SiC silicon carbidengwaọrụ ahụ na-ezo aka na ngwaọrụ e ji silicon carbide mee dị ka ihe eji arụ ọrụ.
Dịka ihe ndị dị iche iche si dị, e kewara ya n'ime ngwaọrụ ike silicon carbide na-eduzi ya naọkara-mkpuchi silicon carbideNgwaọrụ RF.
Ụdị ngwaọrụ na ngwa nke silicon carbide bụ isi
Uru kachasị nke SiC karịrịIhe ndị dị na Sibụ:
SiC nwere oghere band ugboro atọ karịa Si, nke nwere ike ibelata ntapu mmiri ma mee ka nnabata okpomọkụ dịkwuo elu.
SiC nwere ike okpukpu iri nke ike ubi mgbawa nke Si, nwere ike imeziwanye njupụta ugbu a, ugboro ọrụ, iguzogide ikike voltaji ma belata mfu gbanyụọ, nke dabara adaba maka ngwa voltaji dị elu.
SiC nwere ọsọ ọsọ nke electron saturation okpukpu abụọ karịa Si, yabụ ọ nwere ike ịrụ ọrụ na ugboro dị elu.
SiC nwere okpukpu atọ nke ike okpomọkụ nke Si, arụmọrụ nke ike mkpofu okpomọkụ ka mma, nwere ike ịkwado njupụta ike dị elu ma belata ihe achọrọ maka ike mkpofu okpomọkụ, na-eme ka ngwaọrụ ahụ dị mfe.
Ihe na-eduzi ihe
Ihe na-eduzi ihe: Site n'iwepụ ihe ndị na-adịghị ọcha dị na kristal ahụ, ọkachasị ihe ndị na-adịghị ọcha dị n'ọkwa dị ala, iji nweta nnukwu iguzogide kristal ahụ.
Onye na-eduzi iheihe mkpuchi silicon carbideWafer SiC
Ngwaọrụ ike silicon carbide na-eduzi site na uto nke oyi akwa epitaxial silicon carbide na substrate conductive, a na-ahazi mpempe akwụkwọ epitaxial silicon carbide ọzọ, gụnyere mmepụta nke Schottky diodes, MOSFET, IGBT, wdg, nke a na-ejikarị eme ihe n'ụgbọala eletrik, mmepụta ike fotovoltaic, ụgbọ okporo ígwè, ebe data, chaja na akụrụngwa ndị ọzọ. Uru arụmọrụ bụ ndị a:
Njirimara nrụgide dị elu emelitere. Ike ọkụ eletrik nke silicon carbide karịrị ugboro iri nke silicon, nke na-eme ka nrụgide dị elu nke ngwaọrụ silicon carbide dị elu karịa nke ngwaọrụ silicon ndị yiri ya.
Njirimara okpomọkụ dị elu ka mma. Silicon carbide nwere ike ime ka okpomọkụ dị elu karịa silicon, nke na-eme ka mwepụ okpomọkụ nke ngwaọrụ ahụ dị mfe ma belata okpomọkụ ọrụ. Ike iguzogide okpomọkụ dị elu nwere ike ibute mmụba dị ukwuu na njupụta ike, ebe ọ na-ebelata ihe achọrọ na sistemụ oyi, ka ọdụ ahụ wee dị fechaa ma dị obere.
Ike dị ala. ① Ngwaọrụ silicon carbide nwere obere iguzogide na-adịghị ike ma nwee obere mfu na-adịghị ike; (2) Ọsọ mmiri nke ngwaọrụ silicon carbide belatara nke ukwuu karịa nke ngwaọrụ silicon, si otú a na-ebelata mfu ike; ③ Enweghị ihe na-eme ka ọ daa ugbu a na usoro mwepụ nke ngwaọrụ silicon carbide, mfu mgbanwe dịkwa ala, nke na-eme ka ugboro mgbanwe nke ngwa bara uru ka mma nke ukwuu.
Mkpụrụ SiC nke nwere ọkara mkpuchi: A na-eji N doping achịkwa iguzogide nke ngwaahịa ndị na-eduzi ihe nke ọma site na ịhazi mmekọrịta dị n'etiti ntinye nitrogen doping, ọnụego uto na iguzogide kristal.
Ihe dị ọcha nke ihe mkpuchi ihe mkpuchi dị elu
A na-eme ngwa RF nke dabere na carbon silicon nke e ji ọkara kpuchie site n'ịkụnye gallium nitride epitaxial oyi akwa na silicon carbide nke e ji ọkara kpuchie iji kwadebe mpempe akwụkwọ epitaxial silicon nitride, gụnyere HEMT na ngwaọrụ RF gallium nitride ndị ọzọ, nke a na-ejikarị eme ihe na nkwukọrịta 5G, nkwukọrịta ụgbọ ala, ngwa nchekwa, nnyefe data, na ikuku.
Oke ọsọ elektrọn jupụtara nke ihe silicon carbide na gallium nitride bụ okpukpu 2.0 na 2.5 nke silicon n'otu n'otu, yabụ ugboro ọrụ nke ngwaọrụ silicon carbide na gallium nitride karịrị nke ngwaọrụ silicon ọdịnala. Agbanyeghị, ihe gallium nitride nwere ọghọm nke iguzogide okpomọkụ adịghị mma, ebe silicon carbide nwere ezigbo iguzogide okpomọkụ na njikwa okpomọkụ, nke nwere ike imezu oke iguzogide okpomọkụ nke ngwaọrụ gallium nitride, yabụ ụlọ ọrụ ahụ na-ewere silicon carbide ọkara-insulated dị ka substrate, a na-akụkwa oyi akwa gan epitaxial na silicon carbide substrate iji mepụta ngwaọrụ RF.
Ọ bụrụ na enwere mmebi iwu, hichapụ kọntaktị
Oge ozi: Julaị-16-2024