Silicon Carbide Crucibles Power Next-Gen Semiconductor Crystal Growth

1. Hordhac

Kaliya 24 saacadood ka hor, Wolfspeed waxay ku dhawaaqday balaarinteeda $5 bilyan silsiladda carbide (SiC) xarun wax soo saar oo wafer ah oo ku taal North Carolina — tallaabo muujineysa baahida sii kordheysa ee caalamiga ah ee semiconductors-waxqabad sare oo loo isticmaalo gawaarida korantada, kaabayaasha 5G, iyo nidaamyada tamarta la cusboonaysiin karo. Wadnaha boodada tignoolajiyada waxaa ku jira geesi la yaab leh oo aan la heesin: silikoon carbide crucible.

Halka dadka intiisa badani isku lammaan yihiin silicon carbide leh abrasives ama hub, doorka ay ku leedahay koritaanka crystal heerkulka sare waa meesha ay si dhab ah u iftiimaan. Maqaalkan, waxaan ku dhex milmi doonaa sida silikoon carbide crucible u sahlo soo saarista kiristaalo aadka u saafiga ah ee SiC-iyo sababta beddelka sida silicon nitride ama boron carbide ay si fudud ula mid noqon karin waxqabadkeeda niche-kan laakiin codsiga muhiimka ah.

2. Waa maxay sababta Crucibles Silicon Carbide ay Muhiim ugu yihiin Kobaca Crystal

Koraaya hal-crystal silicon carbide—hannaan loo yaqaan gaadiidka uumiga jirka (PVT)—wuxuu u baahan yahay heerkul ka sarreeya 2,200°C jawiga aan firfircoonayn. Darafyadan, alaabooyinka badankoodu waa dhalaalaan, waxay la falgalaan uumiga, ama waxay wasakheeyaan crystal-ka. Geli crucible carbide silicon.

Waxa laga sameeyay carbide silikoon nadiif ah oo nadiif ah, weelashani waxay bixiyaan degenaansho kulayl aan caadi ahayn, firfircoonaan kiimikaad, iyo xoog makaanik heerkul aad u sarreeya. Si ka duwan crucibles graphite, kaas oo soo bandhigi kara wasakh kaarboon, silicon crucibles carbide yaree wasakhowga, iyadoo la hubinayo in waferrada SiC ee ka dhashay ay la kulmaan heerarka nadaafadda adag ee ay dalbadaan warshadaha semiconductor.

3. Silicon Carbide vs. Beddelka: Waa maxay sababta daahirnimada iyo xasilloonida ay muhiim u tahay

Injineerada mararka qaarkood waxay tixgeliyaan dhoobada kale ee horumarsan sida silikoon nitride ama boron carbide oo loogu talagalay codsiyada kulaylka sareeyo. Si kastaba ha ahaatee, boron carbide vs silsiladda carbide waxay daaha ka qaadaysaa guusha cad ee koritaanka crystal: boron carbide waxay u janjeertaa inay sii deyso uumiga boron heerkulka sare, kaas oo si aan ula kac ahayn u soo saari kara kiristaalo SiC oo burburin kara hantideeda korantada.

Silicon nitride, halka aad ugu fiican qaybaha sida silikoon nitride giraanta, gaashaanka kulaylka silikoon nitride caado ah, ama taarikada nitride silicon nitride, waxay ka maqan tahay kuleyliyaha kulaylka iyo waafaqid kiimikaad ee looga baahan yahay foornada PVT gudaheeda. Xataa warshadda silikoon nitride crucible waxay ku dhibtoonaysaa inay soo saarto weel badbaada oo soo noqnoqda 2,300°C iyada oo aan hoos loo dhigin.

Taas bedelkeeda, silikoon carbide crucible ayaa weli ah mid xasiloon oo aan falcelin lahayn—muhiim u ah soosaarka crystal-ka ee joogtada ah.

4. Wixii ka dambeeya Crucible: Qaybaha Taageeraya ee Nidaamyada SiC-ga Heer Sare

Kaarbide silikoon kaligiis ma shaqeeyo. Waa qayb ka mid ah isku-dhafka deegaanka heerkul sare oo ay ku jiraan qaybaha kale ee gaarka ah ee SiC:

• tuubooyinka dhoobada silikon carbide ee dahaarka foornada iyo socodka gaaska
• Silicon carbide thermocouple tuubooyinka ilaalinta heerkulka si loola socdo heerkulka iyada oo aan la faragelin
• giraanta silikoon carbide iyo tiirarka dhoobada silikoon carbide ee taageerada qaabdhismeedka
• nambarada gubanaya silikon carbide iyo leben carbide silikoon oo loogu talagalay dahaarka foornada

Xataa rbsic silicon carbide tile blocks - falcelinta-ku-xidhan SiC-waxaa loo isticmaalaa gidaarada foornada si ay u adkaystaan ​​shoogga kulaylka. Wadajir ahaan, qaybahani waxay abuuraan jawi aan wasakhayn, kulayl fiican leh halkaas oo ay ka samaysan karaan kiristaalo SiC oo aan cillad lahayn.

5. Jahwareerka Macaamilka: Dhammaan 'Silicon Carbide Ceramic' maaha kuwa loogu talagalay Semiconductors

Baadhitaan degdeg ah oo khadka ah ayaa daaha ka qaadaya daraasiin badeecooyin ah oo ay ku qoran yihiin 'Silicon carbide ceramic saxan lagu dubayo,'' saxannada dhoobada cashada ee silikon carbide,'ama' silikon carbide dhoobada weelka lagu adeego.' In kasta oo walxahan ay SiC u isticmaali karaan haynta kulaylka ama soo jiidashada bilicda, waxay asal ahaan ka duwan yihiin dabaqyada silikon carbide-ka ee heerka warshadaha.

Silikoon kaarbiide saafi ah oo run ah oo loo isticmaalo wax soo saarka semiconductor wuxuu ka kooban yahay wasakh yar (badanaa <10 ppm biraha) waxaana lagu shubaa xaalado la xakameeyey. Qalabka jikada ee lagu calaamadeeyay sida 'silikon carbide ceramic' ayaa caadi ahaan ah qalab dhagax ah oo la isku daray ama dhaldhalaalka ah - oo aan ku habboonayn deegaanka 2,000 ° C.

Sidoo kale, walxaha sida qasabadaha dhoobada dhoobada ee silikoon carbide, saxanadaha shiidaalka silikoon carbide, ama tuubooyinka dhoobada silikoon carbide waxay u adeegaan suuqyo kala duwan - tuubooyinka, abrasives, ama farsamaynta kiimikaad - mana aha in lagu dhejiyo walxo heersare ah.

6. Muuqaalka Mustaqbalka iyo Dhaqdhaqaaqa Warshadaha

Shirkadaha sida Wolfspeed, II-VI (hadda isku xidhan), iyo STMicroelectronics tartanka si loo cabbiro wax soo saarka waferka SiC, baahida loo qabo wax-qabadka sare ee silikoon carbide crucibles ayaa cirka isku shareeray. Cusbooneysiin ku saabsan nakhshad aan la karin karin - sida kala duwanaansho dalool ah oo loogu talagalay xakamaynta uumiga ka wanaagsan ama xargaha isku dhafan si loo kordhiyo cimriga - ayaa horayba u socday horumar.

Dhanka kale, suuqa budada nitride silikoon nadiif ah oo sarreeya ayaa sii waday inuu koro, laakiin ugu horreyntii xajmiyada, qalabka goynta, iyo hawada-maaha korriinka crystal. Hadda, iyo mustaqbalka la filayo, silikoon carbide crucible waa mid aan la bedeli karin si loo helo koronto ka wanaagsan, dhaqso badan, oo waxtar leh.

7. Gunaanad

Laga soo bilaabo baabuurta korantada ilaa rogayaasha cadceedda, kacaanka teknoolajiyada wuxuu ku shaqeeyaa semiconductors silikoon carbide - kuwana waxay ku bilaabaan nolosha gudaha silikoon carbide crucible. Qaybtan dhoobada ah ee niche ma samayn karto cinwaanno, laakiin la'aanteed, jiilka soo socda ee tamarta nadiifka ah iyo kaabayaasha dhijitaalka ah si fudud ma jiraan. Maaddaama ay wax-soo-saarku cabbirayaan heer caalami, filo xitaa hal-abuurnimo dheeraad ah sida aan u naqshadeyno, u soo saarno, iyo dib-u-isticmaalka weelasha heer-kulka sare ee cajiibka ah.

Mareegahayaga oo la aasaasay Oktoobar 17, 2012, waa shirkad tignoolajiyadeed sare leh oo ay ka go'an tahay cilmi-baarista iyo horumarinta, wax soo saarka, farsamaynta, iibinta iyo adeegyada farsamada ee alaabta qaraabada dhoobada ah sida Silicon. Alaabadayada waxaa ku jira laakiin aan ku xaddidnayn Alaabooyinka dhoobada ah ee Boron Carbide, Alaabta dhoobada ee Boron Nitride, Alaabta dhoobada ee Silicon Nitride, Alaabta dhoobada ee Silicon Nitride, Alaabta dhoobada ee Zirconium Dioxide, iwm. Hadii aad xiisaynayso, fadlan xor u noqo inaad nala soo xidhiidho.