Kodi Alumina Ceramic Substrates ndi Chiyani?

Ma substrates a alumina ceramicNdi zipangizo zadothi zogwira ntchito kwambiri zomwe zimapangidwa makamaka ndi aluminiyamu oxide. Nthawi zambiri zimapangidwa pogwiritsa ntchito njira zoyeretsera kutentha kwambiri. Kutengera kuchuluka kwa alumina, zimagawidwa m'magulu a low-purity (75%-85% Al₂O₃), medium-purity (96% Al₂O₃), ndi high-purity (≥99% Al₂O₃). Popeza zimakhala ndi kapangidwe kakang'ono komanso mankhwala okhazikika, zinthuzi zimakhala ndi mphamvu yamphamvu kwambiri yamakina, kukana kutentha kwambiri, komanso kutchinjiriza magetsi. Zimagwiritsidwa ntchito kwambiri ngati zinthu zoyambira zamagetsi, makina amphamvu, ndege, ndi mafakitale ena apamwamba.

Ubwino wa Alumina Ceramic Substrates:

Kuteteza Magetsi Kwapadera
Ndi mphamvu yolimba kwambiri (>10¹⁴ Ω·cm) komanso mphamvu yotsika ya dielectric (8-10), alumina ceramics imachotsa bwino mafunde amagetsi, zomwe zimaletsa kufupika kwa ma circuit m'malo okhala ndi ma frequency ambiri kapena ma voltage ambiri.

Kutentha Kwambiri
Ma substrate okhala ndi alumina 96% amapereka mphamvu yotenthetsera ya 24-28 W/(m·K), zomwe zimathandiza kuti kutentha kuchokere ku zipangizo zamagetsi kusamatenthe kwambiri komanso kutalikitsa moyo wa chipangizocho.

Mphamvu Zapamwamba Zamakina
Mphamvu yopindika ya 300-400 MPa, kuphatikiza kuuma kwambiri (kuuma kwa Mohs 9) ndi kukana kukalamba, kumatsimikizira kulimba mumikhalidwe yovuta yogwirira ntchito.

Kukhazikika Kwamphamvu kwa Mankhwala
Polimbana ndi ma acid, alkali, okosijeni, ndi chinyezi, zinthu za alumina zimasunga kukhazikika kwa magwiridwe antchito ngakhale kutentha kwambiri (mpaka 1600°C) kapena m'malo owononga.

Kupanga Zinthu Mwanzeru
Kukonza zinthu molondola kumathandiza kuti pamwamba pakhale posalala, kukwaniritsa zofunikira kwambiri pakugwiritsa ntchito monga ma CD a semiconductor.