ISapphire Substrate
Inkcazo
I-Sapphire (Al2O3) ikristale enye yinto egqwesileyo yezinto ezininzi.Inokumelana nobushushu obuphezulu, ukuqhuba kakuhle kobushushu, ubunzima obuphezulu, ukuhanjiswa kwe-infrared kunye nokuzinza okuhle kweekhemikhali.Isetyenziswa ngokubanzi kwiinkalo ezininzi zoshishino, ukhuselo lwelizwe kunye nophando lwezenzululwazi (ezifana nefestile ye-infrared yobushushu obuphezulu).Kwangaxeshanye, ikwaluhlobo lwezixhobo ezisetyenziswa ngokubanzi zekristale enye.Yeyona substrate yokuqala ekhethiweyo kwishishini langoku eliluhlaza okwesibhakabhaka, i-violet, elimhlophe elikhanyayo (i-LED) kunye ne-blue laser (LD) (ifilimu ye-gallium nitride kufuneka ibe yi-epitaxial kwi-sapphire substrate kuqala), kwaye ikwayi-superconducting ebalulekileyo. ifilimu substrate.Ukongeza kwinkqubo ye-Y, inkqubo yeLa kunye nezinye iifilimu eziphezulu zobushushu obuphezulu, inokusetyenziselwa ukukhulisa iifilimu ezintsha ze-MgB2 (i-magnesium diboride) ye-superconducting (ngokuqhelekileyo i-single-crystal substrate iya kungcoliswa yikhemikhali ngexesha lokwenziwa kweMgB2." iifilimu).
Iipropati
| Ubunyulu beCrystal | > 99.99% |
| Indawo enyibilikayo (℃) | 2040 |
| Ubuninzi (g/cm3） | 3.98 |
| Ukuqina (Mho) | 9 |
| Ukwandiswa kweThermal | 7.5 (x10-6/oC) |
| Ubushushu obuthile | 0.10 ( cal /oC) |
| I-Thermal Conductivity | 46.06 @ 0oC 25.12 @ 100oC, 12.56 @ 400oC ( W/(mK) ) |
| Dielectric Constant | ~ 9.4 @300K kwi-Axis ~ 11.58@ 300K kumgca weC |
| I-Loss Tangent kwi-10 GHz | < 2x10-5kwi-axis, <5 x10-5kwi-C ekseni |
ISapphire Substrate Inkcazo
ISapphire substrate ibhekiselele kwizinto ezibonakalayo zekristale ezenziwe ngekristale enye ye-aluminium oxide (Al2O3).Igama elithi "sapphire" lihlala lisetyenziselwa ukuchaza iintlobo zelitye le-corundum, elihlala liluhlaza okwesibhakabhaka ngombala.Nangona kunjalo, ngokubhekiselele kwi-substrates, i-sapphire ibhekisela kwi-crystal ekhulileyo, engenambala, ecocekileyo esetyenziswa kwiinkqubo ezahlukeneyo.Nanga amanye amanqaku aphambili malunga nesapphire substrates:
1. Ubume beCrystal: ISapphire inesakhiwo sekristale esinehexagonal apho iiathom zealuminiyam kunye neeathom zeoksijini zicwangciswa ngokuphindaphindiweyo.Yeyona nkqubo yekristale eyi-trigonal.
2. Ubunzima obuphezulu: I-Sapphire yenye yezona zinto zinzima kakhulu ezaziwa, kunye nobunzima be-Mohs be-9. Oku kwenza ukuba i-scratch ephezulu kunye ne-abrasion resistant, igalelo ekuqina kwayo kunye nokuphila ixesha elide kwisicelo.
3. Ukuhanjiswa kokukhanya: I-Sapphire inokuhanjiswa kokukhanya okugqwesileyo, ngokukodwa kwimimandla ebonakalayo kunye ne-infrared.Iyakwazi ukuhambisa ukukhanya ukusuka malunga ne-180 nm ukuya kwi-5500 nm, iyenze ilungele uluhlu olubanzi lwezicelo ze-optical kunye ne-optoelectronic.
4. Iimpawu ze-Thermal kunye ne-mechanical properties: I-Sapphire ineempawu ezintle zokushisa kunye nemishini, indawo ephezulu yokunyibilika, i-coefficient yokwandisa i-thermal ephantsi, kunye ne-conductivity egqwesileyo ye-thermal.Iyakwazi ukumelana namaqondo okushisa aphezulu, uxinzelelo lomatshini kunye nokuhamba ngebhayisikili ye-thermal, okwenza ukuba ilungele ukushisa okuphezulu kunye nezicelo zamandla aphezulu.
5. Ukuzinza kweekhemikhali: I-Sapphire inozinzo oluphezulu lweekhemikhali kwaye inokumelana ne-acids ezininzi, i-alkali kunye ne-solvents eziphilayo.Olu phawu luqinisekisa ukuqina kunye nokuthembeka kwiindawo ezahlukeneyo ezinzima.
6. Iimpawu zokugquma umbane: I-Sapphire yi-insulator yombane egqwesileyo, enenzuzo kwizicelo ezifuna ukuhlukaniswa kombane okanye ukugquma.
7. Isicelo: I-Sapphire substrates isetyenziswa ngokubanzi kwi-optoelectronics, i-semiconductors, i-light-emitting diodes, i-laser diodes, iifestile zamehlo, iikristale zokubukela kunye nophando lwezesayensi.
I-Sapphire substrates zixabiswa kakhulu ngenxa yokudibanisa i-optical, mechanical, thermal kunye ne-chemical properties.Iimpawu zayo ezibalaseleyo zezinto zenza ukuba zilungele izicelo ezifuna ukuqina okuphezulu, ukucaca okuphezulu kwe-optical, ukugquma kombane kunye nokuchasana nezinto ezisingqongileyo.
