Ma Electrode Sapphire Substrate ndi Wafer C-ndege Magawo a LED
Kufotokozera
| ZAMBIRI | ||
| 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 | |
| ZATHUPI | ||
| Metric | Chingerezi (Imperial) | |
| Kuchulukana | 3.98g/cc | 0.144 lb/mu3 |
| Kuuma | 1525 - 2000 Knoop, 9 mhos | 3700 ° F |
| Melting Point | 2310 K (2040° C) | |
| KANJIRA | ||
| Kulimba kwamakokedwe | 275 MPa mpaka 400 MPa | 40,000 mpaka 58,000 psi |
| Mphamvu ya Tensile pa 20 ° C | 58,000 psi (mapangidwe min.) | |
| Mphamvu ya Tensile pa 500 ° C | 40,000 psi (mapangidwe min.) | |
| Mphamvu ya Tensile pa 1000 ° C | 355 MPa | 52,000 psi (mapangidwe min.) |
| Mphamvu ya Flexural | 480 MPa mpaka 895 MPa | 70,000 mpaka 130,000 psi |
| Compression Mphamvu | 2.0 GPA (pomaliza) | 300,000 psi (pomaliza) |
Sapphire ngati gawo lapansi la semiconductor
Zophika zopyapyala za safiro zinali njira yoyamba yogwiritsira ntchito bwino kagawo kakang'ono kotsekera komwe silicon idayikidwapo kuti apange mabwalo ophatikizika otchedwa silicon pa safiro (SOS).Kuphatikiza pa zinthu zabwino kwambiri zotchinjiriza magetsi, safiro imakhala ndi ma conductivity apamwamba amafuta. CMOS chips pa safiro ndizoyenera kwambiri kugwiritsa ntchito ma radio frequency (RF) amphamvu kwambiri monga mafoni am'manja, ma wayilesi oteteza chitetezo cha anthu ndi njira zolumikizirana za satellite.
Zophika za safiro limodzi za safiro zimagwiritsidwanso ntchito ngati magawo am'magawo a semiconductor pokulitsa zida za gallium nitride (GaN).Kugwiritsa ntchito safiro kumachepetsa kwambiri ndalama chifukwa ndi pafupifupi 1/7th mtengo wa germanium.GaN pa safiro amagwiritsidwa ntchito kwambiri mu blue light emitting diodes (LEDs).
Gwiritsani ntchito ngati zenera zakuthupi
Sapphire yopangidwa (nthawi zina amatchedwa galasi la safiro) nthawi zambiri imagwiritsidwa ntchito ngati zenera chifukwa imawonekera kwambiri pakati pa 150 nm (ultraviolet) ndi 5500 nm (infrared) wavelengths wa kuwala (mawonekedwe owoneka bwino amachokera pafupifupi 380 nm mpaka 750 nm) ndipo ali ndi kukana kwambiri kukanda.Ubwino waukulu wa mawindo a safiro
Phatikizanipo
Chiwopsezo chofalikira kwambiri cha bandwidth, kuchokera ku UV kupita ku kuwala kwapafupi ndi infrared
Zamphamvu kuposa zida zina zowoneka bwino kapena mawindo agalasi
Kusamva kukwapula ndi ma abrasion (kulimba kwa mineral 9 pamlingo wa Mohs, wachiwiri kwa diamondi ndi moissanite pakati pa zinthu zachilengedwe)
Malo osungunuka kwambiri (2030 ° C)
Chithunzi chatsatanetsatane
