Cov Khoom Tseem Ceeb: Laser Heating rau Semiconductor Wafer Annealing

Wafer annealing yog ib qho txheej txheem tseem ceeb hauv kev tsim khoom semiconductor, suav nrog dopant activation, lattice restoration, thiab ultra-shallow junction (USJ). Cov cua sov annealing thiab kev ua haujlwm thermal sai (RTP) raug kev txom nyem los ntawm cov peev nyiaj thermal siab, tswj tsis tau dopant diffusion, thiab tsis txaus uniformity, ua rau lawv tsis txaus rau cov thev naus laus zis siab heev ntawm 7 nm, 5 nm, thiab dhau mus - tshwj xeeb tshaj yog rau Gate-All-Around (GAA) architectures thiab 3D NAND flash memory. Laser-based wafer annealing, nrog nws cov transient high-energy irradiation, micron-scale spatial precision, thiab tsawg kawg nkaus thermal diffusion, tau tshwm sim ua cov txheej txheem tseem ceeb tiam tom ntej rau kev ua kom tau raws li cov kev xav tau tsim khoom no.

Lub Ntsiab Cai Tseem Ceeb ntawm Laser Cua Sov

Lub taub hau cua sov Wave Optics laser muaj tus qauv tsim kho qhov muag uas xa cov teeb laser muaj zog siab, thermally uniform rau kev ua kom raug ntawm cov nplaim wafer. Lub laser ntsuab muab kev nqus zoo heev nrog cov ntaub ntawv silicon (xws li SiC), ua rau muaj kev kho cua sov zoo yam tsis ua rau lub wafer puas tsuaj. Qhov no ua rau recrystallization ntawm cov txheej ion-implanted puas tsuaj thiab ua kom dopant ua haujlwm zoo. Tom qab ntawd, lub substrate lub thermal conductivity siab ua rau txias sai heev, uas khov cov qauv lattice thiab suppresses dopant diffusion. Cov txheej txheem no ua tiav tsim cov kev sib tshuam ultra-shallow nrog ob qho tib si ua haujlwm siab thiab qhov profile ntxhab (abrupt) sib tshuam.

Laser Heating Annealing yog qhov tseem ceeb rau kev txhim kho Wafer Processing Yield

1. Kev Sib Npaug Ntawm Lub Teeb: Lub zog sib npaug ntawm qhov chaw ntawm lub teeb tiaj tus tshaj 95% (ib txwm), tshem tawm qhov chaw yaj dhau lossis tsis kub hnyiab.
2. Kev Ruaj Ntseg Zog: Kev hloov pauv ntawm lub zog tso zis tas mus li yog qis dua 2%, ua kom ntseeg tau tias wafer-rau-wafer thiab batch-rau-batch zoo sib xws.
3. Kev Ntsuas Qhov Nto: Cov khoom siv kho qhov muag muaj cov nqi PV/RMS uas ntsuas tau zoo nrog kev cuam tshuam ntawm nthwv dej, tiv thaiv kev puas tsuaj rau qhov chaw kub.
4. Qhov tob ntawm kev tsom mus rau thiab Beam Shaping: Qhov tob ntawm kev tsom mus rau uas koj tuaj yeem hloov kho tau ua ke nrog beam integrator homogenization txhawb nqa kev luam theej duab tag nrho ntawm cov wafers loj.
5. Kev Sib Tw Wavelength: Zoo rau cov wavebands nqus tau zoo ntawm silicon thiab cov semiconductors tiam peb (piv txwv li, SiC, GaN) kom ua kom siv hluav taws xob tau zoo tshaj plaws.

Peb Qhov Zoo Tshaj Plaws Dua Li Kev Siv Hluav Taws Xob

1. Kev tswj hwm zoo heev ntawm kev sib kis ntawm dopant - Kev raug cua sov tsuas yog txwv rau qhov ntau ntawm nanosecond-rau-millisecond nrog ze li xoom dopant diffusion, lub peev xwm tsis tuaj yeem ua tiav los ntawm kev ua kom sov lossis RTP.

2. Kev siv nyiaj tsawg thiab kev puas tsuaj tsawg kawg nkaus ntawm cov khoom siv - Tsuas yog qhov chaw wafer nto muaj kev kub siab ib ntus, ua rau tsis muaj kev hloov pauv thermal ntawm cov khoom siv lossis cov qauv khoom siv thiab tsis muaj kev puas tsuaj ntawm cov khoom siv.

3. Kev xaiv qhov chaw annealing - Cov teeb meem micron-scale beam txhawb nqa kev annealing hauv zos rau 3D kev koom ua ke thiab cov khoom siv sib xyaw ua ke.

Cov Xwm Txheej ntawm Daim Ntawv Thov

Cov ntawv thov suav nrog kev qhib qhov chaw/qhov dej ntws, kev kho cov channel, thiab ohmic contact annealing rau advanced logic (GAA/CFET), DRAM/3D NAND, SiC/GaN fais fab khoom siv, SOI, thiab micro/nano khoom siv. Laser annealing muab kev txhim kho tib lub sijhawm hauv cov txiaj ntsig thiab kev ua haujlwm ntawm cov khoom siv.

Kev siv laser annealing hloov cov txheej txheem wafer los ntawm kev siv thoob ntiaj teb (daim pam) annealing mus rau kev siv precision local annealing. Nws cov thev naus laus zis optical muaj zog txhawb nqa kev txuas ntxiv mus rau qhov kev nce qib thiab kev ua tau zoo ntawm cov semiconductor nodes siab heev.

Daim Ntawv Qhia Txog Khoom