Conductive Adhesive yog cov nplaum tshwj xeeb, feem ntau yog tsim los ntawm cov khoom siv thiab cov khoom siv hluav taws xob (xws li nyiaj, kub, tooj liab, npib tsib xee, tin thiab alloys, carbon hmoov, graphite, thiab lwm yam), uas tuaj yeem siv rau kev sib txuas hauv microelectronic Cheebtsam thiab ntim khoom. txheej txheem cov ntaub ntawv.

Muaj ntau hom conductive adhesives.Raws li cov khoom siv sib txawv, cov nplaum nplaum tuaj yeem muab faib ua hlau (kub, nyiaj, tooj liab, txhuas, zinc, hlau, nickel hmoov)-raws li thiab carbon-based conductive adhesives.Ntawm cov nplaum nplaum saum toj no, cov nplaum nplaum ua ke los ntawm cov hmoov hmoov muaj cov khoom siv zoo heev, nplaum thiab tshuaj lom neeg ruaj khov, nws yuav tsis tshua muaj oxidized hauv cov nplaum nplaum, thiab oxidation tus nqi hauv huab cua kuj qeeb heev txawm tias nws yog oxidized, generated silver oxide tseem muaj zoo conductivity.Yog li ntawd, nyob rau hauv kev ua lag luam, tshwj xeeb tshaj yog nyob rau hauv cov khoom siv hluav taws xob uas yuav tsum tau muaj kev ntseeg siab, conductive adhesives nrog nyiaj hmoov raws li conductive fillers yog feem ntau lug siv.Hauv kev xaiv ntawm matrix resin, epoxy resin tau dhau los ua thawj qhov kev xaiv vim nws cov ntsiab lus siab ntawm cov pab pawg muaj zog, siab cohesive zog, zoo adhesion, zoo heev mechanical zog, thiab zoo heev blending zog.

Thaum twghmoov nyiajyog ntxiv rau epoxy nplaum raws li ib tug conductive muab tub lim, nws conductive mechanism yog kev sib cuag ntawm cov hmoov nyiaj.Ua ntej cov nplaum nplaum yog kho thiab qhuav, cov hmoov nyiaj hauv epoxy nplaum muaj nyob ntawm nws tus kheej thiab tsis qhia kev sib cuag nrog ib leeg, tab sis nyob rau hauv lub xeev uas tsis yog conductive thiab insulating.Tom qab kho thiab ziab, raws li qhov tshwm sim ntawm kev kho ntawm lub cev, cov hmoov nyiaj tau txuas mus rau ib leeg hauv cov saw hlau los tsim ib lub network conductive, uas qhia txog kev siv hluav taws xob.Tom qab ntxiv cov hmoov nyiaj rau epoxy nplaum nrog kev ua tau zoo (tus nqi ntawm tus neeg sawv cev toughening thiab curing tus neeg sawv cev yog 10% thiab 7% ntawm epoxy resin loj, raws li), qhov kev ua tau zoo yog sim tom qab kho.Raws li kev sim cov ntaub ntawv, raws li cov nyiaj filling ntawm cov nyiaj nyob rau hauv conductive nplaum nce, lub ntim resistivity txo ho.Qhov no yog vim hais tias thaum cov hmoov hmoov cov ntsiab lus tsawg dhau lawm, tus nqi ntawm cov resin nyob rau hauv lub cev yog ntau ntau tshaj li cov conductive muab tub lim hmoov hmoov, thiab cov hmoov hmoov yog ib qho nyuaj rau kev sib cuag los tsim ib tug zoo conductive network, yog li qhia tau hais tias muaj kev tiv thaiv ntau dua. .Nrog rau qhov nce ntawm cov nyiaj hmoov filling tus nqi, qhov txo qis ntawm cov resin nce kev sib cuag ntawm cov hmoov nyiaj, uas yog qhov zoo rau kev tsim ntawm lub network conductive thiab txo qhov ntim resistivity.Thaum lub filling yog 80%, lub ntim resistivity yog 0.9 × 10-4Ω•cm, uas muaj zoo conductivity, FYI.

Nyiaj hmoovnrog adjustable particle loj (los ntawm 20nm-10um), cov duab sib txawv (spherical, ze-spherical, flake) thiab customized kev pab cuam rau ntom, SSA, thiab lwm yam.

Yog xav paub ntxiv, thov tsis txhob yig tiv tauj peb.