Izinto Zokulungiselela Ngaphambi Kokukhiqiza i-Multilayer PCB

I-Prepreg iyinto yokubopha eguqula inqwaba yezingqimba zethusi ngazinye ibe yi-PCB eyodwa enezingqimba eziningi, futhi ukuyikhetha kahle kungenye yezinqumo ezibalulekile nezinganakwa kakhulu ekukhiqizeni izingqimba eziningi. I-prepreg efanele igcwalisa izikhala phakathi kwethusi eliqoshwe kahle, ibeka isikhala se-dielectric esilawula impedance, futhi ibophe yonke inqwaba ibe yi-laminate engenasici ngaphansi kokushisa nokucindezela. I-prepreg engalungile - noma okuqukethwe kwe-resin okungalungile kwephethini yengqimba ethile - ikhiqiza amaphutha e-voids, delamination, noma impedance angase angabonakali kuze kube yilapho ibhodi lisebenza. Lo mhlahlandlela uchaza ukuthi i-core kanye ne-prepreg zisebenza kanjani ndawonye, ​​​​kungani okuqukethwe kwe-resin kubalulekile, ukuthi yini edingwa yimiklamo ye-high-layer-count, nokuthi ungabuyekeza kanjani ukukhetha kwezinto ngaphambi kokukhiqiza.

Ukuqonda Izinto Eziyinhloko Nezinto Zokulungiselela Ukukhulelwa

I-PCB enezingqimba eziningi ishintshanisa izinhlobo ezimbili zezinto. Ingaphakathi liyi-laminate eboshwe ngethusi ngokuphelele: ishidi eliqinile le-resin nendwangu yengilazi enethusi eliboshwe kolunye noma zombili ubuso, elithwala ukujikeleza okuqoshiwe kwezingqimba zangaphakathi. I-Prepreg — isifinyezo se-pre-impregnated — yindwangu yengilazi ehlanganiswe ne-resin eboshwe kancane, eshiywe esimweni sesigaba se-B ukuze ikwazi ukugeleza futhi ibophane lapho ishiswa.

Ngesikhathi sokulamina, amashidi e-prepreg abekwa phakathi kwama-cores aqoshiwe, bese yonke inqwaba icindezelwa ngaphansi kokushisa nokucindezela. I-prepreg resin iyathamba, igeleze ukuze igcwalise izikhala ezizungeze iminonjana yethusi, bese iphola ngokuphelele, ihlanganise ama-cores ebhodini elilodwa eliqinile. Ama-cores ahlinzeka ngezendlalelo zesekethe ezizinzile, ezilinganiselwe ngosayizi; i-prepreg inikeza ukubopha kanye nesikhala se-dielectric esilawulwayo phakathi kwazo. Zombili kumele zivela ohlelweni lwezinto ezihambisanayo ukuze i-resin chemistry yazo, izinga lengilazi, kanye nokuziphatha kokushisa kufane. Indima edlalwa yizinto zombili emiklamo ethuthukisiwe ihlanganiswe kumhlahlandlela wethu wezinto ze-PCB zokubala okuphezulu , kanye nokucindezela kokunikezwa kwe-laminate engaphansi kokubuka konke kokuntuleka kwezinto ze-PCB.

Okuqukethwe kwe-Resin kanye nokusebenza kwe-Lamination

Isici esichazayo se-prepreg okuqukethwe kwayo kwe-resin — isilinganiso se-resin nendwangu yengilazi, evezwa njengephesenti. Okuqukethwe kwe-resin kunquma ukuthi ingakanani i-resin etholakalayo ukuze igeleze ezikhaleni ezizungeze ithusi ngesikhathi sokulamina, futhi kumele ifaniswe nephethini yethusi elibopha phezu kwayo. Ingqimba enethusi elisindayo noma izindiza ezibanzi idinga i-prepreg ene-resin eyanele ukugcwalisa izikhala ezijulile ezisele phakathi kwezici; i-resin encane kakhulu ishiya izikhala ezingagcwalisiwe eziba yizikhala, futhi eziningi kakhulu zingabangela ukugeleza ngokweqile, ukushintshashintsha kobukhulu, kanye nokuntuleka kwe-resin kwenye indawo.

Okuqukethwe kwe-resin kusetha futhi ukujiya kwe-dielectric okulungisiwe phakathi kwezingqimba, okulawula ngqo i-impedance. Ama-prepreg amabili anencazelo efanayo kodwa okuqukethwe kwe-resin okuhlukile azocindezela kubukhulu obuhlukene futhi aveze i-impedance ehlukene, ngakho-ke ukukhetha kwe-prepreg kuyingxenye yokubala i-impedance, hhayi imininingwane eshiywe phansi kwesitolo. I-stack-up efanele ichaza ukwakhiwa kwe-prepreg - isitayela sengilazi kanye nokuqukethwe kwe-resin - kwengqimba ngayinye ye-dielectric ukuze ukugcwalisa, ukujiya, kanye ne-impedance kugcwaliswe ndawonye. Yingakho ukukhetha kwe-prepreg kungenakuhlukaniswa nomsebenzi we-impedance kanye nokukhetha izinto ezichazwe kumhlahlandlela wethu wokukhetha izinto ze-PCB wesivinini esikhulu.

Izidingo ze-PCB ze-Layer Count High

Amabhodi anezingqimba eziphakeme aqinisa yonke into ecatshangelwayo yokulungiselela kusengaphambili ngoba kunezindawo eziningi zokubopha, ngayinye okumele icindezele kahle ukuze ibhodi idlule. Njengoba i-AI kanye nehadiwe yokuxhumana iqhubekisele phambili ukubalwa kwezingqimba - amabhodi eseva ye-AI asuke ezingqimbeni ezingaba ngu-18 ngo-2023 aya ezingqimbeni ezingu-32 ngo-2025 - izidingo zokubekezelelana ezihlanganisiwe ekugcwaliseni kokulungiselela kusengaphambili, ukujiya, kanye nokubhaliswa zikhule kakhulu. Ukwehluka okuncane kobukhulu bengqimba ngayinye okungenangozi ebhodini elinezingqimba ezingu-8 kuqoqana ezingqimbeni ezingu-32 kube yiphutha elikhulu lokujiya okuphelele kanye ne-impedance.

Lezi zakhiwo zivame ukucacisa izinhlelo zezinto ezilahlekelwa kancane, lapho i-prepreg kumele ibe yizinga lokulahlekelwa okuncane elihambisana nama-cores alahlekelwa kancane, ngokuvamile kusetshenziswa i-HVLP copper ebushelelezi kanye nengilazi ekhethekile ye-low-Dk. I-prepreg ayikwazi ukuba yibanga elijwayelekile le-FR-4 elihlanganiswe ne-core elahlekelwa kancane; izinhlelo ze-resin kumele zihambisane ukuze zibophe ngokuthembekile futhi zilethe ukusebenza okuhlosiwe kagesi. Ngakho-ke ama-stack-count-count-count aphezulu athwala kokubili izidingo zikagesi zezinto ezilahlekelwa kancane kanye nezidingo zemishini ze-interfaces eziningi ngesikhathi esisodwa, yingakho zibuyekezwa ngokucophelela ngaphambi kokwenziwa. Ziphinde zizuze ukuvezwa kokunikezwa kwalezo zinto ezifakiwe - ukushoda kwe-CCL okufanayo kanye nokushoda kwe-copper foil okuvimbela ama-cores kuvimbela i-prepreg efanayo. Izidingo zezinto ezibanzi zala mabhodi zichazwe kumhlahlandlela wethu wezinto ze-PCB zeseva ye-AI.

Izingozi Ezivamile Zokucwilisa

Ukwehluleka okuningi kwezingqimba eziningi kulandeleka emuva kwenye yezinkinga ezimbalwa ze-lamination, futhi ukukhetha i-prepreg kuhlala phakathi nendawo ngayinye. Ukungasebenzi kwenzeka lapho kungekho ukugeleza kwe-resin okwanele ukugcwalisa izikhala ezizungeze ithusi, okushiya umoya ovalelekile owenza buthaka isibopho futhi ungahluleka ekujikelezeni kokushisa. Ukuhlukanisa - ukuhlukaniswa phakathi kwezingqimba - kubangelwa ukubopha okungekuhle kwe-resin kuya enkabeni, ngokuvamile okuvela ezinhlelweni zezinto ezingahambisani noma ezindaweni ezingcolile. Ukuntuleka kwe-resin, lapho i-resin encane kakhulu ihlala khona phezu kwezici, kushiya izindawo ezibuthakathaka neziqhekekile.

Ezinye izingozi ezimbili ziyanda ngokubalwa kwezingqimba. Iphutha lokubhalisa kusukela kungqimba kuya kwezingqimba — ukungalungi kahle phakathi kwezingqimba eziqoshiwe — likhula ngenani lezingqimba kanye nokunyakaza kobukhulu bezinto ngesikhathi sokucindezela, futhi kungabangela ukuthi ama-vias abholiwe aphuthelwe ama-pad awo. I-Warpage, ukugoba kwebhodi eliqediwe, kuvela ekunwetshweni kokushisa okungalingani kuyo yonke inqwaba kanye nokwakhiwa okungalingani, futhi kwenza kube nzima ukuhlanganisa. Ngayinye yalezi zingavinjelwa esigabeni sokuklama ngokukhetha okulungile kokuqukethwe kwe-prepreg resin, ukuhlanganisa okuphakathi nokwangaphambi kokulungiselela okuhambisanayo, ukwakhiwa okulinganiselayo okulinganiselayo, kanye nokuhlanganiswa okuqinisekisiwe — yingakho ukubuyekezwa kwezinto kubaluleke kakhulu kunanoma yimuphi umzamo wokubuyisa ngemva kokucindezela. Lezi zinto ezicatshangelwayo zemishini zihambisana nalezo ezisesiqondisweni sethu sezinto ze-PCB zokubala kwezingqimba eziphakeme.

Ukutholakala Kwezinto Ezibalulekile Nesikhathi Sokuhola

Ukutholakala kwe-prepreg manje sekuwumkhawulo wokuhlela ngokwako, ngoba i-prepreg isebenzisa i-resin efanayo, indwangu yengilazi, kanye nokunikezwa kwe-laminate okubanzi okwaqina phakathi kuka-2025 no-2026. Ama-resin akhethekile afanayo kanye nezibuko ze-low-Dk ezivimbela i-laminate eyinhloko nazo zivimbela i-prepreg efanayo, futhi lokhu kokubili kumele ku-odwe njengesethi ehambisanayo. Izikhathi zokuhola ngo-2026 zibonisa lokhu: izinto ezijwayelekile ze-FR-4 zisuke emavikini angu-2-3 omlando zaya cishe emavikini angu-6-8, amazinga okulahlekelwa okuphakathi kanye nokulahlekelwa okuphansi zaya emavikini angu-14-18, kanye namazinga akhethekile athuthuke kakhulu aya ekwabiweni kuphela emavikini angu-20 noma ngaphezulu, ngokunikezwa kwe-epoxy resin ngokwayo kusuka emavikini angaba ngu-3 kuya emavikini angu-15.

Umphumela osebenzayo ukuthi i-prepreg kanye ne-core kumele kuhlelwe ndawonye futhi ngaphambi kwesikhathi sokukhiqiza. Uku-oda i-core enelahleko eliphansi ngaphandle kokuqinisekisa i-prepreg ehambisanayo enelahleko eliphansi - noma okuphambene nalokho - kushiya inqwaba engenakucindezelwa. Izibopho zezinto zezinhlelo ezinelahleko eliphansi zibekwa kakhulu emavikini angu-16-20 kusengaphambili, futhi izinhlelo zokubala okuphezulu ezincike kumabanga akhethekile kufanele ziphathe isikhathi sokuhola sezinto ezibonakalayo, hhayi umugqa wokukhiqiza, njengento yesheduli yokubopha. Isithombe esigcwele sesikhathi sokuhola sibekwe kumhlahlandlela wethu wesikhathi sokuhola we-PCB laminate.

Inqubo Yokubuyekeza Ngaphambi Kokukhiqiza

Ibhodi elinokwethenjelwa elinezingqimba eziningi liyanqunywa ekubuyekezweni kwe-stack-up, ngaphambi kokuba noma yikuphi okudingwayo ku-odwe. Ukubuyekezwa kuqinisekisa ukuthi ungqimba ngalunye lwe-dielectric lunokwakhiwa kwe-prepreg okunokuqukethwe kwe-resin okulungile kwephethini yethusi elibopha phezu kwalo; ukuthi i-core kanye ne-prepreg zivela ohlelweni lwezinto ezihambisanayo; ukuthi ukujiya okuphelele okuqediwe kanye nobukhulu be-dielectric ngengqimba ngayinye kukhiqiza i-target impedance; nokuthi ukwakhiwa kuyalingana ukulawula i-warpage. Kuphinde kuqinisekise ukutholakala kwezinto — ukuthi i-core ecacisiwe kanye ne-prepreg efanayo empeleni ingabiwa ngaphakathi kwesikhathi sohlelo, nokuthi kukhona okulingana okufanelekile lapho ibanga lilinganiselwe.

Lokhu kubuyekezwa yilapho kubanjwa khona futhi kulungiswe ukucaciswa ngokweqile, okubalulekile ngoba ingxenye enkulu yezindleko zebhodi kanye nengozi ivalelwe esigabeni sokuklama — ngokulinganiselwa okuthile kufika ku-80% wezindleko zebhodi kunqunywa ngaphambi kokuba kuqale ukwenziwa. Ukushintsha uhlelo lokulungiselela oluphansi lapho i-Tg FR-4 ephezulu ingasebenza khona, noma ukucacisa ukubekezelelana kokuqukethwe kwe-resin okuqinile kunezidingo zomklamo, kunezela kokubili ukuvezwa kwezindleko kanye nokwabiwa. I-Highleap Electronics yenza ukubalwa okuqinisekisiwe kokuqoqwa kanye nokubuyekezwa kokutholakala kwezinto kuzo zonke izinhlelo eziningi, ngakho-ke i-prepreg kanye ne-core kuqinisekiswa ndawonye ngokumelene nezinhloso zikagesi kanye nokunikezwa kwangempela ngaphambi kokuba kubekwe i-oda.

Imikhuba Emihle Kakhulu Yokukhiqiza Okuthembekile

Imikhuba embalwa ihlukanisa njalo izinhlelo ezithembekile zezendlalelo eziningi kwezinezinkinga. Bhangqa i-core kanye ne-prepreg njengohlelo lwezinto olulodwa kunokuxuba amamaki, ukuze i-resin chemistry kanye nokuziphatha kokushisa kufane. Khetha okuqukethwe kwe-resin ngesendlalelo ngasinye ukuze kufane nephethini yethusi, kunokusebenzisa i-prepreg eyodwa ngokufanayo esitakini esinezisindo zethusi ezixubile. Gcina ukwakheka kuhambisana ngokulinganayo ukulawula i-warpage, ikakhulukazi kumabhodi anezingqimba eziphakeme. Cacisa amamaki okulahlekelwa okuphansi kanye nokukhethekile kuphela lapho izinga lesignali liwadinga khona, bese usebenzisa i-hybrid stack-up ukuze uvale izinto ze-premium - kanye nengozi yokwabiwa kwazo - ezingqimbeni ezibalulekile.

Ngasohlangothini lokunikezwa, hlelani ingqikithi kanye nokulungiselela ndawonye, ​​bekani izibopho zezinto ngaphambi kakhulu kwesidingo sokukhiqiza, fanelekela uhlelo lwesibili lwezinto ezihambisanayo kunoma yiliphi ibanga elinqunyelwe, bese nabelana ngesibikezelo esiqhubekayo ukuze umenzi akwazi ukubekela eceleni isabelo ngokumelene nesidingo sangempela. Ukuphatha i-prepreg njengento eklanywe ngobunjiniyela, evinjelwe ukuhlinzekwa - kunokuba kube yishidi lokubopha elijwayelekile - yilokho okugcina uhlelo lwezingqimba eziningi lusesikhathini futhi luthembekile emakethe ka-2026.

Thola Isibuyekezo Esihlanganisiwe Se-PCB Yakho Yezingqimba Eziningi

I-Highleap Electronics iyifektri yokukhiqiza nokuhlanganisa i-PCB. Kuzo zonke izinhlelo zethu zokukhiqiza ze-PCB kanye nezinhlelo ze-PCB ezinezingqimba eziningi siqinisekisa ukuhlanganiswa kwe-core-and-prepreg, okuqukethwe kwe-resin, i-impedance, kanye nokutholakala kwezinto ndawonye, ​​ngakho-ke ibhodi elinezingqimba eziningi lenzelwe ukunamathela ngokwethembeka okokuqala.

Imibuzo Evame Ukubuzwa Yokuhlela Izinto Zokuqala

Uyini umehluko phakathi kwe-core kanye ne-prepreg->

Ingaphakathi liyi-laminate eboshwe ngethusi evuthwe ngokuphelele ephethe ungqimba lwangaphakathi oluqoshwe nge-earring. I-Prepreg yindwangu yengilazi efakwe i-resin evuthwe kancane (isigaba se-B) egeleza futhi ibophe lapho ishiswa, ihlanganise ama-core ebhodini elilodwa ngesikhathi se-lamination. Ama-core ahlinzeka ngezingqimba zesekethe ezizinzile; i-prepreg inikeza ukubopha kanye nesikhala se-dielectric phakathi kwazo.

Kungani okuqukethwe kwe-prepreg resin kubalulekile->

Okuqukethwe kwe-resin kusetha ukuthi ingakanani i-resin etholakalayo ukugeleza nxazonke zethusi ngesikhathi se-lamination futhi kunquma ukujiya kwe-dielectric okulungisiwe phakathi kwezingqimba. Kumelwe kufane nephethini yethusi — i-resin encane kakhulu ishiya izikhala, i-resin eningi kakhulu ibangela ukuhlukahluka kobukhulu — futhi ngoba ilawula ukujiya kwe-dielectric, ithinta ngqo i-impedance.

Ngingakwazi yini ukuhlanganisa noma yikuphi ukuhlelwa kwangaphambili nanoma yimuphi umgogodla->

Cha. I-Core kanye ne-prepreg kufanele zivela ohlelweni lwezinto ezihambisanayo ukuze i-resin chemistry yazo, izinga lengilazi, kanye nokuziphatha kokushisa kufane. Ukuhlanganisa i-core ene-low loss ne-generic FR-4 prepreg kuyingozi ekubophweni okubi, ukuhlukaniswa, kanye nokusebenza okungalungile kukagesi.

Yiziphi izinkinga ezivame kakhulu zokubopha i-lamination->

Ivala ukugeleza kwe-resin okunganele, ukuhlukaniswa kokubopha kwe-resin kuya enkabeni okungekuhle, ukuntuleka kwe-resin ngenxa yezici ezincane kakhulu ze-resin, iphutha lokubhalisa i-layer-to-layer elikhula ngokubalwa kwe-layer, kanye nokuqhekeka kokukhula kokushisa okungalingani noma ukwakhiwa okungalingani. Iningi livinjelwa ukukhetha okufanele kwangaphambilini kanye nokuhlanganiswa okuqinisekisiwe.

Ukulungiselela kusengaphambili kuthinta kanjani isikhathi sokuhola ngo-2026->

I-Prepreg isebenzisa i-resin efanayo elinganiselwe kanye nendwangu yengilazi njenge-core laminate futhi kumele i-odwe njengesethi efanayo. Izinto ezijwayelekile ze-FR-4 sezishintshele cishe emavikini ayi-6-8, amamaki okulahlekelwa okuphakathi kanye nokuphansi afinyelela emavikini ayi-14-18, kanye namamaki akhethekile athuthukile afinyelela emavikini angaphezu kwama-20 uma kunikezwa, ngakho-ke i-core kanye ne-prepreg kufanele kuhlelwe ndawonye futhi kuqinisekiswe ngaphambi kokukhiqizwa.