UWENZA KANJANI I-SILICON WAFER
A isilucwecwanaiwucezu lwe-silicon oluwugqinsi oluyimilimitha elingu-1 olunendawo eyisicaba ngokwedlulele ngenxa yezinqubo ezidingeka kakhulu ngokobuchwepheshe.Ukusetshenziswa okulandelayo kunquma ukuthi iyiphi inqubo yokukhula kwekristalu okufanele isetshenziswe.Enqubweni ye-Czochralski, isibonelo, i-silicon ye-polycrystalline iyancibilika futhi ikristalu yembewu encane yepensela ifakwe ku-silicon encibilikisiwe.Ikristalu yembewu ibe isijikeleziswa futhi kancane idonselwa phezulu.I-colossus enzima kakhulu, i-monocrystal, imiphumela.Kungenzeka ukukhetha izici zikagesi ze-monocrystal ngokungeza amayunithi amancane ama-dopants ahlanzekile kakhulu.Amakristalu afakwa ngokuhambisana nokucaciswa kwekhasimende abese epholishwa futhi asikwe abe izingcezu.Ngemva kwezinyathelo ezihlukahlukene zokukhiqiza ezengeziwe, ikhasimende lithola ama-wafers alo acacisiwe emaphaketheni akhethekile, okuvumela ikhasimende ukuthi lisebenzise i-wafer ngokushesha emgqeni wayo wokukhiqiza.
INQUBO YE-CZOCHRALSKI
Namuhla, ingxenye enkulu ye-silicon monocrystals ikhulile ngokwenqubo ye-Czochralski, ehlanganisa ukuncibilika kwe-silicon ye-polycrystalline high-purity ku-crucible quartz hyperpure kanye nokwengeza i-dopant (imvamisa i-B, P, As, Sb).Ikristalu elincane, le-monocrystalline imbewu licwiliswa ku-silicon encibilikisiwe.Ikristalu enkulu ye-CZ ibe isikhula kusukela kule crystal encane.Ukulawulwa okunembayo kwezinga lokushisa le-silicon encibilikisiwe kanye nokugeleza, ukuzungezisa okucwebezelayo, kanye nesivinini sokudonsa ngekristalu kuphumela ku-silicon ingot yekhwalithi ephezulu kakhulu ye-monocrystalline.
FLOAT ZONE INDLELA
Ama-monocrystals akhiwe ngokwendlela ye-float zone alungele ukusetshenziswa ezingxenyeni ze-semiconductor yamandla, njengama-IGBT.I-cylindrical polycrystalline ingot ye-silicon igxunyekwe phezu kwekhoyili yokungeniswa.Inkambu ye-radio frequency electromagnetic isiza ukuncibilikisa i-silicon engxenyeni engezansi yenduku.Inkambu ye-electromagnetic ilawula ukugeleza kwe-silicon ngembobo encane kukhoyili yokungeniswa bese ingena ku-monocrystal engaphansi (indlela yendawo yokuntanta).I-doping, imvamisa eno-B noma i-P, ifinyelelwa ngokungeza izinto ezinegesi.
Isikhathi sokuthumela: Jun-07-2021