Conductive silver paste nrog ntshiabconductive silver hmoovyog cov khoom siv hluav taws xob sib xyaw ua ke, uas yog cov khoom siv sib xyaw ua ke uas muaj cov hlau conductive nyiaj hmoov, puag cob, hnyav thiab cov khoom ntxiv.

Conductive silver slurry muaj cov khoom siv hluav taws xob zoo heev thiab kev ua haujlwm ruaj khov.Nws yog ib qho ntawm cov ntaub ntawv tseem ceeb hauv kev siv hluav taws xob thiab microelectronic technology.Nws yog dav siv nyob rau hauv integrated circuit quartz siv lead ua hluav taws xob Cheebtsam, tuab zaj duab xis Circuit Court nto los ua ke, instrumentation thiab lwm yam teb.

Conductive silver paste muab faib ua ob pawg:

1) Polymer silver conductive paste (ci los yog kho kom tsim tau ib zaj duab xis, nrog cov organic polymer raws li lub sij hawm sib txuas);

2) Sintered silver conductive muab tshuaj txhuam (sintering los tsim ib zaj duab xis, sintering kub tshaj 500 ℃, iav hmoov los yog oxide raws li lub tsev cog khoom theem)

Peb pawg ntawm cov nyiaj conductive muab tshuaj txhuam yuav tsum tau sib txawv ntawm cov nyiaj hais los yog kev sib xyaw ua ke ua cov khoom siv hluav taws xob, thiab txawm tias cov formulations sib txawv hauv txhua pawg yuav tsum muaj cov khoom sib txawv Ag raws li cov khoom siv ua haujlwm.Lub hom phiaj yog siv qhov tsawg kawg nkaus ntawm Ag hmoov nyob rau hauv ib tug tej yam mis nyuj los yog zaj duab xis tsim txheej txheem kom ua tau lub siab tshaj plaws kev siv ntawm Ag cov hluav taws xob thiab thermal conductivity, uas yog txuam nrog rau optimization ntawm zaj duab xis kev ua tau zoo thiab tus nqi.

Lub conductivity ntawm lub polymer yog tsuas yog txiav txim los ntawm cov conductive muab tub lim nyiaj hmoov, thiab tus nqi ntawm nws yog tus txiav txim yam tseem ceeb rau cov conductive kev ua tau zoo ntawm conductive nyiaj muab tshuaj txhuam.Kev cuam tshuam ntawm cov ntsiab lus ntawm cov hmoov hmoov ntawm lub ntim resistivity ntawm conductive silver paste tuaj yeem muab rau hauv ntau qhov kev sim, qhov xaus yog tias cov ntsiab lus ntawm cov nyiaj yog qhov zoo tshaj plaws nyob rau hauv thaj tsam ntawm 70% mus rau 80%.Cov txiaj ntsig kev sim ua raws li txoj cai.Qhov no yog vim hais tias thaum cov hmoov hmoov cov ntsiab lus me me, qhov tshwm sim ntawm cov khoom sib tiv tauj yog me me, thiab cov conductive network tsis yooj yim rau kev tsim;Thaum cov ntsiab lus loj dhau lawm, txawm hais tias qhov tshwm sim ntawm qhov kev sib cuag particle yog siab, cov ntsiab lus ntawm cov resin yog me me, thiab cov resin txuas cov nyiaj ntawm cov khoom yog nplaum, ua rau cov nyhuv kev sib txuas yog txo qis, yog li ntawd lub caij nyoog ntawm cov khoom sib cuag. txo qis, thiab cov conductive network kuj tsis zoo.Thaum cov ntsiab lus muab tub lim mus txog qhov tsim nyog, cov conductivity ntawm lub network yog qhov zoo tshaj plaws kom muaj qhov tsawg tshaj plaws resistivity thiab qhov loj tshaj plaws conductivity. 

Reference formula ib rau conductive silver paste:

Formula 1:

Conductive silver paste reference formula 2: conductive silver hmoov, E-44 epoxy resin, tetrahydrofuran, polyethylene glycol

Silver hmoov: 70% -80%

Epoxy resin: tetrahydrofuran yog 1: (2-3)

Epoxy resin: tus neeg sawv cev kho yog 1.0: (0.2 ~ 0.3)

Epoxy resin: polyethylene glycol yog 1.00: (0.05-0.10)

Cov kuab tshuaj kub kub: butyl anhydride acetate, diethylene glycol butyl ether acetate, diethylene glycol ethyl ether acetate, isophorone

Daim ntawv thov tseem ceeb ntawm qhov kub thiab txias curing conductive silver kua nplaum: nws muaj cov yam ntxwv ntawm qhov kub thiab txias, siab sib txuas lub zog, ruaj khov hluav taws xob kev ua tau zoo, thiab haum rau kev tshuaj ntsuam luam ntawv, hluav taws xob thiab thermal conductivity bonding nyob rau hauv ib txwm kub curing vuam zaus, xws li quartz muaju, infrared pyroelectric detectors, piezoelectric ceramics, potentiometers, flash tubes thiab shielding, Circuit Court kho, thiab lwm yam..

Qhov kev xaiv ntawm curing tus neeg sawv cev muaj feem xyuam rau qhov kub thiab txias ntawm epoxy resin.Polyamines thiab polythiamines feem ntau yog siv los kho ntawm qhov kub thiab txias, thaum cov kua qaub anhydrides thiab polyacids feem ntau yog siv los ua cov tshuaj tua kab mob rau qhov kub thiab txias.Cov tshuaj tua kab sib txawv muaj qhov sib txawv ntawm kev sib txuas sib txuas.

Kev siv tshuaj tua kab mob: yog tias tus nqi kho mob me me, lub sijhawm kho yuav raug ncua ntev lossis txawm tias nyuaj los kho;Yog tias tus neeg saib xyuas ntau dhau lawm, nws yuav cuam tshuam rau kev ua haujlwm ntawm cov nyiaj muab tshuaj txhuam thiab tsis haum rau kev ua haujlwm.

Nyob rau hauv epoxy thiab curing tus neeg sawv cev, yuav ua li cas xaiv ib tug haum diluent muaj feem xyuam rau lub tswv yim ntawm tus qauv tsim, xws li xav txog: nqi, dilution nyhuv, tsw, system hardness, system kub kuj, thiab lwm yam.

Diluent dosage: Yog tias cov tshuaj diluent tsawg dhau, qhov kev sib nqus ceev ntawm cov resin yuav qeeb thiab qhov muab tshuaj txhuam yuav zoo li khov heev;Yog hais tias lub diluent ntau npaum li cas loj heev, nws yuav tsis conducive rau nws volatilization thiab kho.