![\"T\u1ea5m](\"https:\/\/www.fuyao-quartz.com\/wp-content\/uploads\/2026\/03\/6inch-8inch-4H-SEMI-SiC-Substrate-for-AR-Glasses-Optical-Grade3-300x300.jpg\")
HPSI SiC wafers are widely used in:<\/strong><\/p>\n- \n
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AR Glasses and Optoelectronics: Transparent SiC supports optical components with minimal energy loss.<\/p>\n<\/li>\n
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High-Power Electronics: Ideal for inverters, power devices, and high-voltage applications.<\/p>\n<\/li>\n
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RF and Microwave Devices: Supports high-frequency operations, including 5G communications and radar.<\/p>\n<\/li>\n
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Extreme Environment Applications: Aerospace, automotive, military, and oil exploration where high temperature, high voltage, and radiation resistance are required.<\/p>\n<\/li>\n<\/ul>\n
The semi-insulating nature of HPSI SiC ensures low parasitic conduction, enhancing device performance and reliability in power and RF applications.<\/p>\n
Nh\u1eefng \u01b0u \u0111i\u1ec3m n\u1ed5i b\u1eadt
![\"T\u1ea5m](\"https:\/\/www.fuyao-quartz.com\/wp-content\/uploads\/2026\/03\/silicon_carbide_wafer_4inch_hpsi_350um_widely_used_for_ar_glasses-300x300.jpg\")
<\/h1>\n- \n
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Wide Bandgap (~3.2 eV): Enables high breakdown voltage, low leakage, and efficient energy conversion.<\/p>\n<\/li>\n
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High Thermal Conductivity: Efficient heat dissipation for high-power applications.<\/p>\n<\/li>\n
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High Breakdown Electric Field: Supports high-voltage device fabrication without material degradation.<\/p>\n<\/li>\n
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High Electron Mobility: Fast switching speeds for RF and power devices.<\/p>\n<\/li>\n
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Chemical and Mechanical Stability: Resistant to high temperatures, voltages, frequencies, and radiation, suitable for harsh environments.<\/p>\n<\/li>\n<\/ul>\n
Technical Specifications<\/h1>\n
\n\n\n\n
\n \nTham s\u1ed1<\/th>\n Th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt<\/th>\n<\/tr>\n<\/thead>\n \n Crystal Material<\/td>\n High-Purity Single-Crystal SiC<\/td>\n<\/tr>\n \n Type<\/td>\n HPSI (Semi-Insulating)<\/td>\n<\/tr>\n \n \u0110\u01b0\u1eddng k\u00ednh<\/td>\n 100 \u00b1 0.5 mm (4 inch)<\/td>\n<\/tr>\n \n \u0110\u1ed9 d\u00e0y<\/td>\n 350 \u03bcm \u00b1 15 \u03bcm (4H-N), 500 \u03bcm \u00b1 15 \u03bcm (4H-SI)<\/td>\n<\/tr>\n \n Wafer Orientation<\/td>\n Off-axis 4\u00b0 toward <11-20> (4H-N), On-axis <0001> \u00b10.5\u00b0 (4H-SI)<\/td>\n<\/tr>\n \n Resistivity<\/td>\n 4H-N: 0.015\u20130.024 \u03a9\u00b7cm; 4H-SI: \u22651\u00d710\u00b9\u2070 \u03a9\u00b7cm<\/td>\n<\/tr>\n \n Primary Flat Orientation<\/td>\n {10-10} \u00b15\u00b0<\/td>\n<\/tr>\n \n Primary Flat Length<\/td>\n 32.5 \u00b1 2 mm<\/td>\n<\/tr>\n \n Secondary Flat Orientation<\/td>\n Silicon face up, 90\u00b0 CW from primary flat \u00b15\u00b0<\/td>\n<\/tr>\n \n Edge Exclusion<\/td>\n 3 mm<\/td>\n<\/tr>\n \n Total Thickness Variation (TTV) \/ Bow \/ Warp<\/td>\n \u22645 \u03bcm \/ \u226415 \u03bcm \/ \u226430 \u03bcm (4H-N) ; \u226415 \u03bcm \/ \u226425 \u03bcm \/ \u226440 \u03bcm (4H-SI)<\/td>\n<\/tr>\n \n Surface Roughness<\/td>\n Polished Ra \u2264 1 nm; CMP Ra \u2264 0.2 nm<\/td>\n<\/tr>\n \n Edge & Surface Defects<\/td>\n No significant scratches; edge chips \u22641 mm (\u22645 allowed per wafer)<\/td>\n<\/tr>\n \n Packaging<\/td>\n Multi-wafer cassette or single wafer container, vacuum sealed<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n \u1ee8ng d\u1ee5ng<\/h1>\n
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Augmented Reality (AR) Glasses: Transparent HPSI SiC wafers for optical and electronic integration.<\/p>\n<\/li>\n
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Power Electronics: High-voltage inverters, converters, and energy-efficient devices.<\/p>\n<\/li>\n
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RF & Microwave Devices: Next-generation wireless communications, radar, and satellite components.<\/p>\n<\/li>\n
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Harsh Environment Electronics: Aerospace, automotive, military, and oil exploration.<\/p>\n<\/li>\n
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Strategic Industries: Solar energy, semiconductor lighting, smart grids\u2014reducing energy consumption and device size.<\/p>\n<\/li>\n<\/ol>\n
![\"T\u1ea5m](\"https:\/\/www.fuyao-quartz.com\/wp-content\/uploads\/2026\/03\/6inch_8inch_4h_semi_sic_substrate_for_ar_glasses_optical_grade2-300x300.jpg\")
\u0110\u1ea3m b\u1ea3o ch\u1ea5t l\u01b0\u1ee3ng<\/h1>\nFUYAO QUARTZ implements strict quality control including:<\/p>\n
- \n
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Dimensional verification and parallelism checks<\/p>\n<\/li>\n
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Electrical resistivity measurement<\/p>\n<\/li>\n
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Surface roughness and defect inspection<\/p>\n<\/li>\n
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Compliance with RoHS and international industry standards<\/p>\n<\/li>\n<\/ul>\n
These processes ensure high reliability and performance for high-power, high-frequency, and high-temperature applications.<\/p>\n
C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p<\/h1>\n
Q: What is a HPSI SiC wafer?
A: HPSI (High-Purity Semi-Insulating) SiC wafers are semiconductor substrates with very high resistivity, ideal for high-voltage, high-frequency, and optoelectronic applications.<\/p>\nQ: How does SiC differ from conventional silicon wafers?
A: Silicon wafers are low-cost and suitable for standard low-power electronics, whereas SiC wafers are next-generation substrates capable of operating under high voltage, high power, high temperature, and high-frequency conditions.<\/p>\nQ: What industries use SiC wafers?
A: Power electronics, RF\/microwave devices, optoelectronics (AR glasses), aerospace, automotive, military, and energy applications.<\/p>","protected":false},"excerpt":{"rendered":"FUYAO QUARTZ 4-inch HPSI silicon carbide (SiC) wafers are high-purity, semi-insulating substrates engineered for next-generation high-performance electronic devices. Silicon carbide, a compound of silicon and carbon, provides superior electrical, thermal, and mechanical properties compared to conventional silicon wafers.<\/p>","protected":false},"featured_media":2383,"comment_status":"open","ping_status":"closed","template":"","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"default","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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