Kubvacrucibleinoshandiswa semudziyo uye mune convection mukati, sezvo saizi yekristaro imwe chete inowedzera, kupisa kutenderera uye tembiricha gradient kufanana kunowedzera kuoma kudzora. Nekuwedzera magineti kuita kuti conductive kunyungudika iite paLorentz simba, convection inogona kudzikiswa kana kubviswa kuti ibudise yemhando yepamusoro imwe crystal silicon.
Zvinoenderana nerudzi rwemagineti, inogona kukamurwa kuita yakachinjika magineti, vertical magineti uye CUSP magineti munda:
Vertical magnetic field haigone kubvisa iyo huru convection nekuda kwezvikonzero zvechimiro uye haiwanzo kushandiswa.
Kutungamira kweiyo magineti chikamu cheiyo yakachinjika magineti inotenderera kune huru kupisa convection uye chikamu chekumanikidzwa kutenderera kwemadziro ecrucible, ayo anogona kunyatso kumisa kufamba, kuchengetedza kupfava kwekukura kwechimiro, uye kuderedza kukura mitsetse.
CUSP magineti ine kuyerera kwakafanana uye kuchinjisa kupisa kwekunyunguduka nekuda kwekuenzana kwayo, saka tsvakiridzo yenzvimbo dzakamira uye CUSP yemagineti yanga ichifambidzana.
KuChina, Xi'an University of Technology yakaona kugadzirwa uye kudhonza kwekristaro kuyedzwa kwesilicon imwe makristasi uchishandisa magineti minda kare. Zvigadzirwa zvayo zvikuru 6-8in akakurumbira marudzi, ayo akanangana nesilicon wafer musika we solar photovoltaic masero. Munyika dzekunze, dzakadai seKAYEX muUnited States neCGS kuGermany, zvigadzirwa zvavo zvikuru ndeye 8-16in, iyo inokodzera single crystal silicon rods pamwero we-ultra-large-scale integrated circuits uye semiconductors. Vane monopoly mumunda wemagnetic fields yekukura kwehombe-diameter yepamusoro-mhando makristasi uye ndivo vanonyanya kumiririra.
Iyo magineti yekugovera munzvimbo inoroverwa yeimwe crystal yekukura system ndiyo inonyanya kukosha chikamu chegineti, kusanganisira kusimba uye kufanana kweiyo magineti pamucheto wecrucible, pakati peiyo crucible, uye yakakodzera. chinhambwe chiri pasi pemvura. Iyo yakazara yakachinjika uye yunifomu inochinjika magineti, iwo magineti mitsetse yesimba yakatarisana nekristaro kukura axis. Zvinoenderana neiyo magineti maitiro uye mutemo weAmpere, iyo coil iri padyo nekumucheto kweiyo crucible uye simba remunda ndiro rakakura. Sezvo kureba kunowedzera, mhepo yemagineti kuramba inowedzera, simba remunda rinodzikira zvishoma nezvishoma, uye ndiro diki pakati.
Basa re superconducting magnetic field
Inhibiting thermal convection: Mukushayikwa kwekunze kwemagineti, silicon yakanyungudutswa inoburitsa yakasikwa convection panguva yekupisa, izvo zvinogona kutungamirira mukusaenzana kugoverwa kwetsvina uye kuumbwa kwekristaro kukanganisa. Iyo yekunze magineti inogona kudzvanya iyi convection, ichiita kugovera tembiricha mukati mekunyunguduka kwakawanda yunifomu uye kuderedza kusaenzana kugoverwa kwetsvina.
Kudzora chiyero chekukura kwekristaro: Iyo magineti inogona kukanganisa chiyero uye kutungamira kwekristaro kukura. Nekunyatso kudzora kusimba uye kugovera kweiyo magineti, iyo crystal yekukura process inogona kuvandudzwa uye kutendeseka uye kufanana kwekristaro kunogona kuvandudzwa. Munguva yekukura kwekamwe crystal silicon, okisijeni inopinda musilicon inonyungudika zvakanyanya kuburikidza nehukama hwekufamba kwekunyungudika uye crucible. Iyo magineti inoderedza mukana weokisijeni inobata iyo silicon yakanyungudika nekudzikisa convection yekunyungudika, nekudaro ichidzikisa kupera kweokisijeni. Mune zvimwe zviitiko, iyo yekunze magineti inogona kushandura iyo thermodynamic mamiriro ekunyunguduka, senge nekushandura kushushikana kwepamusoro kwekunyunguduka, izvo zvinogona kubatsira kuputika kweokisijeni, nekudaro kuderedza okisijeni yemukati mukunyungudika.
Deredza kuparara kweokisijeni uye kumwe kusvibiswa: Okisijeni ndeimwe yezvisina kuchena zvakajairika mukukura kwesilicon crystals, izvo zvichaita kuti kunaka kwekristaro kuparare. Iyo magnetic field inogona kuderedza okisijeni yemukati mukunyunguduka, nekudaro ichidzikisa kuparara kweokisijeni mukristaro nekuvandudza kuchena kwekristaro.
Kuvandudza chimiro chemukati chekristaro: Iyo magnetic field inogona kukanganisa chimiro chakaremara mukati mekristaro, zvakadai sekuparadzanisa uye miganhu yezviyo. Nekudzikisa huwandu hwekuremara uku uye nekukanganisa kugovera kwavo, huwandu hwese hwekristaro hunogona kuvandudzwa.
Kuvandudza zvimiro zvemagetsi zvemakristasi: Sezvo magineti ane mhedzisiro yakakosha paiyo microstructure panguva yekukura kwekristaro, anogona kuvandudza midziyo yemagetsi yemakristasi, senge resistivity uye mutakuri wehupenyu, izvo zvakakosha pakugadzira yakakwirira-performance semiconductor zvishandiso.
Gamuchirai chero vatengi vanobva kumativi ese enyika kuti vatishanyire kune imwezve hurukuro!
https://www.semi-cera.com/
https://www.semi-cera.com/tac-coating-monocrystal-growth-parts/
https://www.semi-cera.com/cvd-coating/
Nguva yekutumira: Jul-24-2024