Hafnium yog cov khoom siv tshuaj lom neeg uas muaj ntau yam kev siv hauv kev lag luam semiconductor. Nws yog cov hlau refractory heev uas tiv taus corrosion thiab muaj lub siab melting point, ua rau nws yog ib qho khoom siv zoo tshaj plaws rau kev tsim khoom ntawm ntau yam khoom siv hluav taws xob.
Ib qho ntawm cov kev siv tseem ceeb ntawm hafnium hauv kev lag luam semiconductor yog cov khoom siv rooj vag rau kev cuam tshuam rau thaj chaw cuam tshuam (FETs). FETs yog siv rau hauv microprocessors, nco chips, thiab lwm yam khoom siv hluav taws xob, thiab kev ua haujlwm ntawm cov khoom siv no yog nyob ntawm qhov zoo ntawm cov khoom siv ntawm lub rooj vag. Hafnium-raws li cov rooj vag tau pom tias muaj cov khoom siv hluav taws xob zoo dua thiab lub cev zoo dua piv rau lwm cov ntaub ntawv rooj vag, tso cai rau kev ua tau zoo dua thiab ua kom muaj zog ntau dua.
Lwm daim ntawv thov tseem ceeb ntawm hafnium hauv kev lag luam semiconductor yog raws li cov khoom siv dielectric hauv capacitors thiab lwm yam khoom siv hluav taws xob. Hafnium oxide yog ib qho zoo heev insulator, nrog lub siab dielectric tas li thiab tsis tshua muaj to tam sim no. Qhov no ua rau nws yog ib qho khoom siv zoo tshaj plaws rau kev siv hauv high-capacitance capacitors thiab lwm yam khoom siv hluav taws xob.
Hafnium kuj tseem siv rau hauv kev tsim cov khoom siv plasma etching, uas yog siv los kos cov qauv mus rau cov khoom siv semiconducting. Cov khoom tshwj xeeb ntawm hafnium ua rau nws zoo tagnrho rau kev siv hauv cov txheej txheem no, ua kom muaj tseeb thiab raug etching ntawm cov qauv nyuaj.
Hauv kev xaus, hafnium yog cov khoom siv tseem ceeb hauv kev lag luam semiconductor. Nws cov khoom tshwj xeeb ua rau nws yog ib qho khoom siv zoo tshaj plaws rau kev siv ntau yam khoom siv hluav taws xob, los ntawm FETs mus rau capacitors thiab etching khoom. Raws li qhov kev thov rau cov khoom siv hluav taws xob ua tau zoo txuas ntxiv mus ntxiv, qhov tseem ceeb ntawm hafnium hauv kev lag luam semiconductor zoo li yuav nce ntxiv.
