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. I-CCL, inokwahlulwa ibe ziindidi ezimbini zeebhodi: i-flame retardant (UL94-VO, UL94-V1) kunye ne-non-flame retardant (UL94-HB) . uhlobo olutsha lwe-CCL olungenayo i-bromine yahlulwe kwi-CCL ye-flame-retardant, enokuthiwa "i-CCL ye-flame-retardant eluhlaza". 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 e-Taiwan, 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 yefiberglass 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 PCB ephezulu: Xa ubushushu bebhodi yesekethe eprintiweyo ephezulu ye-Tg inyuka ukuya kwinqanaba elithile, i-substrate iya kutshintsha ukusuka "kwimeko yeglasi" ukuya "kwimeko yerabha", kwaye iqondo lobushushu ngeli xesha libizwa. 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 iziganeko phantsi kobushushu obuphezulu, kwaye kwangaxeshanye, oko 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 nokushisa kwebhodi eprintiweyo, Iimpawu ezinjengokumelana nokufuma, ukuxhathisa imichiza, kunye nokuzinza zonke ziphuculwe kwaye ziphuculwe.Ixabiso eliphezulu le-TG, bhetele ukumelana nobushushu bebhodi, 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 obumelelwe yi-SMT kunye ne-CMT buye benza i-PCB ngakumbi kwaye ihluke ngakumbi kwinkxaso 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