Conductive adhesive ke sekhomaretsi se ikhethileng, haholo-holo se entsoe ka resin le li-conductive filler (joalo ka silevera, khauta, koporo, nickel, tin le alloys, carbon powder, graphite, joalo-joalo), e ka sebelisetsoang ho kopanya likaroloana tsa microelectronic le tlhahiso ea ho paka. lisebelisoa tsa lisebelisoa.

Ho na le mefuta e mengata ea likhomaretsi tsa conductive.Ho ea ka likaroloana tse fapaneng tsa conductive, li-adhesives conductive li ka aroloa ka tšepe (khauta, silevera, koporo, aluminium, zinki, tšepe, phofo ea nickel) e thehiloeng le carbon-based conductive adhesives.Har'a li-adhesive tse ka holimo, sekhomaretsi sa conductive se entsoeng ka phofo ea silevera se na le conductivity e ntle haholo, sekhomaretsi le botsitso ba lik'hemik'hale, se ke ke sa e-ba le oxidized ka har'a sekhomaretsi, 'me lebelo la oxidation moeeng le lona le lieha haholo le haeba le na le oxidized. oxide e entsoeng ka silevera e ntse e na le conductivity e ntle.Ka hona, 'marakeng, haholo-holo lisebelisoa tsa motlakase tse nang le litlhoko tse phahameng tsa ho tšepahala, li-adhesives tse nang le phofo ea silevera e le li-fillers tsa conductive ke tsona tse sebelisoang ka ho fetisisa.Khethong ea matrix resin, epoxy resin e fetohile khetho ea pele ka lebaka la litaba tsa eona tse phahameng tsa lihlopha tse sebetsang, matla a holimo a momahano, ho khomarela hantle, thepa e ntle ea mochini, le thepa e ntle ea ho kopanya.

Nengphofo ea sileverae kenyelelitsoe ho sekhomaretsi sa epoxy e le setlolo sa conductive, mochine oa eona oa conductive ke ho kopana pakeng tsa li-powders tsa silevera.Pele sekhomaretsi sa conductive se phekoloa 'me se omisitsoe, phofo ea silevera ka sekhomaretsi sa epoxy e teng ka boithaopo 'me ha e bontše ho kopana ho tsoelang pele, empa e le boemong bo sa tsitsang le bo sireletsang.Ka mor'a ho phekola le ho omisa, ka lebaka la ho phekoloa ha tsamaiso, li-powders tsa silevera li kopantsoe ho e mong ka sebopeho sa ketane ho etsa marang-rang a conductive, a bontšang conductivity.Ka mor'a ho eketsa phofo ea silevera ho sekhomaretsi sa epoxy ka ts'ebetso e ntle (palo ea moemeli ea toughening le moemeli oa phekolo ke 10% le 7% ea boima ba epoxy resin, ka ho latellana), ts'ebetso e lekoa ka mor'a ho phekoloa.Ho ea ka lintlha tsa liteko, ha chelete e tlatsoang ea silevera ka sekhomaretsi sa conductive e ntse e eketseha, resistivity ea molumo e fokotseha haholo.Sena ke hobane ha lihlahisoa tsa silevera tsa phofo li le nyane haholo, palo ea resin tsamaisong e feta ea phofo ea conductive filler silevera, 'me phofo ea silevera e thata ho kopana le ho theha marang-rang a sebetsang hantle, kahoo e bontša khanyetso e phahameng. .Ka keketseho ea palo ea ho tlatsa phofo ea silevera, ho fokotseha ha resin ho eketsa ho kopana ha phofo ea silevera, e leng molemo ho thehoeng ha marang-rang a conductive le ho fokotsa ho hanyetsa molumo.Ha palo ea ho tlatsa e le 80%, molumo oa resistivity ke 0.9 × 10-4Ω•cm, e nang le conductivity e ntle, FYI.

Liphoofolo tsa sileverae nang le boholo bo feto-fetohang (ho tloha ho 20nm-10um), libopeho tse fapaneng (tse pota-potileng, tse haufi le spherical, flake) le tšebeletso e hlophisitsoeng bakeng sa boima ba 'mele, SSA, joalo-joalo.

Bakeng sa lintlha tse ling, ka kopo u se ke oa qeaqea ho iteanya le rona.

 


Nako ea poso: Sep-17-2021

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