Ma module ambiri amphamvu masiku ano amapangidwa ndi zitsulo zopangidwa ndi aluminiyamu oxide (Al2O3) kapena AlN, koma momwe ntchito zimakhudzira, opanga akuyang'ana magawo ena. M'mapulogalamu a EV, mwachitsanzo, kusintha kotayika kumatsika ndi 10% pamene kutentha kwa chip kumachokera pa 150 ° C kufika pa 200 ° C. Kuphatikiza apo, matekinoloje atsopano opangira zinthu monga ma module opanda solder ndi ma module opanda waya amapangitsa magawo omwe alipo kukhala ofooka kwambiri.
Chinthu chinanso chofunikira ndi chakuti mankhwalawa amayenera kukhala nthawi yayitali m'malo ovuta, monga omwe amapezeka mumagetsi amphepo. Kutalika kwa moyo wa ma turbines amphepo pansi pa nyengo zonse zachilengedwe ndi zaka khumi ndi zisanu, zomwe zimapangitsa okonza pulogalamuyi kufunafuna umisiri wapamwamba kwambiri wa substrate.
Kuchulukitsa kagwiritsidwe ntchito ka zida za SiC ndichinthu chachitatu chomwe chimayendetsa njira zina za gawo lapansi. Poyerekeza ndi ma modules wamba, ma modules oyambirira a SiC okhala ndi ma CD abwino kwambiri adawonetsa kuchepa kwa 40 mpaka 70 peresenti, komanso adawonetsa kufunikira kwa njira zatsopano zopangira ma CD, kuphatikiza magawo a Si3N4. Zizolowezi zonsezi zidzachepetsa ntchito yamtsogolo yamagulu amtundu wa Al2O3 ndi AlN, pomwe magawo ozikidwa pa Si3N4 adzakhala zinthu zomwe zingasankhidwe pama module amphamvu amtsogolo.
Silicon nitride (Si3N4) ndiyoyenera kutengera magawo amagetsi amagetsi chifukwa champhamvu yake yopindika, kulimba kwapang'onopang'ono, komanso kusinthasintha kwamafuta. Mawonekedwe a ceramic ndi kufananitsa zosinthika zovuta, monga kutulutsa pang'ono kapena kupanga ming'alu, zimakhudza kwambiri gawo lomaliza la gawo lapansi, monga kutentha kwa kutentha ndi machitidwe oyendetsa njinga otentha.
Thermal conductivity, mphamvu yopindika, ndi kulimba kwa fracture ndizofunika kwambiri posankha zipangizo zotetezera ma modules amphamvu. Kuthamanga kwapamwamba kwa kutentha ndikofunikira kuti kutentha kwachangu kuwonongeke mu gawo la mphamvu. Mphamvu yopindika ndiyofunikira momwe gawo lapansi la ceramic limagwiritsidwira ntchito ndikugwiritsiridwa ntchito panthawi yolongedza, pomwe kulimba kwa fracture ndikofunikira kuti muwone momwe ingakhalire yodalirika.
Kutsika kwamafuta otsika komanso kutsika kwamakina kumawonetsa Al2O3 (96%). Komabe, matenthedwe amatenthedwe a 24 W/mK ndiwokwanira pazantchito zambiri zamafakitale masiku ano. Kutentha kwapamwamba kwa AlN kwa 180 W/mK ndiye mwayi wake waukulu, ngakhale kuti ndi wodalirika kwambiri. Izi ndi zotsatira za kulimba kwa Al2O3 kutsika kwapang'onopang'ono komanso mphamvu yopindika yofananira.
Kuwonjezeka kwa kufunikira kodalirika kwadzetsa kupita patsogolo kwaposachedwa kwa ZTA (zirconia toughened alumina) ceramic ceramics. Ma ceramics awa ali ndi mphamvu yopindika kwambiri komanso kulimba kwa fracture kuposa zida zina. Tsoka ilo, matenthedwe amtundu wa ZTA ceramics akufanana ndi wamba Al2O3; chifukwa chake, kugwiritsa ntchito kwawo pamapulogalamu apamwamba kwambiri okhala ndi mphamvu zambiri kumakhala koletsedwa.
Pomwe Si3N4 imaphatikiza ma conductivity abwino kwambiri amafuta ndi magwiridwe antchito amakina. Kutentha kwamafuta kumatha kufotokozedwa pa 90 W/mK, ndipo kulimba kwake ndikwapamwamba kwambiri pakati pa zoumba zofananira. Makhalidwewa akuwonetsa kuti Si3N4 iwonetsa kudalirika kwambiri ngati gawo lapansi lazitsulo.
