Izinto Eziyisisekelo ze PCB

Enziwa kanjani ama-laminates e-clad evamile enziwe? Ngokuvamile, i-laminate ethusiwe ngethusi yenziwa ngezinto eziqinisiwe (ingilazi yefayibha yendwangu, ingilazi izwakala, iphepha le-fiber elikhulelweyo, njll.), Lifakwe i-resin ingcina, yomisiwe, isikiwe yafakwa emgqonyeni ongenalutho, yabe isimbozwa ngocwecwe lwethusi, ipuleti lensimbi njengesikhunta , futhi yakhiwa ngokushisa okuphezulu nokucindezela okuphezulu emshinini oshisayo

Ukugqoka ama-laminates

Yiziphi izinhlobo zamalaminethe agqokiwe ethusi angahlukaniswa ngokuqina nokuqina kwepuleti nezinto ezahlukahlukene zokuqinisa? Ngokuya ngokuqina nokuguquguquka kwepuleti, ingahlukaniswa ibe yithusi eqinile egqoke i-laminate kanye nezimo zethusi ezigqoke i-laminate. Ngokuya ngezinto ezihlukile zokuqinisa, zingahlukaniswa ngezigaba ezine: amaphepha asuselwe, indwangu yengilazi isuselwe, isisekelo esiyinhlanganisela (uchungechunge lwe-CEM, njll.) Nezinto ezikhethekile ezisuselwe (ceramic, metal based, njll.). 3. Chaza kafushane ukubaluleka kwe-GB / t4721-92 kazwelonke ejwayelekile.

Copper

Incwadi yokuqala yemodeli yomkhiqizo, u-C, isho ucwecwe olugqokwe ngethusi.

Uhlamvu lwesibili nolwesithathu lukhombisa i-resin esetshenziselwe i-substrate;

Izinhlamvu zesine nezesihlanu zibonisa okokuqinisa okusetshenziselwa izinto eziyisisekelo; Ekupheleni kwencwadi, izinombolo ezimbili zixhunywe ngomugqa omfishane ovundlile ukumela inombolo yomkhiqizo yohlobo olufanayo kepha ukusebenza okuhlukile.

4. Zisho ukuthini lezi zifinyezo ezilandelayo? I-JIS, ASTM, NEMA, mil, IPC, ANSI, IEC, BS amazinga ezempi <br /> IPC American circuit interconnection and Packaging Association standards <br /> ANSI American National Standards Association standards UL American Insurance Association laboratory standards <br /> amazinga e-IEC International Electrotechnical Commission <br /> BS amazinga e-British Standards Association DIN German Izindinganiso ze-Standards Association VDE izindinganiso zikagesi zaseJalimane ezisezingeni le-CSA Canadian Standards Association njengezindinganiso ze-Australia Standards Institute

5. Chaza kafushane amazinga we-UL kanye nezindikimba zezitifiketi zekhwalithi nezokuphepha? I-UL kungukuqala kwamaLabhorathri e-Underwriters. I-UL ikhiphe imibhalo ejwayelekile yezokuphepha engama-6000. Amazinga aphathelene nezingubo zokugqoka zekhopha zethusi aqukethwe ku-u1746.

6. Yiziphi izigaba ezimbili eziyinhloko zocwecwe lwethusi ngokuya ngezindlela ezahlukene zokulungiselela? Babizwa kanjani kumazinga we-IPC? Ingahlukaniswa ngo-foil wethusi wekhalenda kanye nefoyile yethusi ye-electrolytic. Babizwa nge-class W ne-class E ngokulandelana kumazinga we-IPC

7. Chaza kafushane izici zokusebenza nezindlela zokuzilungiselela zocwecwe lwethusi oluhleliwe kanye nefoyile yethusi ye-electrolytic. Ucwecwe lwethusi olwenziwe ikhalenda lwenziwa ngokugoqa ipuleti lethusi ngokuphindaphindiwe. Njenge-foil ye-electrolytic yethusi, idinga ukwelashwa kokuqina ngemuva kokukhiqizwa kocwecwe loboya. Ukumelana okugoba kanye ne-coefficient elastic of calendered copper foil kuphakeme kune-elektrikhi ye-elektrikhi ye-elektroniki, ubumsulwa bethusi buphakeme kakhulu kunoboya we-elektroni we-elektroni, futhi indawo emangele iyashelela kunaleyo yocingo lwethusi lwe-electrolytic.

8. Chaza kafushane izakhiwo ezahlukahlukene zobuchwepheshe befoyili ye-electrolytic yethusi nethonya lazo kuzakhiwo zekhofi egqoke i-laminate? A. Ubukhulu. > B. Ukubukeka. C. Amandla eqine nokunwebeka. Ukunwebeka okuphansi namandla okuqina ekushiseni okuphezulu kuzoholela ekushintsheni kokuqina kobukhulu kanye nokuqina kwembali yabaqhubi, ukwehla kwekhwalithi yezimbobo zensimbi ku-PCB kanye nokwephuka kocwecwe lwethusi lapho usebenzisa i-PCB. D. Qeda amandla. Amandla we-peel we-LP, VLP ne-SLP foils foils ane-Coarseness ephansi kumabhodi aphrintiwe nakumabhodi we-multilayer anemigqa emihle angcono kunalawo amafreyili ejwayelekile wethusi (STD ne-HTZ). Ukumelana okusongekayo. Umehluko we-longitudinal nowe-transverse we-elektrikhi ye-elektrikhi ye-elektrikhi iphakeme kancanyana esiqondisweni esinqamulelayo kunasekuqondeni okude. F. Ubuso besimo. G. Ukuqina. > H. Ukumelana nokushisa okuphezulu kokushisa. Ngaphezu kwalezi zici eziyisishiyagalombili zobuchwepheshe ezisemqoka zensimbi yethusi, kukhona ubucwebe bensimbi yethusi, ukunamathela kukayinki we-UV, ikhwalithi yensimbi yethusi, i-coefficient ka-electroplating nombala wensimbi yethusi.

9. Chaza kafushane ukusebenza kwendwangu yengilazi yefayibha? Izinto zokusebenza eziyisisekelo zifaka phakathi: uhlobo lwe-warp ne-weft, ukuminyana kwabantu (inani le-warp ne-weft yarns), ubukhulu, isisindo endaweni yunithi ngayinye, ububanzi namandla okwephula (amandla we-tensile).

Ngokuya ngezinga le-NEMA, ngokuvamile amapulangwe-agqokiwe aboshwe ngephepha ahlukaniswe ngokwemisebenzi yawo. Yiziphi ezivamile? Izinhlobo ezijwayelekile zifaka: XPC, xxxpc, FR-10 (xpc-fr), FR-1 (xxxpc-fr), fr-2, njll.

11. Qhathanisa i-laminate yethusi esezingeni eliphelele elenziwe ngephepha ne-epoxy glass cloth based laminate-clad laminate? Umkhiqizo owenziwe ngephepha le-pulp yokhuni noma indwangu yengilazi njengengilazi yokuqinisa, efakwe i-resin, embozwe ngocwecwe lwethusi kolunye noma ezinhlangothini zombili futhi kucindezelwe okushisayo.