Electrode Sapphire Substrate uye Wafer C-ndege LED Substrates

Tsanangudzo Pfupi:

Zvichienderana nekuenderera mberi kwekusimudzira tekinoroji yesafire uye kukurumidza kukurumidza kwemusika wekushandisa, 4 inch uye 6 inch substrate wafers ichave yakanyanya kugamuchirwa nemakambani makuru echipi nekuda kwekunakirwa kwavo mukushandiswa kwekugadzira.

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Tsanangudzo

GENERAL
Chemical Formula	Al2O3
Crystal Stucture	Hexagonal System (hk o 1)
Unit Cell Dimension	a=4.758 Å,Å c=12.991 Å, c:a=2.730
ZVEMUVIRI
	Metric	Chirungu (Imperial)
Density	3.98 g/cc	0.144 lb/mu3
Kuoma	1525 - 2000 Knoop, 9 mhos	3700° F
Melting Point	2310 K (2040° C)
ZVINHU
Tensile Simba	275 MPa kusvika 400 MPa	40,000 kusvika 58,000 psi
Tensile Simba pa20°C		58,000 psi (dhizaini min.)
Tensile Simba pa500°C		40,000 psi (dhizaini min.)
Tensile Simba pa1000°C	355 MPa	52,000 psi (dhizaini min.)
Flexural Stength	480 MPa kusvika 895 MPa	70,000 kusvika 130,000 psi
Kusimbisa Simba	2.0 GPA (yekupedzisira)	300,000 psi (yekupedzisira)

Safire semiconductor redunhu substrate

Micheka yesafire yakatetepa ndiyo yekutanga yakabudirira kushandiswa kweiyo insulating substrate pakaiswa silicon kugadzira maseketi akabatanidzwa anonzi silicon pasafire (SOS). Kuwedzera kune ayo akanakisa emagetsi ekudzivirira emagetsi, safire ine yakakwira thermal conductivity.CMOS machipisi pasafiri anonyanya kukodzera kune yakakwirira-simba redhiyo frequency (RF) application senge mbozhanhare, veruzhinji kuchengetedza bhendi redhiyo uye setiraiti yekutaurirana masisitimu.

Single crystal sapphire wafers anoshandiswawo se substrates mu semiconductor indasitiri yekukura gallium nitride (GaN) based zvishandiso. Kushandiswa kwesafiri kunoderedza zvakanyanya mari sezvo inenge 1/7 mutengo we germanium.GaN pasafire inowanzoshandiswa mublue light emitting diodes (LEDs).

Shandisa sechinhu chehwindo

Synthetic sapphire (dzimwe nguva inodaidzwa segirazi resafire) inowanzoshandiswa sechinhu chefafitera nekuti inoonekera zvakanyanya pakati pe150 nm (ultraviolet) uye 5500 nm (infrared) wavelengths yechiedza (iyo inooneka spectrum inotangira pa380 nm kusvika 750 nm) uye ine kukwirira kwakanyanya kwekukwenya. Mabhenefiti akakosha emahwindo esafire

Batanidza

Yakanyanya kupararira optical transmission bandwidth, kubva kuUV kusvika padhuze-infrared mwenje

Yakasimba kupfuura zvimwe zvinhu zve optical kana magirazi mahwindo

Yakanyanya inopokana nekukwenya uye abrasion (mineral kuoma kwe9 pachiyero cheMohs, yechipiri chete kune diamond uye moissanite pakati pezvakasikwa zvinhu)

Yakanyanya kunyungudika (2030°C)