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. Ngokusho kokusebenza kwe-flame retardant I-CCL, ingahlukaniswa ngezinhlobo ezimbili zamabhodi: i-flame retardant (UL94-VO, UL94-V1) kanye ne-non-flame retardant (UL94-HB).Onyakeni owodwa noma emibili edlule, ngokugcizelela okwengeziwe ekuvikelweni kwemvelo, a uhlobo olusha lwe-CCL olungenayo i-bromine luhlukanisiwe ne-CCL evimbela amalangabi, engabizwa ngokuthi "i-CCL e-green flame-retardant". 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 libhodwe 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 nezingqimba 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 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