Electrode Sapphire Substrate thiab Wafer C-plane LED Substrates
Specification
| GENERAL | ||
| Tshuaj 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 | |
| PHEM | ||
| Metric | Lus Askiv (Imperial) | |
| Qhov ntom | 3.98g / hli | 0.144 lb/in 3 |
| Hardness | 1525-2000 Knoop, 9 mhos | 3700 ° F |
| Melting Point | 2310 K (2040 ° C) | |
| SRUCTURAL | ||
| Tensile zog | 275 MPa rau 400 MPa | 40,000 rau 58,000 psi |
| Tensile zog ntawm 20 ° C | 58,000 psi (tsim min.) | |
| Tensile zog ntawm 500 ° C | 40,000 psi (tsim min.) | |
| Tensile zog ntawm 1000 ° C | 355 MPa rau | 52,000 psi (tsim min.) |
| Flexural zog | 480 MPa rau 895 MPa | 70,000 rau 130,000 psi |
| Compression zog | 2.0 GPa (qhov kawg) | 300,000 psi (qhov kawg) |
Sapphire raws li ib tug semiconductor Circuit Court substrate
Nyias sapphire wafers yog thawj zaug siv tau zoo ntawm cov khoom siv insulating uas silicon tau muab tso rau hauv kev sib xyaw ua ke hu ua silicon ntawm sapphire (SOS).Ntxiv rau nws cov khoom siv hluav taws xob zoo heev, sapphire muaj cov thermal conductivity.CMOS chips ntawm sapphire tshwj xeeb tshaj yog tsim rau cov xov tooj cua siv hluav taws xob ntau zaus (RF) xws li xov tooj ntawm tes, xov tooj cua kev nyab xeeb rau pej xeem thiab satellite kev sib txuas lus.
Ib leeg siv lead ua sapphire wafers kuj tseem siv los ua cov substrates hauv kev lag luam semiconductor rau kev loj hlob gallium nitride (GaN) raws li cov khoom siv.Kev siv sapphire txo cov nqi raws li nws yog kwv yees li 1/7th tus nqi ntawm germanium.GaN ntawm sapphire feem ntau yog siv hauv xiav lub teeb emitting diodes (LEDs).
Siv ua cov khoom siv qhov rais
Synthetic sapphire (qee zaum hu ua sapphire iav) feem ntau yog siv los ua cov khoom siv qhov rais vim tias nws yog pob tshab ntawm 150 nm (ultraviolet) thiab 5500 nm (infrared) wavelengths ntawm lub teeb (qhov pom spectrum li ntawm 380 nm txog 750 nm) thiab muaj kev tiv thaiv siab heev rau khawb.Cov txiaj ntsig tseem ceeb ntawm sapphire windows
suav nrog
Tsis tshua muaj dav optical kis bandwidth, los ntawm UV mus rau ze-infrared teeb
Muaj zog dua lwm yam khoom siv kho qhov muag lossis lub qhov rais iav
Kev tiv thaiv zoo heev rau khawb thiab puas (ntxuav hardness ntawm 9 ntawm Mohs nplai, thib ob tsuas yog pob zeb diamond thiab moissanite ntawm cov khoom ntuj).
Kub melting point (2030 ° C)
Daim duab qhia ntxaws
