Izinto ze-PCB Ezinezingqimba Eziphezulu Zamabhodi Ezinezingqimba Eziningi

I-PCB enezingqimba eziningi — izendlalelo ezingu-18, 24, 32 noma ngaphezulu — ingenye yemikhiqizo edinga kakhulu umakhi owakhayo, futhi izinto ezakhiwe ngazo zibalulekile ekutheni iyaphumelela yini. Isendlalelo ngasinye esengeziwe sandisa inani lezindawo zokuhlangana zezinto okumele zihlangane kahle, ukubekezelelana kokubhalisa okumele kubambe yonke inqwaba, kanye nenani le-laminate kanye ne-prepreg ibhodi eliyisebenzisayo. Ngo-2026, amabhodi anezingqimba eziningi nawo azizwa entuleka kakhulu kwezinto, ngoba avame ukudinga amamaki angavamile ngobuningi obukhulu. Lo mhlahlandlela uhlanganisa izidingo zezinto, ukukhetha okuyinhloko kanye nokulungiselela, izinselele ze-yield kanye ne-warpage, kanye namaqiniso okuphakelwa.

Izidingo Zezinto Zokwakha Imiklamo Enezingqimba Eziphezulu

Imiklamo yokubala okuphezulu ibeka izidingo zezinto ezibonakalayo ezingafakwanga ngamabhodi anezingqimba eziphansi. Ukuzinza kobukhulu kubaluleke kakhulu: izinto kumele zibambe ubukhulu bazo ngemijikelezo eminingi ye-lamination ukuze izici ezisezingqimbeni zangaphakathi zibhaliswe ngokunembile komunye nomunye kanye nasemigodini ebholiwe. I-Z-axis CTE kumele ilawulwe, ngoba lapho izingqimba eziningi futhi zijiyile ibhodi, ukwanda kwe-z-axis okuphelele kwenzeka ngokujikeleza kokushisa, okucindezela imigodi edlulayo. Ubukhulu be-dielectric obuhambisanayo kanye ne-Dk kulo lonke iphaneli kubalulekile ekulawuleni i-impedance ezingqimbeni eziningi zesignali. Futhi uhlelo lwe-resin kumele lubophe ngokuthembekile ungqimba-kuya-ungqimba ngaphandle kwezikhala noma ukuntuleka kwe-resin.

Kumabhodi anenani eliphezulu lezendlalelo eziphezulu — amaseva e-AI, amaswishi anesivinini esikhulu — lezi zidingo zihlangana nesidingo sokulahlekelwa okuphansi, zisunduzela umklamo emabangeni okulahlekelwa okuphakathi noma okulahlekelwa okuphansi ezingqimbeni zesiginali. Yingakho izidingo zezinto ezibalwe ngezinga eliphezulu kanye nezisebenza kahle zivame ukufana. Umongo wohlelo lokusebenza usezintweni ze- PCB zeseva ye-AI kanye nesizinda sokuklama kumhlahlandlela wethu wokuklama we-PCB onezendlalelo eziningi.

Ukukhetha Okuyinhloko Nokulungiselela Ngaphambi Kokukhulelwa

Ibhodi elinezingqimba eziningi lishintshanisa izinhlobo ezimbili zezinto: ama-core (i-laminate evuthwe ngokuphelele ngethusi ezinhlangothini zombili, ephethe isignali yangaphakathi kanye nezendlalelo zendiza) kanye ne-prepreg (indwangu yengilazi efakwe i-resin yesigaba B ebopha ama-core ndawonye ngesikhathi se-lamination futhi igeleza ukuze igcwalise phakathi kwezici). Ukukhetha kokubili ngendlela efanele kubalulekile. I-core isetha ukujiya kwe-dielectric kwesendlalelo sangaphakathi kanye nokungaguquguquki kwezingqimba zesignali ezithwalayo; i-prepreg isetha ukujiya kwesendlalelo sesibopho futhi kumele ibe nokuqukethwe kwe-resin okulungile ukuze kugeleze futhi kugcwalise ngaphandle kokulamba noma ukudala izikhala.

Kumabhodi anezingqimba eziphakeme ukukhetha kwe-prepreg kubaluleke kakhulu ngoba kunezingqimba eziningi ze-bond, futhi ngayinye iyithuba lephutha elingenalutho noma lokujiya elithinta i-impedance. Okuqukethwe kwe-resin kanye nezici zokugeleza kumele kuhambisane nobuningi besici sethusi ezingqimbeni eziseduze — izingqimba zangaphakathi zethusi eliphezulu zidinga i-prepreg ene-resin eyanele ukugcwalisa izikhala phakathi kwezici. I-core kanye ne-prepreg kufanele futhi zabelane ngesistimu yezinto ezihambisanayo ukuze zibophane ngokuthembekile. Izisekelo zisezintweni zethu ze-prepreg ezizinikele zomhlahlandlela we-PCB wezingqimba eziningi kanye nokubuka konke kokwakhiwa kwe-PCB laminate.

Izinto Okucatshangelwayo Ngesivuno Se-Lamination

Isivuno se-lamination siyehla njengoba inani lezingqimba likhuphuka, ngoba umjikelezo ngamunye we-lamination kanye nesixhumi ngasinye sezinto ezibonakalayo kunezela ithuba lesici - i-void, i-delamination, i-resin quiserancy, noma iphutha lokubhalisa - kanye namaphutha ahlangana kuyo yonke i-stack. Amabhodi anezingqimba eziphezulu avame ukudinga i-lamination elandelanayo (ukwakha ama-sub-assemblies emijikelezweni eminingi yokucindezela), okwandisa ukucindezeleka kokushisa nokomshini ezintweni kanye nenani lezinyathelo zokubhalisa okumele zigcinwe.

Ukukhetha izinto ezibonakalayo kuthinta ngqo lokhu kukhiqiza. Uhlelo lwe-resin olunephrofayili ye-lamination echazwe kahle, i-prepreg enokugeleza okufanele kobuningi besici, kanye ne-stack-up elinganiselayo konke kuphakamisa isivuno sokuqala. Ngokuphambene nalokho, i-prepreg engalingani kahle noma i-stack-up engalingani inciphisa isivuno, futhi ebhodini elibizayo elinezingqimba eziphakeme ukulahlekelwa yisivuno kuyabiza - kokubili ezintweni ezilahliwe (eziyivelakancane futhi ezibizayo ngo-2026) kanye nokwabiwa kwezinto ezilahlekile ezikukhiqizile. Ukunciphisa ukusetshenziswa kwe-premium-CCL nokususa imijikelezo ye-lamination engadingekile ngomklamo we-stack-up ohlakaniphile ngakho-ke kuthuthukisa kokubili izindleko kanye nesivuno. Isizinda se-lamination esilandelanayo siku- lamination elandelanayo ku-HDI PCB.

Ukuphatha i-Warpage kanye nokubhalisa

I-Warpage kanye nokubhalisa yizindlela ezimbili zokuhluleka kwemishini ezibangelwa ukubalwa kwezingqimba eziphakeme, futhi zombili ziqhutshwa ngokwengxenye yizinto ezibonakalayo. I-Warpage ibangelwa ukungalingani — ukusatshalaliswa kwethusi okungalingani, ukuhlanganiswa okungalingani, noma ukwanda kwezinto ezingalingani — okubangela ukuthi ibhodi ligobe njengoba liphola kusukela ekuboshweni. Izivikelo ziyi-symmetric stack-up (ukulinganisela ithusi kanye ne-dielectric mayelana nomugqa ophakathi), izinto ezihambisanayo phakathi kwe-stack, kanye nokupholisa okulawulwayo kwe-lamination. I-Warpage ibalulekile ngoba ibhodi eligobile libangela izinkinga zokuhlanganisa: ukubhaliswa okungekuhle kokunamathisela kwe-solder kanye namaphutha okubeka izingxenye.

Ukubhaliswa — ukuhambisana okunembile kwezici zesendlalelo sangaphakathi komunye nomunye kanye nemigodi ebholiwe — kuyawohloka njengoba isendlalelo ngasinye sinqwabelana ngoba isendlalelo ngasinye sengeza ukunyakaza kobukhulu ngesikhathi sokulayina. Izinto eziqinile ezinobukhulu obuphezulu kanye nokunyakaza okuphansi ngaphansi kokushisa kokulayina zibamba ukubhaliswa kangcono, yingakho ukuzinza kobukhulu kuyisidingo sezinto ezibonakalayo ezibalwe ngobuningi obuphezulu. Ukubhaliswa okuqinile nakho yikho okuvumela izindandatho ezincane ze-annular kanye nezici ezinhle kakhulu kumabhodi anobukhulu obuphezulu. Ukuqeqeshwa kokuklama kuhlanganiswe kumhlahlandlela wethu wokuklama we-HDI stack-up.

Izinselele Zesikhathi Sokuhola Izinto Ezibalulekile

Amabhodi anezingqimba eziphakeme abhekene nesithombe esinzima kakhulu sesikhathi sokuhola sezinto ezibonakalayo ngezizathu ezimbili. Okokuqala, avame ukudinga amamaki anqunyelwe kakhulu — amabhodi anezingqimba eziphezulu asebenzisa i-laminate elahlekelwa phakathi kuya kwelahlekelwa kancane, eqhuba amasonto ayi-14-18 e-M6/M7 kanye namasonto angama-20+ (ukwabiwa kuphela) e-M8/M9. Okwesibili, asebenzisa izinto eziningi kakhulu ebhodini ngalinye kunemiklamo enezingqimba eziphansi, ngakho-ke isidingo sokwabiwa sikhulu futhi kunzima ukusigcwalisa ngokunikezwa okunqunyelwe.

Ingxenye yokubala okuphezulu nayo ikhula ngokushesha — amabhodi amaningi anezingqimba eziningi (izendlalelo ezingu-18+) aphakathi kwezigaba ze-PCB ezikhula ngokushesha, eziqhutshwa amaseva e-AI kanye nokuxhumana okusheshayo — okwengeza ingcindezi yokufunwa kumamaki anqunyelwe kakhulu. Impendulo esebenzayo ifana neyezinye amabhodi anqunyelwe: bikezela kusenesikhathi, ufanelekele ibanga lesibili, hlela izibopho zezinto ezibonakalayo amasonto angu-16-20 kusengaphambili ngamamaki aphezulu, bese usebenzisa ama-hybrid stack-ups lapho umklamo uvumela khona ukukhawulela inani lamamaki angavamile kakhulu. Izindlela zokulawula isikhathi sokuhola zikumhlahlandlela wethu wesikhathi sokuhola we-PCB laminate kanye nomongo wokuhlinzekwa ku- PCB impahla yokuntuleka kwe-PCB.

Inqubo Yokubuyekeza I-Stack-Up Yomkhiqizi

Kwibhodi elibala kakhulu, isibuyekezo somkhiqizi sokuqongelela yisinyathelo esinqumayo sekhwalithi kanye nezindleko. Siqinisekisa izinto eziningana ngesikhathi esisodwa: ukuthi ukugoba kuzo zonke izingqimba ezilawulwayo zokugoba kubalwa nge-laminate Dk yangempela futhi kuyahlangabezana nokubekezelelana; ukuthi ukugoba kuyalingana nokulawula i-warpage; ukuthi i-core kanye nokukhetha kokulungiselela kubopha ngokuthembekile futhi kugcwalisa ubuningi besici; ukuthi uhlelo lokugoba (kufaka phakathi noma yikuphi ukugoba okulandelanayo) luqinile; nokuthi ibanga lezinto ezicacisiwe liyatholakala - noma linokulingana okufanelekile - ngokwesabelo samanje.

Ngenxa yokuthi amabhodi anezingqimba eziphakeme ayabiza futhi izinto azitholakali kalula, ukubamba inkinga yokuhlanganisa, ukuvimba, noma ukutholakala ngaphambi kokwenziwa kushibhile kakhulu kunokuyithola ku-lamination ehlulekile noma ebhodini elingabekezeleleki. I-Highleap Electronics inikeza izibalo zokuhlanganisa eziqinisekisiwe kusetshenziswa amanani e-laminate alinganisiwe e-Dk kanye nokubuyekezwa kokwenziwa kwangaphambili okuhlanganisa ukuvimba, ukulingana, ukubopha okuyinhloko/okwangaphambi kokwakhiwa, kanye nokutholakala kwezinto zokwakha zemiklamo yokubala okuphezulu.

Thola Isibuyekezo Sokuqoqwa Kwe-PCB Esinezingqimba Eziphezulu

I-Highleap Electronics yakha amabhodi amaningi anezingqimba eziningi kulezi zidingo. Bona amakhono ethu okuklama i-PCB enezingqimba eziningi , i-PCB enezingqimba ezingu-16 , kanye ne -PCB enezingqimba ezingu-28 , kanye nereferensi ye -PCB enezingqimba ezingu-12.

Imibuzo Evame Ukubuzwa Yezinto Ze-PCB Ezibalwe Ngezingqimba Eziphezulu

Yiziphi izakhiwo zezinto ezibaluleke kakhulu kumabhodi anezingqimba eziphakeme->

Ukuqina kobukhulu (ukubamba ukubhaliswa ngemijikelezo eminingi ye-lamination), i-z-axis CTE elawulwayo (yokuthembeka kwembobo), ukujiya kwe-dielectric okuhambisanayo kanye ne-Dk (yokulawula i-impedance), kanye nesistimu ye-resin ebopha ngokuthembeka ngaphandle kwezikhala noma ukuphelelwa yindlala.

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

I-core i-laminate eqinisiwe ngokuphelele enethusi ezinhlangothini zombili, ephethe isignali yangaphakathi kanye nezendlalelo zendiza. I-Prepreg iyindwangu yengilazi efakwe i-resin yesigaba se-B ehlanganisa ama-core ndawonye ngesikhathi se-lamination futhi igeleza ukuze igcwalise phakathi kwezici zethusi. Zombili kumele zikhethwe kahle ukuze zivikeleke futhi zibophane ngendlela ethembekile.

Kungani isivuno se-lamination sehla njengoba inani lezingqimba likhuphuka->

Umjikelezo ngamunye we-lamination kanye ne-interface yezinto ezibonakalayo kwengeza ithuba lokungabi nalutho, ukuhlukanisa, ukulahla i-resin, noma iphutha lokubhalisa, kanye nalokhu okuhlanganisiwe kuyo yonke i-stack. Amabhodi anezingqimba eziphezulu avame ukudinga i-lamination elandelanayo, ephindaphinda izinyathelo zokucindezeleka kanye nokubhalisa. Izinto ezihambisana kahle kanye ne-stack-up elinganisiwe kukhulisa isivuno.

Ilawulwa kanjani i-warpage kumabhodi anezingqimba eziphakeme->

Ngokunqwabelana okulinganayo okulinganisela ithusi kanye ne-dielectric phakathi nendawo, kuhlanganiswe izinto ezihlanganisiwe phakathi kwenqwanqwa, futhi kulawulwa ukupholisa kwe-lamination. I-Warpage ibalulekile ngoba ibhodi eligobile libangela ukubhaliswa kwe-solder-paste kanye nezinkinga zokubekwa kwezingxenye lapho kuhlanganiswa.

Kungani amabhodi anezinga eliphezulu ebhekene nezikhathi ezimbi kakhulu zokuhola izinto zokwakha->

Ngoba zivame ukudinga amamaki alinganiselwe kakhulu (amasonto ayi-14-18 e-M6/M7, isabelo samasonto angama-20+ - kuphela se-M8/M9) futhi zisebenzisa izinto eziningi kakhulu ebhodini ngalinye, okwenza isidingo sokwabiwa sibe sikhulu futhi kube nzima ukusigcwalisa. Ukubikezela kusenesikhathi nokufanelekela ibanga lesibili kubalulekile.