Okwangoku, kukho iintlobo ezininzi ze-laminates ezinobhedu ezisetyenziswa ngokubanzi kwilizwe lam, kwaye iimpawu zazo zimi ngolu hlobo lulandelayo: iintlobo ze-laminates ezifakwe ubhedu, ulwazi lwe-laminates ezifakwe ngobhedu, kunye neendlela zokuhlela iilaminethi ezifakwe ubhedu.Ngokubanzi, ngokwezinto ezahlukeneyo zokuqinisa ibhodi, inokwahlulwa ibe ngamacandelo amahlanu: isiseko sephepha, isiseko selaphu leglasi yelaphu, isiseko esihlanganisiweyo (uthotho lweCEM), isiseko sebhodi esinemigangatho emininzi kunye nesiseko sezinto ezikhethekileyo (i-ceramic, isiseko sentsimbi. isiseko, njl.).Ukuba ihlelwa ngokwe-resin adhesive esetyenziswe ebhodini, i-CCI esekelwe kwiphepha eliqhelekileyo.Kukho: i-phenolic resin (i-XPC, i-XxxPC, i-FR-1, i-FR-2, njl.), i-epoxy resin (FE-3), i-polyester resin kunye nezinye iintlobo.Isiseko selaphu leglasi eqhelekileyo ye-CCL ine-epoxy resin (FR-4, FR-5), okwangoku lolona hlobo lusetyenziswa kakhulu lwesiseko selaphu leglasi yeglasi.Ukongezelela, kukho ezinye ii-resin ezikhethekileyo (i-glass fiber cloth, i-polyamide fiber, i-faber non-woven, njl. njengezinto ezongezelelweyo): i-bismaleimide eguqulelwe i-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, njl. Ngokutsho kwe-CCL ye-flame retardant, inokwahlulwa ibe ziindidi ezimbini zeebhodi: i-flame retardant (UL94-VO, UL94-V1) kunye ne-non- i-flame retardant (UL94-HB) .Kunyaka omnye okanye emibini edlulileyo, ngokugxininisa ngakumbi ekukhuselweni kwendalo, uhlobo olutsha lwe-CCL olungenayo i-bromine luye lwahlukana ne-CCL ye-flame-retardant, enokuthiwa "i-flame eluhlaza. -i-CCL esemva”.Ngophuhliso olukhawulezayo lwetekhnoloji yemveliso yombane, kukho iimfuno zokusebenza eziphezulu ze-cCL.Ngoko ke, ukusuka kuhlelo lokusebenza lweCCL, yahlulwe kwi-CCL yokusebenza ngokubanzi, i-CCL ephantsi ye-dielectric engaguqukiyo, i-CCL yokumelana nobushushu obuphezulu (ngokubanzi i-L yebhodi ingaphezulu kwe-150 ° C), kunye ne-CCL ephantsi yokwandisa i-thermal (esetyenziswa ngokubanzi kwi-CCL). ukupakisha substrates) ) kunye nezinye iintlobo.Ngophuhliso kunye nenkqubela phambili eqhubekayo yobuchwepheshe be-elektroniki, iimfuno ezintsha zihlala zibekwe phambili kwizinto eziprintiweyo zebhodi engaphantsi, ngaloo ndlela kukhuthazwa uphuhliso oluqhubekayo lwemigangatho yobhedu ye-laminate.Okwangoku, imigangatho ephambili yezinto ze-substrate zilandelayo
① Umgangatho weSizwe: imigangatho yelizwe lam enxulumene nezixhobo ze-substrate ziquka i-GB/T4721-47221992 kunye ne-GB4723-4725-1992.Umgangatho we-copper clad laminates eTaiwan, i-China yi-standard ye-CNS, eyaqulunqwa ngokusekelwe kumgangatho we-JIS yaseJapan kwaye yasungulwa ngo-1983.
② Imigangatho yamazwe ngamazwe: umgangatho we-JIS yaseJapan, i-American ASTM, i-NEMA, i-MIL, i-IPc, i-ANSI, i-UL standard, i-Bs standard yaseBritani, i-DIN yesiJamani, i-VDE standard, i-French NFC, i-UTE standard, i-Canadian CSA standard, i-Australian standard AS, umgangatho we-FOCT eyayisakuba yiSoviet Union, umgangatho we-IEC wamazwe ngamazwe, njl.njl.;ababoneleli bezinto zoyilo zePCB, eziqhelekileyo nezisetyenziswa ngokuqhelekileyo zezi: Shengyi\Kingboard\International, njl.
PCB ibhodi yesekethe impahla isingeniso: ngokwenqanaba brand umgangatho ukusuka ezantsi ukuya phezulu, yahlulwe ngolu hlobo lulandelayo: 94HB-94VO-CEM-1-CEM-3-FR-4
Iiparamitha ezineenkcukacha kunye nokusetyenziswa zimi ngolu hlobo lulandelayo:
94HB
: Ikhadibhodi eqhelekileyo, ayifuni umlilo (eyona nto iphantsi kakhulu, i-die punching, ayinakusetyenziswa njengebhodi yamandla)
I-94V0: ikhadibhodi ebuyisela idangatye (ukufa ngenqindi)
22F
: Icala elinye elinesiqingatha seglasi yefayibha ibhodi (fa ngenqindi)
CEM-1
: Ibhodi ye-fiberglass enecala elinye (kufuneka yonjwe ngekhompyuter, ingabethelwa)
CEM-3
: Ibhodi ye-semi-fiberglass enamacala amabini (ngaphandle kwekhadibhodi enamacala amabini, eyona nto isezantsi-yeyona nto isezantsi kwiiphaneli ezimacala amabini. Iiphaneli ezilula ezinamacala amabini zingasebenzisa le mathiriyeli, eyi-5 ~ 10 yuan/square meter inexabiso eliphantsi kune FR-4)
FR-4:
Ibhodi ye-fiberglass enamacala amabini
1. Ukuhlelwa kweempawu ze-flame retardant zinokwahlulwa zibe ziindidi ezine: 94VO-V-1-V-2-94HB
2. Prepreg: 1080=0.0712mm, 2116=0.1143mm, 7628=0.1778mm
3. I-FR4 CEM-3 yonke imele iibhodi, i-fr4 yibhodi yefiber yeglasi, kunye ne-cem3 yi-substrate edibeneyo
4. I-halogen-free ibhekisela kwii-substrates ezingenayo i-halogens (izinto ezifana ne-fluorine, i-bromine, i-iodine, njl.), kuba i-bromine iya kuvelisa iigesi ezinobuthi xa zitshiswa, ezifunekayo ngokukhuselwa kwendalo.
5. I-Tg yiqondo lokushisa lokutshintsha kweglasi, eliyindawo yokunyibilika.
6. Ibhodi yesekethe kufuneka ibe yi-flame-resistant, ayikwazi ukutshisa kwiqondo lokushisa elithile, inokuthambisa kuphela.Iqondo lobushushu ngeli xesha libizwa ngokuba liqondo lobushushu beglasi (inqaku leTg), kwaye eli xabiso linxulumene nokuqina komgangatho webhodi yePCB.
Yintoni iTg ephezulu?Ibhodi yesekethe ye-PCB kunye neenzuzo zokusebenzisa i-Tg ephezulu ye-PCB: Xa ubushushu bebhodi yesekethe eprintiweyo ephezulu ye-Tg inyuka ukuya kumgubasi othile, i-substrate iya kutshintsha ukusuka "kwimeko yeglasi" ukuya kwi "rubber state", kwaye ubushushu ngeli xesha kuthiwa. ibhodi yeglasi yotshintsho lobushushu (Tg).Oko kukuthi, i-Tg lelona qondo lobushushu liphezulu (° C.) apho i-substrate ihlala iqinile.Oko kukuthi, izinto eziqhelekileyo ze-substrate ze-PCB ziya kuqhubeka zithomalalisa, zikhubazeke, zinyibilike kunye nezinye izinto phantsi kobushushu obuphezulu, kwaye kwangaxeshanye, kuya kubonisa ukuhla okubukhali kwiipropati zoomatshini kunye nombane, okuya kuchaphazela ubomi benkonzo. imveliso.Ngokubanzi, ibhodi ye-Tg yi-130 Ngaphezulu kwe-℃, i-Tg ephezulu iphezulu kune-170 ° C, kwaye i-Tg ephakathi ingaphezu kwe-150 ° C;ngokuqhelekileyo ibhodi eprintiweyo yePCB ene-Tg ≥ 170 ° C ibizwa ngokuba yibhodi eprintiweyo yeTg ephezulu;i-Tg ye-substrate iyanda, kunye nokumelana nobushushu kwebhodi eprintiweyo, Iimpawu ezinjengokumelana nokufuma, ukuxhathisa imichiza, kunye nokuzinza zonke ziphuculwe kwaye ziphuculwe.Ixabiso eliphezulu le-TG, bhetele ukumelana nokushisa kwebhodi, ngakumbi kwinkqubo yokukhokela, kukho izicelo ezininzi zeTg ephezulu;iTg ephezulu ibhekisa ekuxhathiseni ubushushu obuphezulu.Ngophuhliso olukhawulezayo lweshishini lombane, ngakumbi iimveliso ze-elektroniki ezimelwe ziikhompyuter, ziphuhlisa ukusebenza okuphezulu kunye nemigangatho emininzi ephezulu, efuna ukumelana nobushushu obuphezulu bezinto ezisezantsi zePCB njengento efunekayo.Ukuvela kunye nophuhliso lobuchwephesha obuphezulu obuphezulu obumelwe yi-SMT kunye ne-CMT buye benza i-PCB ngakumbi kwaye ingahlukani nenkxaso yokumelana nokushisa okuphezulu kwe-substrate ngokubhekiselele kwi-aperture encinci, umgca ococekileyo, kunye nokunciphisa.Ngoko ke, umahluko phakathi kwe-FR-4 jikelele kunye ne-Tg ephezulu: kwiqondo lokushisa eliphezulu, ngakumbi phantsi kobushushu emva kokufunxa ukufuma, amandla omatshini, ukuzinza kwe-dimensional, i-adhesiveness, i-absorption yamanzi, ukubola kwe-thermal, ukwanda kwe-thermal, njl. phakathi kweemeko ezimbini, kunye neemveliso eziphezulu ze-Tg ngokucacileyo zingcono kunezixhobo eziqhelekileyo zebhodi yesekethe ye-PCB.
Ixesha lokuposa: Apr-26-2023