Ajụjụ
Aluminom nitride, otu n'ime ihe ndị na-ekwe nkwa seramiiki
2022-10-25

Dika sekit jikọtara ọnụ aghọwo ụlọ ọrụ mba dị iche iche, ọtụtụ ihe semiconductor enyochala ma mepụta ya, na Aluminom Nitride doro anya bụ otu n'ime ihe semiconductor kachasị mma.

 

Njirimara Aluminium Nitride

Aluminom nitride (AlN) nwere njirimara nke ike dị elu, nnukwu resistivity olu, voltaji mkpuchi dị elu, ọnụọgụ nke mgbasawanye thermal, mma dakọtara na silicon, wdg. n'ọhịa nke seramiiki electronic substrates na nkwakọ ngwaahịa, nke na-eto eto na-adịbeghị anya, na arụmọrụ ya karịrị nke Alumina. Aluminom Nitride ceramics nwere ọmarịcha arụmọrụ n'ozuzu ya, dị mma maka mpempe semiconductor na ihe nkwakọba ihe, ma nwee ikike ngwa dị ukwuu na ụlọ ọrụ eletrọnịkị.

 

Ngwa nke aluminom nitride


1.  Ngwa ngwaọrụ Piezoelectric

Aluminom nitride nwere ihe mgbochi dị elu, nrụpụta okpomọkụ dị elu, yana ọnụ ọgụgụ dị ala nke mgbasawanye yiri silicon, nke bụ ihe dị mma maka ngwa eletrik dị elu na ọkụ eletrik.


2. Electronic nkwakọ ngwaahịa ihe

Beryllium Oxide, Alumina, Silicon Nitride, na Aluminom nitride bụ ụfọdụ ihe ndị a na-ejikarị eme ihe maka seramiiki.

N'ime ihe ndị dị na seramiiki dị ugbu a nke enwere ike iji dị ka ihe mkpụrụ, Silicon Nitride ceramics nwere ike mgbanwe kachasị elu, nkwụsi ike dị mma na ihe kachasị mma nke ihe seramiiki, ebe ọnụọgụ nke mgbasawanye ọkụ bụ nke kacha nta. Aluminom nitride ceramics nwere ihe nrụpụta ọkụ dị elu, ezigbo nguzogide ujo, ma ka nwere ezigbo ihe eji arụ ọrụ na oke okpomọkụ. Enwere ike ịsị na, site n'echiche nke arụmọrụ, Aluminom Nitride na Silicon Nitride bụ ihe kachasị mma ugbu a maka ihe eji eme ihe dị ka nkwakọ ngwaahịa eletrọnịkị, mana ha nwekwara nsogbu nkịtị: ọnụ ahịa ha dị elu.


3. Ngwa maka ihe ndị na-enye ọkụ

N'ihe gbasara nrụpụta ọrụ ntụgharị fotoelectric, aluminum nitride (AlN) nwere bandgap semiconductor band kacha obosara nke 6.2 eV, nke dị elu karịa semiconductor bandgap na-apụtaghị ìhè. AlN, dị ka ihe dị mkpa na-acha anụnụ anụnụ na ultraviolet ìhè-emitting ihe, na-eji na ultraviolet na miri ultraviolet ìhè-emitting diodes, ultraviolet laser diodes, ultraviolet detectors, wdg AlN na III-otu nitrides dị ka GaN na InN nwekwara ike na-etolite a na-aga n'ihu siri ike siri ike. ngwọta, na eriri ọdịiche nke ternary ya ma ọ bụ quaternary alloy nwere ike gbanwee na-aga n'ihu site na anya na-ahụ anya ruo omimi ultraviolet band, na-eme ka ọ bụrụ ihe dị mkpa na-arụ ọrụ ọkụ na-enye ọkụ.


4. Ngwa ka substrate ihe

AlN crystal bụ ezigbo mkpụrụ maka GaN, AlGaN, na AlN epitaxial ihe. E jiri ya tụnyere sapphire ma ọ bụ mkpụrụ SiC, AlN na GaN nwere ndakọrịta thermal kacha mma yana ndakọrịta kemịkalụ, na nrụgide dị n'etiti mkpụrụ na akwa epitaxial dị obere. Ya mere, kristal AlN dị ka GaN epitaxial substrates nwere ike ibelata njupụta ntụpọ dị na ngwaọrụ ahụ ma melite arụmọrụ ya, nke nwere atụmanya dị mma nke ngwa na nkwadebe nke okpomọkụ dị elu, nke dị elu, na ngwa eletrik dị elu. Na mgbakwunye, iji kristal AlN dị ka mkpụrụ ihe AlGaN epitaxial nwere ihe mejupụtara aluminom (Al) nwekwara ike belata njupụta nrụrụ dị na oyi akwa epitaxial nitride ma melite arụmọrụ na ndụ nke ngwaọrụ semiconductor nitride. Dabere na AlGaN, etinyela ihe nchọpụta kpuru ụbọchị dị elu nke ọma.


5. Ngwa na ceramik na ihe ntughari

Enwere ike iji aluminom nitride mee ihe na seramiiki ihe nhazi; kwadebere Aluminom Nitride ceramics nwere ọ bụghị naanị mma n'ibu Njirimara na flexural ike karịa Al2O3 na BeO ceramics, ma elu hardness na corrosion resistance.Iji okpomọkụ na ozize eguzogide nke AlN ceramics, ha nwere ike iji mee crucibles, Al evaporation efere, na akụkụ ndị ọzọ dị elu na-eguzogide corrosion. Tụkwasị na nke ahụ, ceramics AlN dị ọcha maka kristal transperent na-enweghị agba, nke nwere ezigbo ngwa anya, nwere ike iji mee ihe dị ka seramiki transperent maka ngwa eletrọnịkị ngwa anya na akụrụngwa maka windo infrared dị elu na mkpuchi na-eguzogide okpomọkụ.


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Akụkụ abụọ a na-ehicha aluminom nitride AlN ihe eji eme seramiiki sitere na WINTRUSTEK

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