kokudluliswa kwedatha ngaphakathi kwemihlangano ye-PCB. Ngokunqanda ukulahlekelwa kwesignali kanye nokunciphisa ukusakazeka komsindo, okokusebenza kokugcwalisa ngaphakathi kwe-vias kuqinisekisa ukusakazeka kwesignali ehlanzekile kuzo zonke izingqimba ze-PCB. Lokhu kumemezela indawo yokuxhumana kwedatha okuthembekile, okubalulekile ezinhlelweni zokusebenza ezigunyaza indlela yokusebenza eqinile kanye nokuvikeleka ekuphazamisekeni kozibuthe kagesi (EMI).

4. Ukusebenza Okuhle Kagesi

Ama-vias agcwalisiwe avela njengamapayipi okusebenza kagesi okuthuthukisiwe, asiza ukuqhutshwa kwamanje okungenamthungo kuzo zonke izendlalelo ze-PCB. Ukuthi kufakwe izinto ezisetshenziswayo ezifana nekhopha noma izinto ezingewona amaconsi njenge-epoxy, i-vias egcwalisiwe ibonisa ukuguquguquka kukagesi okuphakeme, ukwehla kwamandla kagesi anciphayo kanye nokuthuthukisa ukusebenza kahle kokulethwa kwamandla. Ama-micro-vias agcwaliswe ngethusi, ikakhulukazi, avula indawo yokuguquguquka okushisayo nokukagesi okuthuthukisiwe, kuhlanganiswe nokuncishiswa kwe-EMI nokushuba kwendlela, okukhuthaza ukufezeka kwemiklamo ye-PCB ehlangene kodwa enamandla.

5. I-Amplified Design Density

Ukuhlanganiswa kwamasu okugcwala kwe-vias kumemezela ukushintsha kwepharadigm ekuminyana kwedizayini ye-PCB, okuvumela ukuhlaliswa kohlu olubanzi lwezingxenye ngaphakathi kwendawo evalekile. Uma kuqhathaniswa nezindlela ezivamile zokudlula emgodini, izidlula ezigcwele zithatha indawo ethengiswayo encane kakhulu ku-substrate ye-PCB, kukhulula indawo ebalulekile yokubekwa kwezingxenye kanye nokwenza kahle komzila. Lokhu kuminyana kwedizayini ephakeme kukhuthaza ukufezeka kwezakhiwo ze-PCB eziyinkimbinkimbi, ezinothile ngesici, ezibalulekile ezinhlelweni zokusebenza ezigunyaza ukusebenza okuphezulu ngaphakathi kwezici zefomu elivinjiwe.

6. Izixazululo Ezingabizi

Naphezu kokucatshangelwa kokuqala kokutshalwa kwezimali, izindlela ezigcwalisiwe zivela njengokutshalwa kwezimali okuhlakaniphile, ezimemezela ukonga izindleko zesikhathi eside kanye nempumelelo yokusebenza. Ngokwenza lula ubukhulu be-PCB kanye nokunqanda izehlakalo zokwehluleka, ukugcwaliswa ngendlela kukhuthaza ukuncipha okubonakalayo ekusetshenzisweni kwezinto ezibonakalayo nezindleko zokukhiqiza. Ngaphezu kwalokho, indima yabo ekugwemeni izimangalo zewaranti kanye nokukhunjulwa komkhiqizo kukhulisa ukonga izindleko, kuqinise ukuqina kwezomnotho kwemizamo yokukhiqiza ye-PCB.

7. Izinqubo Zomhlangano Ezilula

Ama-vias agcwalisiwe asheshisa inqubo yokuhlanganisa i-PCB , ayigcwalise ngezinga elisha lokusebenza kahle nokuthembeka. Izinto zokugcwalisa ezingaphakathi kwama-vias zinikeza ukwesekwa okuqinile ezingxenyeni ezifakiwe, zinciphisa ingozi yokufuduka noma ukunyakaza ngesikhathi sokusebenza kokuhlanganisa. Ngaphezu kwalokho, ukuqina kwesakhiwo okunikezwa ama-vias agcwalisiwe kunciphisa amathuba okulimala kwebhodi, kumemezela imijikelezo yokukhiqiza esheshayo kanye nokonga izindleko okubonakalayo.

Ngamafuphi, ukuhlanganiswa okuhlakaniphile kwe-vias egcwele kwazisa indawo yezinzuzo ezingenakuqhathaniswa, ukweqa ama-paradigms angokwesiko ukuze kungeniswe inkathi entsha yokwethembeka, ukusebenza, kanye nokwenziwa ekwakhiweni kwe-PCB. Ukusebenzisa izinzuzo ezingokwemvelo zokugcwaliswa kwe-Vis kunika amandla abaklami bezinto zikagesi ukuthi bazulazule enkingeni yezinto zikagesi zesimanje ngokuzethemba nangokunemba, kuvuleke umkhakha wokuqamba kanye nokusebenza kuzo zonke izizinda ezihlukene zezimboni.

Ngenqubo Yokugcwalisa Ekwenziweni Kwe-PCB

Inqubo yokugcwalisa nge-via-filling iyisiteji esibalulekile ekwenziweni kwebhodi lesekethe eliphrintiwe (PCB), elibalulekile ekuqinisekiseni ukuxhumana okuqinile kwe-interlayer nokusebenza kwebhodi okuphelele. Le nqubo yokucophelela ibandakanya ukugcwalisa ngezimbobo ngento eqhutshwayo noma engaqhubeki, okusiza ukuhlanganisa okungenamthungo phakathi kwezendlalelo ezihlukene ze-PCB. Nakhu ukuhlola okujulile kwezinyathelo ezibalulekile ezihilelekile enqubweni yokugcwalisa ngokugcwalisa:

Ukuqinisekiswa Kobunjiniyela be-CAM : Inqubo iqala ngobunjiniyela be-CAM ukuqinisekisa nokuhlola ama-via adinga ukugcwaliswa. Onjiniyela baphatha la ma-via ngendlela ehlukile ngokwezincazelo zokukhiqiza. Lesi sinyathelo sibalulekile njengoba siqinisekisa ukuphathwa kahle kwama-via, uma ubheka ukuthi inqubo yokugcwalisa i-via ihluke kakhulu kumasu avamile. Ubunjiniyela be-CAM budinga isikhathi esanele sokwenza izinguquko kumafayela e-gerber kanye nokugeleza kwenqubo ye-ERP, okungathinta inqubekela phambili ye-PCB. Ukuqinisekisa kusengaphambili kuthuthukisa isivuno sokuqala futhi kuthuthukise ukusebenza kwekhwalithi.

Ukulungiselela Ibhodi : Ngaphambi kokuqala inqubo yokugcwalisa nge-via-filling, ukulungiselela ngokucophelela i-PCB kubalulekile. Ibhodi lihlanzwa kahle ukuze kususwe noma yikuphi ukungcola okungaphazamisa ukunamathela nokusebenza kahle kwezinto zokugcwalisa. Ngisho nezinhlayiya ezincane zothuli noma imfucumfucu zingalimaza ubuqotho bokuxhumeka nge-via, okugcizelela ukubaluleka kobuso bebhodi obuhlanzekile.

Ukubhoboza Imigodi : Isinyathelo esilandelayo esibalulekile sihilela ukubhoboza ngokuqondile ngemigodi efakwe ku-substrate ye-PCB. Imishini yokubhoboza elawulwa yikhompyutha esezingeni eliphezulu iqinisekisa ukunemba kobubanzi bembobo, ukujula, kanye nokubekwa, okuhambisana nezidingo ezithile zomklamo we-PCB. Ubukhulu bemigodi ebhoboziwe bulinganiswa ngokucophelela ngokusekelwe ezicacisweni zebhodi kanye nezingxenye ezihlosiwe zokufaka, ukuqinisekisa ukuxhumana okuhle kakhulu phakathi kwezingqimba.

Ukuhlanza Imigodi : Ngemva kwenqubo yokubhoboza, ukuhlanza ngokuphelele imigodi edlulayo kubalulekile ukuze kususwe noma yikuphi ukungcola okusele noma izinto ezingcolisayo. Ukusebenzisa ama-vacuum cleaner noma ama-air pistol anomfutho ophezulu kwenza kube lula ukukhipha izinhlayiya ezikhululekile, kuqinisekiswe ukufinyelela okungenakuvinjelwa emisebenzini elandelayo yokugcwalisa. Lolu hlelo lokuhlanza ngokucophelela lubalulekile ekwandiseni ukunamathela kanye nobuqotho bezinto zokugcwalisa ezingaphakathi kwemigodi edlulayo.

Ukusebenzisa Izinto Zokugcwalisa : Uma izimbobo ezidlulayo zilungisiwe futhi zihlanzekile, kuqala ukusetshenziswa kwezinto zokugcwalisa. Kuye ngezidingo ezithile zomklamo we-PCB, izinto zokugcwalisa zingase zibe eziqhubayo noma ezingaqhubiyo. Izigcwalisi ezingaqhubiyo, njenge-epoxy resin, zivame ukusetshenziselwa ukuvikela nokuqinisa ukuxhumana kwe-via, kuyilapho izigcwalisi eziqhubayo, eziqukethe izinsimbi ezifana nethusi noma isiliva, zenza kube lula ukuqhuba ugesi okungenamthungo phakathi kwezingqimba.

Ukulungisa Izinto : Ngemva kokusetshenziswa kwezinto zokugcwalisa, inqubo yokuqinisa noma yokuqinisa iyaqalwa ukuze kuqiniswe ukuxhumana nge-via. Amasu ahlukahlukene, okuhlanganisa ukusetshenziswa kokushisa, ukuvezwa kokukhanya kwe-UV, noma ama-agent okwelapha amakhemikhali, angasetshenziswa ngokusekelwe ezimpahleni zezinto zokugcwalisa ezisetshenzisiwe. Le nqubo yokulungisa iqinisekisa ukusungulwa kwesibopho esizinzile nesithembekile phakathi kwezinto zokugcwalisa nezindonga zemigodi nge-via, okuqinisa ukuxhumana kwezingqimba.

Ukuqedela iBhodi : Lapho inqubo yokulungisa ibhodi iqediwe, isigaba sokugcina sihilela ukusetshenziswa kwesembozo sokuvikela noma imaski yokubopha ebusweni be-PCB. Lolu ngqimba olwengeziwe lusebenza ukuvikela ibhodi ezicini zemvelo ezifana nomswakama, ukugqwala, kanye nokuguguleka komshini, okuthuthukisa ubude bayo nokuqina kwayo. Ngaphezu kwalokho, ubuso obubushelelezi nobufanayo obunikezwa yisembozo sokuvikela busiza ukufakwa kwezingxenye ngaphandle kokuphazamiseka, kuqinisekiswe ukusebenza kahle kanye nokusebenza kahle kwe-PCB ehlanganisiwe.

Empeleni, inqubo yokugcwalisa nge-via-filling imele insika yokwenziwa kwe-PCB, eveza ukunemba, ukwethembeka, nokunaka ngokucophelela imininingwane. Ngokunamathela ezindinganisweni zekhwalithi eqinile nokusebenzisa izindlela zokukhiqiza ezithuthukile, abakhiqizi be-PCB bangafinyelela amazinga angenakuqhathaniswa okuxhumana kwe-interlayer nokusebenza kahle kakhulu emikhiqizweni yabo.

Izinzuzo ze-Conductive Filled Vias

I-conductive fill vias, ikakhulukazi i-micro-vias egcwaliswe ngethusi, inikeza izinzuzo ezimbalwa ekwakhiweni nasekukhiqizeni i-PCB:

1. Ukuminyana Komzila Okuphezulu: Ama-Micro-Vis anika amandla ukuminyana okuphezulu komzila ku-PCB, okuvumela ukuncipha okukhulu kusayizi we-PCB uwonke kanye nezendlalelo ezimbalwa. Lokhu kubangela ukongiwa kwezindleko ngenxa yokunciphisa impahla kanye nezinqubo zokukhiqiza ezenziwe lula.
2. Ukwehliswa kwe-EMI: Ngokunciphisa usayizi nobude bezindlela zesignali, ama-micro-vias anomthelela ekwehliseni ukuphazanyiswa kukagesi (EMI), okuholela ekuthuthukisweni kobuqotho besignali kanye nomsindo oncishisiwe kumasekhethi kagesi.
3. I-Thermal ne-Electric Conductivity engcono: Ama-micro-vias agcwaliswe ngethusi anikezela nge-thermal ephezulu kanye ne-electrical conductivity uma kuqhathaniswa ne-vias yendabuko. Lokhu kuthuthukisa ukusebenza kahle kokukhipha ukushisa futhi kuqinisekisa ukusebenza kahle kukagesi kuyo yonke i-PCB.

I-Highleap Electronic isebenzisa ama-micro-vias kumabhodi ayo e-HDI (High-Density Interconnect) ukuze ifinyelele izici ezincane zefomu kanye nesisindo esilula. Isici sefomu esincishisiwe siholela emabangeni amafushane phakathi kwezingxenye, kunciphisa ukumelana okuphelele futhi kuthuthukise ukuhanjiswa kukagesi. Ngaphezu kwalokho, ukugcwaliswa kwethusi kuma-micro-vias kunciphisa ukumelana, kusiza ekunciphiseni i-EMI.

Njengoba ubuchwepheshe be-surface-mount technologies (SMTs) buqhubeka nokuncipha ngosayizi, amaphedi amancane ayadingeka ukuze uwakhweze. Ama-Micro-vias, ngenxa yokuncipha kosayizi wawo, afaneleka kahle ekwandiseni ukuminyana komzila, ikakhulukazi kumadizayini we-via-in-pad ahloselwe izingxenye zephimbo eliseduze njengama-BGA (I-Ball Grid Arrays).

I-conductive egcwele i-vias ihamba phambili ekuqhubekiseni ukushisa kude nezingxenye ezishisayo, isiza ukulahlwa kokushisa okusebenzayo kuyo yonke i-PCB. Kodwa-ke, umehluko ku-coefficient of thermal expansion (CTE) phakathi kokugcwaliswa kwe-metallic kanye ne-laminate ezungezile kungaholela ekucindezelekeni komshini kanye nokuphuka okungenzeka phakathi kwephedi nodonga lwembobo.

Naphezu kwalezi zinselele, izinzuzo ze-conductive egcwaliswe nge-vias zidlula izithiyo zazo, okuzenza kube ukukhetha okuncanyelwayo kwemiklamo ye-PCB esebenza kahle edinga izici zefomu elihlangene, ukuphathwa kokushisa okuphumelelayo, nokusebenza okuthembekile kukagesi.

Amasu Okugcwalisa Ekwenziweni Kwe-PCB

Kusetshenziswa izindlela ezehlukene zokugcwalisa ngokusebenzisa ibhodi lesekethe ephrintiwe (PCB), ehambisana nezidingo ezithile zebhodi kanye namandla omkhiqizi. Lawa masu ahlanganisa:

• Ukugcwaliswa Kwe-Plated Through-Hole (PTH).: Ukugcwaliswa kwe-plated through-hole (PTH) kufaka phakathi i-electroplating kanye nokufaka insimbi ngaphakathi ngezimbobo. Le ndlela iqala ngokucwilisa i-PCB esixazululweni se-electrolyte nokusebenzisa amandla kagesi, ngokuvamile kusetshenziswa ithusi njengensimbi. Ngokusebenzisa i-electroplating, ama-ion e-copper ahlangana nezindonga ze-via holes, okwenza isixhumanisi esiqinile nesiqhubayo phakathi kwezingqimba ezihlukene zebhodi. Ukugcwaliswa kwe-PTH kusetshenziswa kabanzi ukuthembeka kwayo kanye nokuxhumana kukagesi okuqinile, okuyenza ifanelekele izinhlelo zokusebenza ze-PCB ezahlukahlukene.
• Ukugcwaliswa kwe-epoxy okungaqhubeki: Ukugcwaliswa kwe-epoxy okungaqhubeki kusebenzisa i-epoxy resin ukugcwalisa izimbobo, ukwakha uxhumano oluqinile nezindonga zembobo. Njengoba i-epoxy glue ingeyona i-conductive, ayithinti izici zikagesi zebhodi. Le nqubo ivame ukusetshenziswa kuzinhlelo zokusebenza ezingabalulekile lapho ukuqhutshwa kukagesi kungeyona into ebaluleke kakhulu. Ukugcwaliswa kwe-epoxy okungaqhubeki kunikeza ukwahlukanisa nokuqiniswa kokuxhumana nge-via, okuqinisekisa ubuqotho nokuthembeka kwawo ngokuhamba kwesikhathi.
• Ukugcwalisa Ukunamathisela Okuqhubekayo: Ukugcwaliswa kokunamathisela okuqhutshwayo kuhilela ukusetshenziswa kokunamathisela okuhlanganisa ama-shavings ensimbi amiswe ku-binder material. I-paste isetshenziswa ezimbotsheni, ngokuvamile kusetshenziswa amasu okuphrinta kwesikrini. Uma ususetshenzisiwe, unamathisele uye woma futhi uqine, unamathele ezindongeni ze-via holes futhi wenze indlela yokuqondisa phakathi kwezingqimba ze-PCB. Le nqubo iwusizo ikakhulukazi kumabhodi aphansi kakhulu lapho ukucatshangelwa kwezindleko kubaluleke kakhulu. Ukugcwaliswa kwe-conductor paste kunikeza isisombululo esingabizi kakhulu sokuthola ukuxhumana kukagesi ngenkathi kugcinwa ukusebenza kwebhodi jikelele.

Indlela ngayinye yokugcwalisa ihlinzeka ngezinzuzo ezihlukile futhi ikhethwa ngokuya ngezidingo ezithile zomklamo we-PCB, izici zikagesi ezifiselekayo, nokucatshangelwa kwezindleko. Ngokusebenzisa lezi zindlela zokugcwalisa, abakhiqizi bangafinyelela ukuxhumana kwe-interlayer okuphelele futhi baqinisekise ukwethembeka nokusebenza komkhiqizo we-PCB oqediwe.

Isiphetho

Ama-PCB ayizingxenye ezibalulekile kumishini kagesi, futhi ama-vias adlala indima ebalulekile ekwakhiweni kwawo. Ama-Vias yizimbobo ezincane ezibhobozwe ngezendlalelo zethusi ku-PCB, ezimbozwe ngethusi ukudala ukuxhumana kukagesi phakathi kwezingqimba. Izinhlobo ezahlukahlukene zama-vias, kufaka phakathi ama-pass-hole, ama-microvias, kanye nemiklamo ye-via-in-pad, asetshenziswa kuma-PCB.

Ngokugcwalisa, inqubo yokukhiqiza ye-PCB, ihlanganisa ukugcwalisa lezi zimbobo ngento eqhubayo noma engaqhubeki, efana ne-epoxy, ukuthuthukisa ubuqotho besignali, ukuphathwa kokushisa, nokuthembeka kukonke. Ama-vias avaliwe agcwele ithusi amelela indlela ethuthuke kakhulu yokugcwalisa, enikeza ukuqhutshwa kwe-thermal okuthuthukisiwe kanye nokulahla. Abaklami be-PCB kufanele bacabangele ngokucophelela uhlobo lwe-vias kanye namasu okugcwalisa afaneleka kakhulu izidingo zabo zomklamo we-PCB.