Substrates ua los ntawm nyias zaj duab xis ceramic kuj raug xa mus rau cov khoom siv semiconductor. Nws yog tsim los ntawm ib tug xov tooj ntawm cov txheej nyias nyias uas tau tsim los siv lub tshuab nqus tsev txheej, deposition, los yog sputtering txoj kev. Cov ntawv iav nrog lub thickness tsawg tshaj li ib millimeter uas yog ob-dimensional (flat) los yog peb-dimensional yog suav tias yog nyias-film ceramic substrates. Lawv tuaj yeem tsim los ntawm v

Thaum Si3N4 ua ke zoo heev thermal conductivity thiab mechanical kev ua tau zoo. Cov thermal conductivity tuaj yeem teev tau ntawm 90 W / mK, thiab nws cov tawv nqaij tawg yog qhov siab tshaj plaws ntawm cov khoom sib piv. Cov yam ntxwv no qhia tias Si3N4 yuav nthuav tawm qhov kev ntseeg siab tshaj plaws raws li cov khoom siv hlau.

Boron nitride ceramics muaj lub zog zoo tshaj plaws thiab kev ua haujlwm thermal uas zoo heev ruaj khov, ua rau lawv yog qhov kev xaiv zoo tshaj plaws los ua cov nozzles uas siv rau hauv atomization ntawm molten hlau.

Boron Carbide (B4C) yog cov khoom siv ruaj khov uas muaj boron thiab carbon. Boron Carbide yog ib qho nyuaj tshaj plaws uas paub, qeb thib peb tom qab cubic Boron nitride thiab pob zeb diamond. Nws yog cov khoom siv sib xyaw ua ke siv ntau yam kev siv tseem ceeb, suav nrog cov khoom siv phom sij, cov tsho tiv thaiv cov mos txwv, thiab cov cav tov hmoov av. Qhov tseeb, nws yog cov khoom siv rau ntau yam kev siv hauv kev lag luam

High thermal conductivity thiab qis coefficient ntawm thermal expansion. Qhov kev sib xyaw ua ke ntawm cov khoom no muab qhov tshwj xeeb thermal shock tsis kam, ua rau Silicon Carbide ceramics pab tau ntau yam kev lag luam. Nws kuj yog ib qho semiconductor thiab nws cov khoom hluav taws xob ua rau nws haum rau ntau yam kev siv. Nws kuj tseem paub txog nws qhov hnyav hardness thiab corrosion kuj.

Aluminium nitride muaj cov thermal conductivity siab (170 W / mk, 200 W / mk, thiab 230 W / mk) nrog rau cov ntim siab thiab lub zog dielectric.

Thermal shock feem ntau yog thawj qhov ua rau tsis ua haujlwm hauv cov ntawv thov kub. Nws yog tsim los ntawm peb yam: thermal expansion, thermal conductivity, thiab lub zog. Kev hloov pauv kub ceev, ob qho tib si nce thiab nqis, ua rau qhov sib txawv ntawm qhov kub thiab txias, zoo ib yam li qhov tawg uas tshwm sim los ntawm rub lub khob dej khov rau lub khob kub. Vim qhov sib txawv expansion thiab contraction, txav

Kev lag luam automotive yog ua raws li kev tsim kho tshiab los ntawm kev siv cov txheej txheem thev naus laus zis los tsim cov kev hloov pauv hloov hauv nws cov txheej txheem tsim khoom thiab cov khoom tshwj xeeb ntawm cov tsheb tshiab.

Bearings thiab li qub yog ob qhov kev siv ntau tshaj plaws rau silicon nitride ceramic pob. Kev tsim cov pob silicon nitride siv cov txheej txheem uas ua ke nrog isostatic nias nrog roj siab sintering. Cov khoom siv raw rau cov txheej txheem no yog silicon nitride hmoov zoo nrog rau cov khoom siv sintering xws li txhuas oxide thiab yttrium oxide.

Muaj ntau yam khoom siv niaj hnub no, suav nrog alumina, zirconia, beryllia, silicon nitride, boron nitride, aluminium nitride, silicon carbide, boron carbide, thiab ntau ntxiv. Txhua yam ntawm cov ceramics siab heev muaj nws tus kheej tshwj xeeb ntawm kev ua tau zoo thiab qhov zoo. Txhawm rau ua kom tau raws li cov kev cov nyom uas tau nthuav tawm los ntawm cov ntawv thov hloov mus tas li, cov ntaub ntawv tshiab yog sib xws