Sapphire Substrate
Tlhaloso
Sapphire (Al2O3) kristale e le 'ngoe ke sesebelisoa se setle sa mesebetsi e mengata.E na le khanyetso e phahameng ea mocheso, mocheso o motle oa mocheso, boima bo phahameng, phetiso ea infrared le botsitso bo botle ba lik'hemik'hale.E sebelisoa haholo mafapheng a mangata a indasteri, ts'ireletso ea naha le lipatlisiso tsa saense (joalo ka fensetere ea mocheso o phahameng oa mocheso).Ka nako e ts'oanang, e boetse ke mofuta oa lisebelisoa tse sebelisoang haholo tsa kristale e le 'ngoe.Ke karolo ea pele ea khetho ho indasteri ea hona joale e putsoa, violet, e tšoeu e emitting diode (LED) le blue laser (LD) (filimi ea gallium nitride e hloka ho ba epitaxial holim'a sapphire substrate pele), hape ke superconducting ea bohlokoa. substrate ea filimi.Ho phaella ho Y-system, La system le lifilimi tse ling tse phahameng tsa mocheso o phahameng, e ka boela ea sebelisoa ho hōlisa lifilimi tse ncha tse sebetsang tsa MgB2 (magnesium diboride) (hangata substrate e le 'ngoe ea kristale e tla senyeha ka lik'hemik'hale nakong ea ha ho etsoa MgB2. lifilimi).
Thepa
| Bohloeki ba Crystal | 99.99% |
| Melt Point (℃) | 2040 |
| Boima (g/cm3） | 3.98 |
| Hardness (Mho) | 9 |
| Katoloso ea Mocheso | 7.5 (x10-6/oC) |
| Mocheso o khethehileng | 0.10 (kcal /oC) |
| Thermal Conductivity | 46.06 @ 0oC 25.12 @ 100oC, 12.56 @ 400oC ( W/(mK) ) |
| Dielectric Constant | ~ 9.4 @300K ho Axis ~ 11.58@ 300K ho C axis |
| Tangent ea tahlehelo ho 10 GHz | <2x10-5ho Axis, <5 x10-5ho C axis |
Sapphire Substrate Tlhaloso
Sapphire substrate e bua ka thepa ea kristale e bonaletsang e entsoeng ka kristale e le 'ngoe ea aluminium oxide (Al2O3).Lentsoe "sapphire" le atisa ho sebelisoa ho hlalosa mefuta e sa tšoaneng ea majoe a corundum, ao hangata a nang le 'mala o moputsoa.Leha ho le joalo, mabapi le li-substrates, safire e bua ka kristale e hōlileng ka maiketsetso, e se nang 'mala, e hloekileng e sebelisoang mefuteng e sa tšoaneng.Mona ke lintlha tsa bohlokoa mabapi le li-sapphire substrates:
1. Sebopeho sa kristale: Sapphire e na le sebopeho sa kristale sa hexagonal moo liathomo tsa aluminium le liathomo tsa oksijene li hlophisitsoeng khafetsa.Ke ea tsamaiso ea kristale ea trigonal.
2. Boima bo phahameng: Sapphire ke e 'ngoe ea lisebelisoa tse thata ka ho fetisisa tse tsejoang, tse nang le boima ba Mohs ba 9. Sena se etsa hore e se ke ea haroha haholo le ho senya, e leng se tlatsetsang ho tšoarella ha eona le ho phela nako e telele ts'ebetsong.
3. Phatlalatso ea leseli: Sapphire e na le phetiso e babatsehang ea khanya, haholo-holo libakeng tse bonahalang le tse haufi le infrared.E ka fetisa leseli ho tloha ho hoo e ka bang 180 nm ho ea ho 5500 nm, e etsa hore e tšoanelehe bakeng sa mefuta e mengata ea lisebelisoa tsa optical le optoelectronic.
4. Lintho tse futhumatsang le tsa mechine: Sapphire e na le thepa e ntle ea mocheso le mochine, sebaka se phahameng sa ho qhibiliha, coefficient e tlaase ea ho atolosa mocheso, le conductivity e ntle ea mocheso.E khona ho mamella mocheso o phahameng, khatello ea mochine le ho palama libaesekele, ho etsa hore e loketse mocheso o phahameng le lisebelisoa tse phahameng tsa matla.
5. Ho tsitsa ha lik'hemik'hale: Sapphire e na le botsitso bo phahameng ba lik'hemik'hale 'me e khona ho hanyetsa boholo ba li-acids, alkalis le li-solvents tse phelang.Tšobotsi ena e tiisa hore e tšoarella le ho tšepahala libakeng tse sa tšoaneng tse thata.
6. Lintho tsa motlakase tsa motlakase: Sapphire ke insulator e babatsehang ea motlakase, e leng molemo bakeng sa lits'ebetso tse hlokang ho itšehla thajana kapa ho pata motlakase.
7. Kopo: Li-substrates tsa Sapphire li sebelisoa haholo ho optoelectronics, semiconductors, light-emitting diode, laser diode, lifensetere tsa optical, likristale tsa ho shebella le lipatlisiso tsa saense.
Li-substrates tsa Sapphire li bohlokoa haholo bakeng sa motsoako oa tsona oa optical, mechanical, thermal le lik'hemik'hale.Thepa ea eona e ikhethang ea thepa e etsa hore e tšoanelehe bakeng sa lits'ebetso tse hlokang ho ts'oara nako e telele, ho hlaka ho hoholo ha optical, ho kenya motlakase le ho hanyetsa likarolo tsa tikoloho.
