Ngwa Sapphire Electrode na Wafer C-plane LED Substrates

Nkọwa dị mkpirikpi:

Dabere na nkwalite teknụzụ sapphire na-aga n'ihu na mgbasawanye ngwa ngwa nke ahịa ngwa, 4 inch na 6 inch substrate wafers ga-enwetakwu nke ụlọ ọrụ mgbawa n'ihi uru dị iche iche ha nwere na itinye n'ọrụ.

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Nkọwa ngwaahịa

Mkpado ngwaahịa

Nkọwapụta

Izugbe
Usoro ọgwụ	Al2O3
Ọdịdị kristal	Sistemụ hexagonal (hk o 1)
Akụkụ Cell akụkụ	a=4.758 Å,Å c=12.991 Å, c:a=2.730
Anụ ahụ
	Metric	Bekee (Imperial)
Njupụta	3.98g/cc	0.144 lb / n'ime 3
Isi ike	1525 - 2000 Knoop, 9 ọnwa	3700F
Ebe Na-agbaze	2310K (2040°C)
Nhazi
Ike ọdụdọ	275 MPa ruo 400 MPa	40,000 ruo 58,000 psi
Ike tensile na 20°C		58,000 psi (nhazi nkeji)
Ike tensile na 500°C		40,000 psi (nhazi nkeji)
Ike tensile na 1000°C	355 MPa	52,000 psi (nhazi nkeji)
Ike Flexural	480 MPa ruo 895 MPa	70,000 ruo 130,000 psi
Ike mkpakọ	2.0 GPA (nke kacha)	300,000 psi (nke kacha)

Sapphire dị ka ihe sekit sekit sekit

Wafer sapphire dị obere bụ nke mbụ gara nke ọma iji ihe mkpuchi mkpuchi nke etinyere silicon iji mepụta sekit agbakwunyere akpọrọ silicon on sapphire (SOS). Na mgbakwunye na ọmarịcha ihe mkpuchi ọkụ eletrik ya, sapphire nwere ihe nrụpụta ọkụ dị elu. CMOS ibe na sapphire dabara adaba maka ngwa redio dị elu (RF) dị ka ekwentị mkpanaaka, igwe redio nchekwa ọha na sistemụ nkwukọrịta satịlaịtị.

A na-ejikwa otu wafer sapphire kristal dị ka ihe na-emepụta ihe na ụlọ ọrụ semiconductor maka ngwaọrụ dabere na gallium nitride (GaN). Ojiji sapphire na-ebelata nke ukwuu n'ihi na ọ bụ ihe dịka 1/7 nke ọnụ ahịa germanium.GaN na sapphire na-ejikarị na-acha anụnụ anụnụ na-egbuke egbuke diodes (LEDs).

Jiri dị ka ihe windo

A na-ejikarị sapphire sịntetik (mgbe ụfọdụ a na-akpọ sapphire iko) dị ka ihe windo n'ihi na ọ na-egosipụta nke ọma n'etiti 150 nm (ultraviolet) na 5500 nm (infrared) nke ìhè (ntụpọ a na-ahụ anya sitere na 380 nm ruo 750 nm) ma nwee nnukwu nguzogide ntucha. Uru isi nke windo sapphire