Cov ntsiab lus tseem ceeb ntawm metallized ceramics core kev lag luam

Metallized ceramics yog cov khoom sib xyaw uas sib xyaw hlau thiab ceramic los ntawm cov txheej txheem tshwj xeeb. Lawv muab cov hardness siab, siab -kub tsis kam, thiab corrosion kuj ntawm ceramics nrog hluav taws xob conductivity thiab machinability ntawm hlau. Lawv cov thev naus laus zis tseem ceeb nyob hauv kev ua tiav kev sib koom ua ke ntawm Ceramic rau Hlau thiab hlau los ntawm kev hloov kho saum npoo. Lawv tau siv dav hauv kev lag luam xws li ntim khoom siv hluav taws xob, lub zog, thiab aerospace. Cov hauv qab no yog ib qho kev ntsuam xyuas dav dav ntawm cov hauv paus ntsiab lus, kev siv scenarios, kev lag luam xwm txheej, thiab kev txhim kho tiam sis:

Kev npaj ntawm Metallization Ceramics yuav tsum tau hais txog cov teeb meem xws li qhov sib txawv ntawm thermal expansion coefficients ntawm ceramic thiab hlau, nrog rau kev sib txuas ntawm lub zog tsis txaus. Cov txheej txheem tseem ceeb muaj xws li:

1. Siab -Tsub Co-Tsev Tawm (HTCC/LTCC):Lub Alumina Metallized Ceramics ntsuab lub cev thiab cov neeg xyuas pib hlau yog ib txhij sintered ntawm qhov kub thiab txias los tsim cov qauv sib xyaw. Qhov no haum rau siab - zaus Circuit Court substrates.

2. Direct Bonded Copper (DBC):Txoj kev no ncaj qha sib txuas cov ntawv ci tooj liab rau cov metallized ceramic Cheebtsam substrate los ntawm siab -kub melting. Txoj kev no muaj cov thermal conductivity siab (nce txog 200 W / m·K) thiab feem ntau yog siv rau hauv cov khoom siv fais fab.

3. Active Hlau Brazing (AMB):Siv brazing muab tub lim hlau uas muaj cov ntsiab lus tseem ceeb xws li titanium los ua ib daim ntawv cog lus metallurgical ntawm cov ceramic metallization nto, ua tiav cov txheej txheem hlau muaj zog tshaj 15 N / mm², cov txheej txheem no yog lub ntsiab rau silicon nitride substrates.

4. Sputtering-Electroplating Composite (SBC):Ib txheej noob yog tsim los ntawm lub tshuab nqus tsev sputtering, ua raws li cov txheej hlau thickened los ntawm electroplating, ua tiav "zero-pore" metallization. Bond zog tshaj 30 N / mm² thiab yog sib xws nrog ntau yam metallized alumina ceramics cov ntaub ntawv.

Qhov kev ua tau zoo ntawm metalized alumina tau ua rau lawv muaj txoj haujlwm tseem ceeb hauv kev tsim khoom siab - kawg:

High Thermal conductivity:Aluminium nitride substrates muab cov thermal conductivity ntawm 180-270 W / m·K, zoo dua rau cov tsoos alumina substrates (20-30 W / m·K). Lawv tau siv dav hauv 5G hauv paus chaw nres tsheb RF cov khoom siv thiab lub zog tshiab tsheb IGBT modules.
High rwb thaiv tsev:Nrog cov rwb thaiv tsev tiv thaiv ntau tshaj 10¹²Ω ntawm qhov hluav taws xob siab tshaj 1000V, lawv tsim nyog rau siab - cov khoom siv hluav taws xob xa hluav taws xob thiab avionics tswj tshuab. Kev Tiv Thaiv Ib puag ncig: Muaj qhov kub thiab txias los ntawm -196℃txog 200 degree, tswj kev ua haujlwm ruaj khov hauv cov khoom kub kub ntawm cov tshuab dav hlau thiab cov cuab yeej tshawb nrhiav qhov chaw sib sib zog nqus.

Hom Kev Thov Scenarios:
1. Semiconductor Ntim: Ua haujlwm raws li cov neeg nqa khoom nti thiab lub dab dej kub, txhawb siab - kev sib xyaw ua ke ntawm cov txheej txheem siab heev.
2. Lub Zog Tshiab: Silicon nitride substrates rau IGBT modules yog cov khoom tseem ceeb ntawm lub zog tshiab lub cev muaj zog tswj, cuam tshuam ncaj qha rau lub zog ntawm lub tsheb.
3. Aerospace: Rocket engine combustion chamber linings thiab satellite power modules siv alumina ceramic Cheebtsam los tiv thaiv huab cua kub thiab kev co.
4. Muaj Automation: Siab - kub sensors thiab precision ntsuas Cheebtsam cia siab rau lawv stability.

Raws li cov khoom siv tseem ceeb rau kev tsim khoom siab - kawg,metallized ceramics' technological breakthroughs thiab kev hloov kho kev lag luam yog qhov tseem ceeb heev rau kev ywj pheej thiab tswj kev txhim kho ntawm Tuam Tshoj txoj kev lag luam tawm tswv yim. Nrog rau kev nce qib ntawm kev tsim khoom hauv tsev thiab kev nthuav dav ntawm daim ntawv thov scenarios, qhov kev lag luam no yuav tsum ua tiav los ntawm "ua raws" mus rau "khiav ib sab" thiab txawm tias "ua" hauv kaum xyoo tom ntej.