I-Electrode Sapphire Substrate kanye ne-Wafer C-plane LED Substrates

Incazelo emfushane:

Ngokusekelwe ekuthuthukisweni okuqhubekayo kobuchwepheshe be-sapphire kanye nokwanda okusheshayo kwemakethe yesicelo, ama-wafer e-substrate angu-4 intshi kanye no-6 intshi azosetshenziswa kakhulu yizinkampani ezinkulu ze-chip ngenxa yezinzuzo zawo ezingokwemvelo ekusetshenzisweni kokukhiqiza.

Sithumelele i-imeyili

Izici

Imininingwane

JIKELELE
Ifomula Yamakhemikhali	I-Al2O3
Isakhiwo sekristalu	Uhlelo Lwesikwele (hk o 1)
Ubukhulu Beseli Leyunithi	a=4.758 Å,Å c=12.991 Å, c:a=2.730
OKUNGOKWEMZIMBA
	I-Metric	IsiNgisi (uMbuso)
Ubuningi	3.98 g/cc	0.144 lb/in3
Ubulukhuni	1525 - 2000 Knoop, 9 mhos	3700° F
Indawo Yokuncibilika	2310 K (2040° C)
ISAKHIWO
Amandla Okudonsa	275 MPa kuya ku-400 MPa	40,000 kuya ku-58,000 psi
Amandla Okudonsa ku-20° C		58,000 psi (ubuncane bomklamo)
Amandla Okudonsa ku-500° C		40,000 psi (ubuncane bomklamo)
Amandla Okudonsa ku-1000° C	355 MPa	52,000 psi (ubuncane bomklamo)
I-Flexural Stength	480 MPa kuya ku-895 MPa	70,000 kuya ku-130,000 psi
Amandla Okucindezela	2.0 GPa (esiphezulu)	300,000 psi (okuphelele)

I-Sapphire njenge-substrate yesekethe ye-semiconductor

Ama-wafer amancane e-sapphire ayewukusetshenziswa kokuqala okuphumelelayo kwe-substrate yokuvikela lapho i-silicon yafakwa khona ukwakha amasekethe ahlanganisiwe abizwa ngokuthi i-silicon on sapphire (SOS). Ngaphezu kwezakhiwo zayo ezinhle kakhulu zokuvikela ugesi, i-sapphire ine-conductivity ephezulu yokushisa. Ama-chips e-CMOS ku-sapphire afaneleka kakhulu ezinhlelweni zomsakazo onamandla aphezulu (RF) njengezingcingo eziphathwayo, imisakazo yebhendi yokuphepha komphakathi kanye nezinhlelo zokuxhumana zesathelayithi.

Ama-wafer e-sapphire angamakristalu angasetshenziswa njengezinto ezisetshenziswa embonini ye-semiconductor yokukhulisa amadivayisi asekelwe ku-gallium nitride (GaN). Ukusetshenziswa kwe-sapphire kunciphisa kakhulu izindleko njengoba cishe kuyi-1/7th yezindleko ze-germanium. I-GaN ku-sapphire ivame ukusetshenziswa kuma-diode akhipha ukukhanya okuluhlaza okwesibhakabhaka (ama-LED).

Sebenzisa njengezinto zefasitela

I-sapphire yokwenziwa (ngezinye izikhathi ebizwa ngokuthi ingilazi ye-sapphire) ivame ukusetshenziswa njengendwangu yefasitela ngoba ikhanya kakhulu phakathi kwama-wavelength angu-150 nm (ultraviolet) kanye nama-wavelength angu-5500 nm (infrared) okukhanya (i-spectrum ebonakalayo isukela cishe ku-380 nm kuya ku-750 nm) futhi inokumelana okukhulu kakhulu nokuklwebheka. Izinzuzo ezibalulekile zamafasitela e-sapphire

Faka

I-bandwidth yokudlulisa okubonakalayo ebanzi kakhulu, kusukela ku-UV kuya ekukhanyeni okuseduze kwe-infrared

Kuqine kunezinye izinto ezibonakalayo noma amafasitela engilazi

Imelana kakhulu nokuklwebheka nokuklwebheka (ubulukhuni bamaminerali obungu-9 esikalini sikaMohs, bulandela idayimane ne-moissanite kuphela phakathi kwezinto zemvelo)

Indawo yokuncibilika ephezulu kakhulu (2030°C)