LT Lithium Tantalate (LiTaO3) Crystal 2 nti/3 nti/4 nti/6 nti Orientaiton Y-42 °/36 °/108 ° Thickness 250-500um

Kev Piav Qhia Luv:

LiTaO₃ wafers sawv cev rau ib qho tseem ceeb piezoelectric thiab ferroelectric khoom siv system, qhia txog cov coefficients piezoelectric zoo kawg nkaus, thermal stability, thiab optical properties, ua rau lawv tsis tseem ceeb rau surface acoustic wave (SAW) filters, bulk acoustic wave (BAW) resonators, optical modulators, thiab infrared detectors. XKH tshwj xeeb hauv kev tshawb fawb thiab kev tsim khoom zoo LiTaO₃ wafer, siv cov txheej txheem Czochralski (CZ) crystal growth thiab liquid phase epitaxy (LPE) kom ntseeg tau tias muaj crystalline homogeneity zoo dua nrog cov defect densities <100 / cm².

XKH muab 3-nti, 4-nti, thiab 6-nti LiTaO₃ wafers nrog ntau yam crystallographic orientations (X-cut, Y-cut, Z-cut), txhawb kev kho doping (Mg, Zn) thiab poling treatments kom ua tau raws li cov kev cai thov tshwj xeeb. Cov khoom siv dielectric tas mus li (ε ~ 40-50), piezoelectric coefficient (d₃₃ ~ 8-10 pC / N), thiab Curie kub (~ 600 ° C) tsim LiTaO₃ ua lub substrate nyiam rau cov lim dej siab thiab cov sensors precision.

Peb qhov kev tsim khoom sib xyaw ua ke suav nrog kev loj hlob ntawm cov siv lead ua, kev ua wafering, kev txhuam, thiab kev tso cov zaj duab xis nyias, nrog rau lub peev xwm tsim khoom txhua hli ntau dua 3,000 wafers los pab rau 5G kev sib txuas lus, cov khoom siv hluav taws xob, photonics, thiab kev lag luam tiv thaiv. Peb muab kev sab laj txog kev siv tshuab, kev piav qhia txog cov qauv, thiab cov kev pabcuam prototyping tsawg kom xa cov kev daws teeb meem LiTaO₃ zoo tshaj plaws.

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Cov yam ntxwv

Cov kev tsis sib xws

Lub Npe	LiTaO3 qib kho qhov muag	Lub rooj suab theem LiTaO3
Axial	Z txiav + / - 0.2 °	36 ° Y txiav / 42 ° Y txiav / X txiav(+ / - 0.2 °)
Txoj kab uas hla	76.2 hli + / - 0.3 hli/100 ± 0.2 hli	76.2 hli + /-0.3 hli100 hli + /-0.3 hli 0r 150 ± 0.5 hli
Datum dav hlau	22 hli + / - 2 hli	22 hli + /-2 hli32 hli + /-2 hli
Qhov tuab	500um + /-5 hli1000um + /-5 hli	500um + /-20 hli350um + /-20 hli
TTV	≤ 10um	≤ 10um
Kub ntawm Curie	605 °C + / - 0.7 °C (Txoj kev DTA)	605 °C + / -3 °C (Txoj kev DTA
Qhov zoo ntawm qhov chaw	Kev txhuam ob sab	Kev txhuam ob sab
Cov npoo chamfered	kev puag ncig ntug	kev puag ncig ntug

Cov Yam Ntxwv Tseem Ceeb

1. Cov qauv siv lead ua thiab kev ua haujlwm hluav taws xob

· Kev Ruaj Ntseg Crystallographic: 100% 4H-SiC polytype dominance, xoom multicrystalline inclusions (piv txwv li, 6H/15R), nrog XRD rocking curve full-width ntawm ib nrab-siab tshaj plaws (FWHM) ≤32.7 arcsec.
· Kev Muaj Peev Xwm Nqa Tau Siab: Kev muaj peev xwm ntawm cov hluav taws xob ntawm 5,400 cm²/V·s (4H-SiC) thiab kev muaj peev xwm ntawm qhov ntawm 380 cm²/V·s, ua rau muaj kev tsim cov cuab yeej siv zaus siab.
· Kev Nyuaj Siab ntawm Kev Tawm Hluav Taws Xob: Tiv taus 1 MeV neutron irradiation nrog qhov kev puas tsuaj ntawm 1 × 10¹⁵ n / cm², zoo tagnrho rau kev siv aerospace thiab nuclear.

2. Cov Khoom Siv Thermal thiab Mechanical

· Kev Ua Haujlwm Kub Tshaj Plaws: 4.9 W/cm·K (4H-SiC), peb npaug ntawm silicon, txhawb kev ua haujlwm siab tshaj 200 ° C.
· Tus Nqi Qis Thermal Expansion: CTE ntawm 4.0 × 10⁻⁶ / K (25–1000 ° C), kom ntseeg tau tias muaj kev sib raug zoo nrog cov ntim khoom uas ua los ntawm silicon thiab txo qis kev ntxhov siab thermal.

3. Kev Tswj Xyuas Qhov Tsis Zoo thiab Kev Ua Haujlwm Zoo

· Qhov Ceev ntawm Micropipe: <0.3 cm⁻² (8-nti wafers), qhov ceev ntawm dislocation <1,000 cm⁻² (tau txheeb xyuas los ntawm KOH etching).
· Qhov Zoo Ntawm Qhov Chaw: CMP-polished rau Ra <0.2 nm, ua tau raws li EUV lithography-qib flatness xav tau.

Cov Ntawv Thov Tseem Ceeb

Domain	Cov xwm txheej ntawm daim ntawv thov	Cov Kev Zoo ntawm Kev Siv Tshuab
Kev sib txuas lus optical	100G/400G lasers, silicon photonics hybrid modules	Cov noob InP ua rau muaj qhov sib txawv ntawm bandgap (1.34 eV) thiab Si-based heteroepitaxy, txo qhov poob ntawm optical coupling.
Cov Tsheb Siv Hluav Taws Xob Tshiab	800V cov inverters hluav taws xob siab, cov chargers onboard (OBC)	Cov khoom siv 4H-SiC tiv taus >1,200 V, txo qhov kev poob ntawm kev sib txuas lus los ntawm 50% thiab qhov ntim ntawm lub kaw lus los ntawm 40%.
Kev Sib Txuas Lus 5G	Cov khoom siv RF millimeter-wave (PA/LNA), cov amplifiers fais fab chaw nres tsheb	Cov khoom siv SiC semi-insulating (resistivity >10⁵ Ω·cm) ua rau muaj kev sib koom ua ke ntawm zaus siab (60 GHz+).
Cov Khoom Siv Lag Luam	Cov khoom siv ntsuas kub siab, cov khoom siv hloov pauv tam sim no, cov khoom siv tshuaj ntsuam nuclear	Cov noob InSb (0.17 eV bandgap) xa cov khoom siv magnetic txog li 300% @ 10 T.

LiTaO₃ Wafers - Cov Yam Ntxwv Tseem Ceeb

1. Kev Ua Haujlwm Zoo Tshaj Plaws Piezoelectric

· Cov coefficients piezoelectric siab (d₃₃~8-10 pC/N, K²~0.5%) ua rau cov khoom siv SAW/BAW zaus siab nrog kev poob ntxig <1.5dB rau 5G RF lim dej

· Kev sib txuas zoo heev ntawm electromechanical txhawb nqa cov qauv lim dej dav dav (≥5%) rau cov ntawv thov sub-6GHz thiab mmWave

2. Cov Khoom Siv Kho Qhov Muag

· Kev pom tseeb ntawm Broadband (>70% kev sib kis los ntawm 400-5000nm) rau cov electro-optic modulators ua tiav >40GHz bandwidth

· Muaj zog nonlinear optical susceptibility (χ⁽²⁾~30pm/V) ua rau muaj kev ua haujlwm zoo thib ob harmonic tiam (SHG) hauv cov tshuab laser

3. Kev Ruaj Ntseg Ib puag ncig

· Qhov kub siab Curie (600°C) tswj tau cov lus teb piezoelectric hauv qib tsheb (-40°C txog 150°C) ib puag ncig

· Kev tsis muaj tshuaj lom neeg tiv thaiv cov kua qaub / alkalis (pH1-13) ua kom muaj kev ntseeg siab hauv kev siv sensor hauv kev lag luam

4. Kev Muaj Peev Xwm Kho Kom Haum

· Kev tsim kho kev taw qhia: X-txiav (51°), Y-txiav (0°), Z-txiav (36°) rau cov lus teb piezoelectric tshwj xeeb

· Cov kev xaiv doping: Mg-doped (tiv taus kev puas tsuaj ntawm qhov muag), Zn-doped (txhim kho d₃₃)

· Qhov chaw tiav: Epitaxial-npaj polishing (Ra <0.5nm), ITO / Au metallization

LiTaO₃ Wafers - Cov Ntawv Thov Tseem Ceeb

1. RF Pem Hauv Ntej-Qhov Kawg Modules

· 5G NR SAW lim dej (Band n77/n79) nrog rau qhov kub thiab txias coefficient ntawm zaus (TCF) <|-15ppm/°C|

· Ultra-wideband BAW resonators rau WiFi 6E/7 (5.925-7.125GHz)

2. Kev Sib Koom Ua Ke Photonics

· Cov modulators Mach-Zehnder ceev ceev (> 100Gbps) rau kev sib txuas lus optical sib xws

QWIP infrared detectors nrog cutoff wavelengths tunable los ntawm 3-14μm

3. Cov Khoom Siv Hluav Taws Xob Hauv Tsheb

· Ultrasonic parking sensors nrog >200kHz zaus ua haujlwm

· TPMS piezoelectric transducers uas muaj sia nyob -40 ° C txog 125 ° C thermal cycling

4. Cov Txheej Txheem Tiv Thaiv

· Cov lim dej txais EW nrog >60dB kev tsis lees txais sab nraud ntawm cov qhab

· Cov qhov rai IR nrhiav foob pob hluav taws xob xa 3-5μm MWIR hluav taws xob

5. Cov Txuj Ci Tshiab

· Cov khoom siv quantum transducers rau kev hloov pauv microwave-rau-optical

· PMUT arrays rau kev kho mob ultrasound imaging (> 20MHz kev daws teeb meem)

LiTaO₃ Wafers - XKH Services

1. Kev Tswj Xyuas Kev Muab Khoom

· Kev ua Boule-rau-wafer nrog 4-lub lim tiam ua ntej rau cov qauv txheem

· Kev tsim khoom zoo tshaj plaws uas muab 10-15% qhov zoo dua tus nqi piv rau cov neeg sib tw

2. Kev daws teeb meem tshwj xeeb

· Kev taw qhia tshwj xeeb rau kev wafering: 36 ° ± 0.5 ° Y-txiav rau kev ua haujlwm zoo tshaj plaws ntawm SAW

Cov khoom sib xyaw ua ke: MgO (5mol%) doping rau kev siv kho qhov muag

Cov kev pab cuam metallization: Cr/Au (100/1000Å) electrode patterning

3. Kev Txhawb Nqa Txog Kev Txawj Ntse

· Kev piav qhia txog cov khoom siv: XRD rocking curves (FWHM <0.01 °), AFM surface analysis

· Kev sim ua qauv ntawm lub cuab yeej: Kev ua qauv FEM rau kev tsim qauv lim dej SAW kom zoo dua

Xaus lus

LiTaO₃ wafers txuas ntxiv mus ua kom muaj kev nce qib hauv kev siv tshuab thoob plaws RF kev sib txuas lus, kev sib xyaw ua ke photonics, thiab cov sensors ib puag ncig hnyav. XKH txoj kev txawj ntse ntawm cov khoom siv, kev tsim khoom raug, thiab kev txhawb nqa kev siv engineering pab cov neeg siv khoom kov yeej cov teeb meem tsim qauv hauv cov kab ke hluav taws xob tiam tom ntej.