I-Electrode Sapphire Substrate kunye ne-Wafer C-plane ye-LED Substrates
Inkcazo
NGOKUBANZI | ||
Ifomula yeMichiza | Al2O3 | |
Ubume beCrystal | Inkqubo eneHexagonal (hk o 1) | |
Ubungakanani beSeli yeyunithi | a=4.758 Å,Å c=12.991 Å, c:a=2.730 | |
EMZIMBENI | ||
Metric | IsiNgesi (Imperial) | |
Ukuxinana | 3.98 g/cc | 0.144 lb/in3 |
Ukuqina | 1525 - 2000 Knoop, 9 mhos | 3700°F |
Indawo yokunyibilika | 2310 K (2040° C) | |
UKWAKHIWA | ||
Tensile strength | 275 MPa ukuya 400 MPa | 40,000 ukuba 58,000 psi |
Amandla okuqina kwi-20°C | 58,000 psi (uyilo min.) | |
Amandla okuqina kwi-500° C | 40,000 psi (uyilo min.) | |
Amandla okuqina kwi-1000° C | 355 MPa | 52,000 psi (design min.) |
Ukuqina kweFlexural | 480 MPa ukuya kwi-895 MPa | 70,000 ukuba 130,000 psi |
Amandla oxinzelelo | 2.0 GPA (eyokugqibela) | 300,000 psi (ekugqibeleni) |
ISapphire njenge-semiconductor circuit substrate
Iziphaluka zesafire ezibhityileyo yayilusetyenziso lokuqala oluyimpumelelo lwe-substrate ekhuselayo apho isilicon yafakwa khona ukwenza iisekethe ezidityanisiweyo ezibizwa ngokuba yisilicon kwisafire (SOS). Ukongeza kwizinto ezigqwesileyo zokugquma umbane, isafire ine-conductivity ephezulu ye-thermal conductivity.Iitshiphusi ze-CMOS kwisafire zifaneleke ngokukodwa usetyenziso lwerediyo olunamandla aphezulu (RF) njengeefowuni eziphathwayo, iirediyo zokhuseleko loluntu kunye neenkqubo zonxibelelwano ngesathelayithi.
Iziphaluka zesafire zekristale enye zikwasetyenziswa njengeesubstrates kushishino lwesemiconductor ukukhulisa izixhobo ezisekwe kwigallium nitride (GaN). Ukusetyenziswa kwesafire kunciphisa kakhulu iindleko njengoko malunga ne-1/7 yeendleko zegermanium.I-GaN kwi-sapphire isetyenziswa ngokuqhelekileyo kwi-blue light emitting diodes (LEDs).
Sebenzisa njengemathiriyeli yefestile
Isafire yokwenziwa (ngamanye amaxesha ibizwa ngokuba yiglasi yesafire) isoloko isetyenziswa njengesixhobo sefestile kuba icace kakhulu phakathi kwe-150 nm (i-ultraviolet) kunye ne-5500 nm (infrared) ubude bamaza okukhanya (i-spectrum ebonakalayo isuka malunga ne-380 nm ukuya kwi-750 nm) kwaye unokumelana okuphezulu kakhulu nokukrwempa. Iinzuzo eziphambili zeefestile zesafire
Bandakanya
I-bandwidth ye-optical transmission ebanzi kakhulu, ukusuka kwi-UV ukuya kwisibane esikufutshane ne-infrared
Yomelele kunezinye izinto ezibonakalayo okanye iifestile zeglasi
Ixhathisa kakhulu ekukrweleni kunye ne-abrasion (ubunzima beeminerali be-9 kwisikali se-Mohs, okwesibini kuphela kwidayimane kunye ne-moissanite phakathi kwezinto zendalo)
Indawo yokunyibilika ephezulu kakhulu (2030°C)