Kedu ihe bụ Alumina Ceramic Substrates?

Ihe ndị e ji seramiiki alumina meebụ ihe seramiiki dị elu nke mejupụtara ya bụ aluminum oxide. A na-emepụta ha site na usoro sintering okpomọkụ dị elu. Dabere na ọdịnaya alumina, a na-ekewa ha n'ime ọkwa dị ala (75%-85% Al₂O₃), ọcha dị n'etiti (96% Al₂O₃), na ọkwa dị elu (≥99% Al₂O₃). N'ịbụ nke ejiri obere nhazi na ihe kemịkalụ kwụsiri ike mara, ihe ndị a na-egosipụta ike igwe pụrụ iche, iguzogide okpomọkụ dị elu, na mkpuchi eletriki. A na-ejikarị ha eme ihe dị ka ihe ntọala na eletrọniki, sistemụ ike, ụgbọelu, na ụlọ ọrụ ndị ọzọ dị elu.

Uru nke ihe ndị a na-akpọ Alumina Ceramic Substrates:

Mkpuchi Eletriki Pụrụ Iche
Site na nnukwu iguzogide (>10¹⁴ Ω·cm) na obere dielectric constant (8-10), seramiiki alumina na-ekewapụ ọkụ eletrik nke ọma, na-egbochi mkpụmkpụ sekit na gburugburu ugboro ugboro ma ọ bụ voltaji dị elu.

Oke Ọkụ Na-eduzi Ya
Ihe ndị dị n'ime ala nwere alumina 96% na-enye ike okpomọkụ nke 24-28 W/(m·K), na-eme ka okpomọkụ dị mma site na ihe eletrọnịkị iji gbochie oke okpomọkụ ma mee ka ndụ ngwaọrụ dịkwuo ogologo.

Ike Mekaniki Kachasị Elu
Ike flexural nke 300-400 MPa, yana nnukwu ike (ike Mohs 9) na iguzogide iyi, na-eme ka ọ dịgide ogologo oge n'ọnọdụ ọrụ siri ike.

Ike Kemịkalụ Siri Ike
N'ịbụ ndị na-eguzogide asịd, alkalis, oxidation, na mmiri mmiri, ihe ndị a na-emepụta alumina na-eme ka arụmọrụ ha sie ike ọbụlagodi na okpomọkụ dị elu (ruo 1600°C) ma ọ bụ na gburugburu ebe na-emebi emebi.

Nrụpụta nkenke
Nhazi nke ọma na-enye ohere ịdị ire ụtọ elu micron, na-emezu ihe achọrọ siri ike maka ngwa dịka nkwakọ ngwaahịa semiconductor.