Substrate na Electrode Sapphire da Wafer C-plane LED Substrates
Ƙayyadewa
| JANARIYA | ||
| Tsarin Sinadarai | Al2O3 | |
| Tsarin Crystal | Tsarin Hexagonal (hk o 1) | |
| Girman Tantanin Naúrar | a = 4.758 Å, Å c=12.991 Å, c: a=2.730 | |
| JIKI | ||
| Ma'auni | Turanci (Daular Masar) | |
| Yawan yawa | 3.98 g/cc | 0.144 lb/in3 |
| Tauri | 1525 - 2000 Knoop, 9 mhos | 3700° Fahrenheit |
| Wurin narkewa | 2310 K (2040° C) | |
| Tsarin | ||
| Ƙarfin Taurin Kai | 275 MPa zuwa 400 MPa | 40,000 zuwa 58,000 psi |
| Ƙarfin Tashin Hankali a 20°C | 58,000 psi (ƙimar ƙira) | |
| Ƙarfin Tashin Hankali a 500° C | 40,000 psi (ƙimar ƙira) | |
| Ƙarfin Tashin Hankali a 1000° C | 355 MPa | 52,000 psi (ƙimar ƙira) |
| Ƙarfin Lankwasawa | 480 MPa zuwa 895 MPa | 70,000 zuwa 130,000 psi |
| Ƙarfin Matsi | 2.0 GPa (na ƙarshe) | 300,000 psi (na ƙarshe) |
Sapphire a matsayin substrate na da'irar semiconductor
Wafers ɗin sapphire masu sirara su ne farkon nasarar amfani da wani abu mai rufi wanda aka sanya silicon a kai don ƙera da'irori masu haɗawa da ake kira silicon akan sapphire (SOS). Baya ga kyawawan halayensa na rufi na lantarki, sapphire yana da babban ƙarfin lantarki. Chips ɗin CMOS akan sapphire sun dace musamman don aikace-aikacen mitar rediyo mai ƙarfi (RF) kamar wayoyin hannu, rediyon tsaro na jama'a da tsarin sadarwa na tauraron dan adam.
Ana kuma amfani da wafers ɗin sapphire guda ɗaya a matsayin substrates a masana'antar semiconductor don haɓaka na'urori masu tushen gallium nitride (GaN). Amfani da sapphire yana rage farashi sosai saboda kusan kashi 1/7 na farashin germanium ne. Ana amfani da GaN akan sapphire a cikin diodes masu fitar da haske shuɗi (LEDs).
Yi amfani da shi azaman kayan taga
Ana amfani da saffir mai roba (wani lokacin ana kiransa gilashin saffir) a matsayin kayan taga saboda yana da haske sosai tsakanin 150 nm (ultraviolet) da 5500 nm (infrared) raƙuman haske (bakan da ake gani yana daga kimanin 380 nm zuwa 750 nm) kuma yana da juriya sosai ga karce. Manyan fa'idodin tagogi masu launin shuɗi
A haɗa
Faɗin bandwidth na watsawa na gani mai faɗi sosai, daga UV zuwa hasken kusa-infrared
Ya fi sauran kayan gani ko tagogi gilashi ƙarfi
Yana da matuƙar juriya ga karcewa da gogewa (ƙarfin ma'adinai na 9 a sikelin Mohs, na biyu bayan lu'u-lu'u da moissanite a tsakanin abubuwan halitta)
Matsanancin narkewa sosai (2030°C)
Cikakken Zane
