Njengamanje, kunezinhlobo eziningana zama-laminates ezigqoke zethusi ezisetshenziswa kabanzi ezweni lami, futhi izici zabo zimi kanje: izinhlobo zama-laminates agqoke ithusi, ulwazi lwama-laminates agqoke ithusi, nezindlela zokuhlukanisa ama-laminates agqoke ithusi.Ngokuvamile, ngokwezinto ezihlukahlukene zokuqinisa ebhodini, zingahlukaniswa zibe izigaba ezinhlanu: isisekelo sephepha, isisekelo sendwangu yengilazi yendwangu, isisekelo esiyinhlanganisela (uchungechunge lwe-CEM), isisekelo sebhodi esinezingqimba eziningi esine-laminated kanye nesisekelo sezinto ezikhethekile (i-ceramic, insimbi core. isisekelo, njll.).Uma ihlukaniswa ngokusho kwe-resin adhesive esetshenziswa ebhodini, i-CCI esekelwe ephepheni evamile.Kukhona: i-phenolic resin (XPC, XxxPC, FR-1, FR-2, njll.), i-epoxy resin (FE-3), i-polyester resin nezinye izinhlobo.Isisekelo sendwangu yengilazi yengilazi evamile ye-CCL ine-epoxy resin (FR-4, FR-5), okwamanje okuwuhlobo olusetshenziswa kakhulu lwesisekelo sendwangu yengilazi.Ngaphezu kwalokho, kunezinye izinhlaka ezikhethekile (indwangu ye-fiber yengilazi, i-polyamide fiber, indwangu engalukiwe, njll. njengezinto ezengeziwe): i-bismaleimide modified triazine resin (BT), i-polyimide resin (PI) , i-Diphenylene ether resin (PPO), i-maleic i-anhydride imine-styrene resin (MS), i-polycyanate resin, i-polyolefin resin, njll. Ngokokusebenza kwe-CCL kwe-flame retardant, ingahlukaniswa ngezinhlobo ezimbili zamabhodi: i-flame retardant (UL94-VO, UL94-V1) kanye ne-non- i-flame retardant (UL94-HB) .Onyakeni owodwa noma emibili edlule, ngokugcizelela okwengeziwe ekuvikelweni kwemvelo, uhlobo olusha lwe-CCL olungenayo i-bromine luhlukaniswe ne-CCL evimbela ilangabi, engabizwa ngokuthi "i-flame eluhlaza. -i-CCL elele".Ngokuthuthuka okusheshayo kobuchwepheshe bomkhiqizo we-elekthronikhi, kunezidingo zokusebenza eziphezulu ze-cCL.Ngakho-ke, kusukela ekuhlukaniseni ukusebenza kwe-CCL, ihlukaniswe yaba ukusebenza okujwayelekile kwe-CCL, i-CCL ephansi ye-dielectric engaguquki, i-CCL yokumelana nokushisa okuphezulu (ngokuvamile i-L yebhodi ingaphezu kuka-150 ° C), kanye ne-CCL yokwandisa okushisayo okuphansi (ngokuvamile isetshenziswa ama-packaging substrates) ) nezinye izinhlobo.Ngokuthuthuka kanye nenqubekelaphambili eqhubekayo yobuchwepheshe be-elekthronikhi, izidingo ezintsha zihlala zibekwe phambili ezintweni eziphrintiwe zebhodi le-substrate, ngaleyo ndlela kuthuthukiswe ukuthuthukiswa okuqhubekayo kwamazinga e-copper clad laminate.Njengamanje, izindinganiso eziyinhloko zezinto ze-substrate zimi kanje
① Izinga kazwelonke: amazinga kazwelonke ezwe lami ahlobene nezinto ze-substrate zihlanganisa i-GB/T4721-47221992 kanye ne-GB4723-4725-1992.Izinga le-copper clad laminates e-Taiwan, i-China iyindinganiso ye-CNS, eyakhiwe ngokusekelwe ku-Japanese JIS standard futhi yasungulwa ngo-1983.
② Amazinga omhlaba: Izinga le-JIS lase-Japan, i-American ASTM, i-NEMA, i-MIL, i-IPc, i-ANSI, i-UL ejwayelekile, indinganiso ye-British Bs, i-German DIN, i-VDE standard, i-French NFC, i-UTE ejwayelekile, indinganiso ye-Canadian CSA, indinganiso yase-Australia yase-AS, izinga le-FOCT i-Soviet Union yangaphambili, izinga le-IEC lamazwe ngamazwe, njll.;abahlinzeki bezinto zokwakha ze-PCB, ezivamile nezivame ukusetshenziswa yilezi: Shengyi\Kingboard\International, njll.
Isingeniso sebhodi lesifunda se-PCB: ngokwezinga lekhwalithi yomkhiqizo ukusuka phansi kuye phezulu, ihlukaniswe kanje: 94HB-94VO-CEM-1-CEM-3-FR-4
Imingcele enemininingwane kanye nokusetshenziswa imi kanje:
94HB
: Ikhadibhodi evamile, hhayi umlilo (impahla yebanga eliphansi kakhulu, i-die punching, ayikwazi ukusetshenziswa njengebhodi lamandla)
I-94V0: ikhadibhodi elibuyisela amalangabi (i-die punching)
22F
: Ibhodi ye-fiber yengilazi enohlangothi olulodwa (i-die punching)
I-CEM-1
: Ibhodi le-fiberglass elinohlangothi olulodwa (kumele libhojwe ngekhompyutha, lingashaywa)
CEM-3
: Ibhodi le-semi-fiberglass elinamacala amabili (ngaphandle kwekhadibhodi elinamacala amabili, eliwumsebenzi ophansi kakhulu wamaphaneli anezinhlangothi ezimbili. Amaphaneli alula anezinhlangothi ezimbili angasebenzisa le nto, eshibhe ngo-5~10 yuan/square mitha kune FR-4)
FR-4:
Ibhodi le-fiberglass elinezinhlangothi ezimbili
1. Ukuhlukaniswa kwezakhiwo ezivimbela amalangabi kungahlukaniswa ngezinhlobo ezine: 94VO-V-1-V-2-94HB
2. Prepreg: 1080=0.0712mm, 2116=0.1143mm, 7628=0.1778mm
3. I-FR4 CEM-3 yonke imelela amabhodi, i-fr4 iyibhodi le-fiber yengilazi, futhi i-cem3 iyingxenye engaphansi eyinhlanganisela
4. I-halogen-free ibhekisela kuma-substrates angenawo ama-halogen (izakhi ezifana ne-fluorine, i-bromine, i-iodine, njll.), ngoba i-bromine izokhiqiza amagesi anobuthi lapho ishiswa, okudingekayo ukuvikelwa kwemvelo.
5. I-Tg izinga lokushisa lokushintsha kwengilazi, okuyindawo yokuncibilika.
6. Ibhodi lesifunda kufanele likwazi ukumelana nelangabi, alikwazi ukushisa ekushiseni okuthile, lingathambisa kuphela.Iphuzu lokushisa ngalesi sikhathi libizwa ngokuthi izinga lokushisa lokushintsha kwengilazi (iphoyinti le-Tg), futhi leli nani lihlobene nokuqina kwebhodi le-PCB.
Iyini i-Tg ephezulu?Ibhodi lesifunda le-PCB kanye nezinzuzo zokusebenzisa i-Tg PCB ephezulu: Lapho izinga lokushisa eliphakeme le-Tg ephrintiwe ibhodi lesifunda likhuphuka lifinyelela embundwini othile, i-substrate izoshintsha isuka “kwisimo sengilazi” iye “kwisimo senjoloba”, futhi izinga lokushisa ngalesi sikhathi libizwa ngokuthi. izinga lokushisa lokushintsha ingilazi yebhodi (Tg).Okusho ukuthi, i-Tg izinga lokushisa eliphakeme kakhulu (° C.) lapho i-substrate ihlala iqinile.Okusho ukuthi, izinto ezijwayelekile ze-PCB substrate zizoqhubeka zithambe, ziwohloke, zincibilike nezinye izenzakalo ngaphansi kokushisa okuphezulu, futhi ngesikhathi esifanayo, kuzophinde kubonise ukwehla okubukhali kwezakhiwo zemishini nekagesi, okuzothinta impilo yesevisi umkhiqizo.Ngokuvamile, ibhodi le-Tg lingu-130 Ngenhla kuka-℃, i-Tg ephakeme ngokuvamile inkulu kuno-170°C, kanti i-Tg ephakathi ingaphezu kuka-150°C;ngokuvamile ibhodi eliphrintiwe le-PCB eline-Tg ≥ 170 ° C libizwa ngokuthi ibhodi eliphrintiwe le-Tg eliphezulu;i-Tg ye-substrate iyanda, futhi ukumelana nokushisa kwebhodi eliphrintiwe, Izici ezifana nokumelana nomswakama, ukumelana namakhemikhali, nokuzinza konke kuyathuthukiswa futhi kuthuthukisiwe.Ukuphakama kwe-TG value, kungcono ukumelana nokushisa kwebhodi, ikakhulukazi enqubweni engenamthofu, kunezinhlelo zokusebenza eziningi ze-Tg ephezulu;high Tg isho ukumelana nokushisa okuphezulu.Ngokuthuthuka okusheshayo kwemboni ye-elekthronikhi, ikakhulukazi imikhiqizo ye-elekthronikhi emelwe amakhompyutha, ithuthukela ekusebenzeni okuphezulu kanye nezendlalelo eziningi, okudinga ukumelana nokushisa okuphezulu kwezinto ze-PCB substrate njengemfuneko.Ukuvela nokuthuthukiswa kobuchwepheshe bokukhweza obuphezulu obumelelwe i-SMT ne-CMT kwenze i-PCB yahluka kakhulu kusukela ekusekelweni kokumelana nokushisa okuphezulu kwe-substrate ngokuya ngembobo encane, umugqa ocolekile, kanye nokuncipha.Ngakho-ke, umehluko phakathi kwe-FR-4 evamile ne-Tg ephezulu: ekushiseni okuphezulu, ikakhulukazi ngaphansi kokushisa ngemuva kokumuncwa komswakama, amandla emishini, ukuzinza kwe-dimensional, ukunamathela, ukumuncwa kwamanzi, ukubola okushisayo, ukunwetshwa okushisayo, njll. Kunomehluko. phakathi kwalezi zimo ezimbili, kanye nemikhiqizo ye-Tg ephezulu ngokusobala ingcono kunezinto ezivamile ze-PCB circuit board substrate.
Isikhathi sokuthumela: Apr-26-2023