Silicon nitride (Si3N4) yog cov khoom siv ntau yam ceramic paub txog nws cov khoom zoo heev, thermal, thiab hluav taws xob. Ib qho ntawm cov khoom siv hluav taws xob tseem ceeb ntawm silicon nitride yog nws cov dielectric tas li, kuj hu ua nws cov txheeb ze permittivity.
Lub dielectric tas li ntawm silicon nitride feem ntau yog li ntawm 6 mus rau 9, nyob ntawm seb hom tshwj xeeb thiab kev ua haujlwm. Tus nqi no tso silicon nitride nyob rau hauv qeb ntawm cov khoom qis-rau nruab nrab-dielectric tas li. Lub silicon nitride muaj pes tsawg leeg, crystalline qauv, thiab porosity yog ob peb yam piv txwv ntawm cov yam ntxwv uas cuam tshuam rau qhov dielectric tas li.
Qhov tsis tshua muaj dielectric tas li ntawm silicon nitride ua rau nws haum rau ntau yam kev siv hluav taws xob thiab microelectronic. Ib qho ntawm cov txiaj ntsig tseem ceeb ntawm kev siv cov khoom siv uas tsis tshua muaj dielectric tsis tu ncua yog txo cov kab mob parasitic capacitance hauv cov khoom siv hluav taws xob. Tsawg parasitic capacitance yog ntshaw nyob rau hauv kev sib xyaw circuits vim nws pab txhim kho cov teeb liab kev ncaj ncees, txo hwj chim noj, thiab txhim khu kev qha tag nrho.
Lub dielectric tas li ntawm silicon nitride tseem ua lub luag haujlwm tseem ceeb hauv kev tsim cov capacitors, insulators, thiab lwm yam khoom siv hauv cov khoom siv hluav taws xob. Hauv kev tsim cov kev sib txuas sib txuas, silicon nitride feem ntau yog siv los ua cov khoom siv dielectric hauv cov txheej txheem insulating ntawm cov khoom siv hluav taws xob. Nws tsis tshua muaj dielectric tsis tu ncua pab txo cov peev txheej ntawm cov neeg sib txuas uas nyob ib sab, yog li txhim kho kev ua haujlwm ntawm Circuit Court.
Ntxiv mus, silicon nitride zoo heev thermal stability thiab mechanical zog ua rau nws yog ib qho kev xaiv rau cov kev siv nyob rau hauv hnyav ib puag ncig, xws li high-temperature thiab high-pressure tej yam kev mob. Qhov kev sib xyaw ua ke ntawm cov khoom no ua rau silicon nitride yog cov khoom siv zoo nkauj rau ntau yam kev siv hluav taws xob thiab cov khoom siv hluav taws xob, suav nrog hauv kev tsim cov sensors, microelectromechanical systems (MEMS), thiab ua cov txheej tiv thaiv rau cov khoom siv hluav taws xob.
Hauv kev xaus, qhov dielectric tas li ntawm silicon nitride yog ib qho tseem ceeb tsis zoo uas cuam tshuam nws qhov haum rau ntau yam kev siv hluav taws xob. Qhov qis mus rau nruab nrab dielectric tas li ntawm silicon nitride pab txhawb rau nws cov txiaj ntsig hauv kev txo cov kab mob parasitic capacitance thiab txhim kho kev ua haujlwm ntawm cov khoom siv hluav taws xob. Nws versatility thiab robust zog ua hauj lwm silicon nitride raws li ib tug tseem ceeb khoom nyob rau hauv lub puas-evolving teb ntawm electronics.
