{"id":108469,"date":"2025-04-25T17:29:03","date_gmt":"2025-04-25T09:29:03","guid":{"rendered":"https:\/\/honwaygroup.com\/product\/diamond-substrate-diamond-wafer\/"},"modified":"2025-08-06T09:25:36","modified_gmt":"2025-08-06T01:25:36","slug":"diamond-substrate-diamond-wafer","status":"publish","type":"product","link":"https:\/\/honwaygroup.com\/en\/product\/diamond-substrate-diamond-wafer\/","title":{"rendered":"Diamond Substrate\/Diamond Wafer"},"content":{"rendered":"<h1>Diamond Substrate\/Diamond Wafer<\/h1>\n<h2><strong>Diamond Substrate\/Diamond Wafer<\/strong><\/h2>\n<h4><strong><span class=\"red\">Honway Materials provide customized services,<\/span><\/strong><\/h4>\n<h4><strong><span class=\"red\">Manufacturing the most suitable diamond substrate\/diamond wafer for you.<\/span><\/strong><\/h4>\n<p>&nbsp;<\/p>\n<h2>Product Features:<\/h2>\n<ul>\n<li>CVD diamond is manufactured using the Chemical Vapor Deposition method.<\/li>\n<li>Diamond possesses the highest thermal conductivity among all known materials, enabling effective and rapid heat dissipation.<\/li>\n<li>Possesses excellent wear resistance and damage resistance. Suitable for various high-durability applications, including precision cutting tools, industrial saw blades, and drilling equipment.<\/li>\n<li>Exhibits high transparency and low absorption across a broad wavelength range, making it an ideal material for optical windows, lenses, and high-performance optical components.<\/li>\n<li>Highly resistant to corrosion from acids, alkalis, and most chemical substances, maintaining stable performance for extended periods even in harsh chemical environments.<\/li>\n<li>Non-toxic and does not cause rejection reactions with human tissues, widely used in medical devices and implantable devices.<\/li>\n<\/ul>\n<h2>Application areas:<\/h2>\n<ul>\n<li class=\"\" data-start=\"45\" data-end=\"119\">\n<p class=\"\" data-start=\"48\" data-end=\"119\"><strong data-start=\"48\" data-end=\"63\">Thermal Interface Materials (TIMs)<\/strong>: Diamond wafers can be used as high-efficiency thermal interface materials between chips, modules, and heat sinks, effectively reducing thermal resistance, significantly improving thermal conductivity efficiency, and ensuring stable equipment operation.<\/p>\n<\/li>\n<li class=\"\" data-start=\"121\" data-end=\"199\">\n<p class=\"\" data-start=\"124\" data-end=\"199\"><strong data-start=\"124\" data-end=\"135\">Electronic Packaging and Substrates<\/strong>: In the semiconductor packaging field, diamond wafers provide excellent heat dissipation performance, supporting continuous operation of components in high power density environments, further promoting the miniaturization and high performance of electronic products.<\/p>\n<\/li>\n<li data-start=\"121\" data-end=\"199\"><strong>Server Applications<\/strong>: Can serve as an ideal heat spreader for high-power components such as GaN or SiC crystals, effectively reducing internal temperature rise, extending component lifespan, and improving system reliability. In addition, its excellent mechanical strength and high-temperature resistance are also very suitable for advanced packaging technologies such as 2.5D\/3D stacking and high-performance computing platforms in data centers.<\/li>\n<li class=\"\" data-start=\"201\" data-end=\"279\">\n<p class=\"\" data-start=\"204\" data-end=\"279\"><strong data-start=\"204\" data-end=\"216\">LED and Optoelectronic Components<\/strong>: Applied in fields such as LEDs and optoelectronic components, diamond wafers can significantly improve thermal management, extend component lifespan, and enhance luminous brightness and energy efficiency, meeting the demands of high-end optoelectronic applications.<\/p>\n<\/li>\n<li class=\"\" data-start=\"201\" data-end=\"279\">\n<p class=\"\" data-start=\"204\" data-end=\"279\"><span style=\"font-weight: 400;\"><strong>Insulation Substrates<\/strong>: CVD diamond wafers are used as insulation substrates for high-performance semiconductors. Their electrical insulation and high thermal conductivity make them ideal for power devices and RF (radio frequency) components. <\/span><\/p>\n<\/li>\n<li><span style=\"font-weight: 400;\"><strong>Medical Devices<\/strong>: Industrial-grade diamonds are also used in some medical fields, such as high-precision surgical instruments and dental drills. Due to diamond&#8217;s high hardness and wear resistance, it can improve the service life and accuracy of medical devices.<\/span><\/li>\n<\/ul>\n<h2>Product Specification:<\/h2>\n<table>\n<tbody>\n<tr>\n<td><strong>Grade<\/strong><\/td>\n<td><strong>Optical Grade<\/strong><\/td>\n<td><strong>Heat sink grade<\/strong><\/td>\n<\/tr>\n<tr>\n<td><strong>Diamond Type<\/strong><\/td>\n<td><span style=\"font-weight: 400;\">Monocrystalline<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Polycrystalline<\/span><\/td>\n<\/tr>\n<tr>\n<td><strong>Wafer size<\/strong><\/td>\n<td><span style=\"font-weight: 400;\">Maximum 15*15mm\u00b2<\/span><span style=\"font-weight: 400;\">, customizable<\/span><\/td>\n<td><span style=\"font-weight: 400;\">2 inches<\/span><span style=\"font-weight: 400;\">, customizable<\/span><\/td>\n<\/tr>\n<tr>\n<td><strong>Grit size<\/strong><\/td>\n<td><\/td>\n<td><span style=\"font-weight: 400;\">\u226410\u03bcm<\/span><\/td>\n<\/tr>\n<tr>\n<td><strong>Diameter tolerance<\/strong><\/td>\n<td><span style=\"font-weight: 400;\">\ufe620.1, -0mm<\/span><\/td>\n<td><span style=\"font-weight: 400;\">\ufe620.1, -0mm<\/span><\/td>\n<\/tr>\n<tr>\n<td><strong>Thickness<\/strong><\/td>\n<td><\/td>\n<td><span style=\"font-weight: 400;\">0.3-1.5mm<\/span><\/td>\n<\/tr>\n<tr>\n<td><strong>Thickness after polishing<\/strong><\/td>\n<td><span style=\"font-weight: 400;\">0.1~2mm<\/span><\/td>\n<td><span style=\"font-weight: 400;\">0.2-1.0mm<\/span><\/td>\n<\/tr>\n<tr>\n<td><strong>Thickness tolerance<\/strong><\/td>\n<td><span style=\"font-weight: 400;\">\u00b10.02mm\u226410mm<\/span><\/p>\n<p><span style=\"font-weight: 400;\"> \u00b10.03mm, 10~15mm<\/span><\/td>\n<td><span style=\"font-weight: 400;\">\u00b150\u03bcm<\/span><\/td>\n<\/tr>\n<tr>\n<td><strong>Crystallographic direction<\/strong><\/td>\n<td><span style=\"font-weight: 400;\">100<\/span><\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td><strong>Surfaece treatment-<\/strong><\/td>\n<td><span style=\"font-weight: 400;\">Polishing, Ra&lt;2nm<\/span><\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td><strong>Growth surface roughness<\/strong><\/td>\n<td><\/td>\n<td><span style=\"font-weight: 400;\">&lt;100nm Ra<\/span><\/td>\n<\/tr>\n<tr>\n<td><strong>Nucleation surface roughness<\/strong><\/td>\n<td><\/td>\n<td><span style=\"font-weight: 400;\">&lt;30nm Ra<\/span><\/td>\n<\/tr>\n<tr>\n<td><strong>Standard thickness<\/strong><\/td>\n<td><\/td>\n<td><span style=\"font-weight: 400;\">300\u03bcm<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><span style=\"font-weight: 400;\">\u203b If you have any customized needs, please <a style=\"font-size: 16px; background-color: #ffffff;\" href=\"https:\/\/honwaygroup.com\/en\/contact-honway\/\" target=\"_blank\" rel=\"nofollow noopener\">contact Honway<\/a><\/span><\/p>\n<h2><strong>Physical Properties:<\/strong><\/h2>\n<table>\n<tbody>\n<tr>\n<td><strong>Grade<\/strong><\/td>\n<td><strong>Optical Grade<\/strong><\/td>\n<td><strong>Heat sink grade<\/strong><\/td>\n<\/tr>\n<tr>\n<td><strong>Diamond Type<\/strong><\/td>\n<td><span style=\"font-weight: 400;\">Monocrystalline<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Polycrystalline<\/span><\/td>\n<\/tr>\n<tr>\n<td><strong>Density<\/strong><\/td>\n<td><span style=\"font-weight: 400;\">3.52 g\/cm3<\/span><\/td>\n<td><span style=\"font-weight: 400;\">3.52 g\/cm3<\/span><\/td>\n<\/tr>\n<tr>\n<td><strong>Raman full width at half maximum (FWHM)<\/strong><\/td>\n<td><span style=\"font-weight: 400;\">~2.1 cm\u207b\u00b9<\/span><\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td><strong>Nitrogen concentration<\/strong><\/td>\n<td><span style=\"font-weight: 400;\">&lt;0.5 ppm<\/span><\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td><strong>Thermal conductivity<\/strong><\/td>\n<td><span style=\"font-weight: 400;\">1900~2200 W\/(m\u00b7K) 300K<\/span><\/td>\n<td><span style=\"font-weight: 400;\">1200~2000 W\/(m\u00b7K) 300K<\/span><\/td>\n<\/tr>\n<tr>\n<td><strong>Transmittance<\/strong><\/td>\n<td><span style=\"font-weight: 400;\">&gt;70% 1064 nm<\/span><\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td><strong>Refractive Index<\/strong><\/td>\n<td><span style=\"font-weight: 400;\">2.379 @ 10.6 um<\/span><\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td><strong>Young&#8217;s modulus<\/strong><\/td>\n<td><\/td>\n<td><span style=\"font-weight: 400;\">850GPa<\/span><\/td>\n<\/tr>\n<tr>\n<td><strong>Chemical stability<\/strong><\/td>\n<td><\/td>\n<td><span style=\"font-weight: 400;\">Insoluble in all acids and bases<\/span><\/td>\n<\/tr>\n<tr>\n<td><strong>Breaking strength<\/strong><\/td>\n<td><\/td>\n<td><span style=\"font-weight: 400;\">350GPa<\/span><\/td>\n<\/tr>\n<tr>\n<td><strong>Parallelism<\/strong><\/td>\n<td><\/td>\n<td><span style=\"font-weight: 400;\">&lt;4\u03bcm\/cm<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<h2><strong>Diamond Specifications Comparison:<\/strong><\/h2>\n<table>\n<tbody>\n<tr>\n<td><\/td>\n<td>\n<p style=\"text-align: center;\"><strong>Monocrystalline CVD Diamond Wafer<\/strong><\/p>\n<\/td>\n<td>\n<p style=\"text-align: center;\"><strong>Polycrystalline CVD Diamond Wafer<\/strong><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td><strong>Structure<\/strong><\/td>\n<td><span style=\"font-weight: 400;\">Single, continuous crystal structure<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Multiple randomly oriented small crystals<\/span><\/td>\n<\/tr>\n<tr>\n<td><strong>Mechanical properties<\/strong><\/td>\n<td><span style=\"font-weight: 400;\">Excellent hardness, strength and wear resistance<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Low strength, affected by grain boundaries<\/span><\/td>\n<\/tr>\n<tr>\n<td><strong>Thermal conductivity<\/strong><\/td>\n<td><span style=\"font-weight: 400;\">Higher, excellent heat dissipation performance<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Lower (due to grain boundaries)<\/span><\/td>\n<\/tr>\n<tr>\n<td><strong>Optical properties<\/strong><\/td>\n<td><span style=\"font-weight: 400;\">Exceptional optical clarity and precision<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Low clarity, may have flaws<\/span><\/td>\n<\/tr>\n<tr>\n<td><strong>Electrical properties<\/strong><\/td>\n<td><span style=\"font-weight: 400;\">Highly controllable, direction dependent<\/span><\/td>\n<td><span style=\"font-weight: 400;\">High isotropy, low controllability<\/span><\/td>\n<\/tr>\n<tr>\n<td><strong>Application<\/strong><\/td>\n<td><span style=\"font-weight: 400;\">Electronics, optics, high performance applications<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Industrial tools, radiators, abrasives, heat dissipation materials<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<h2><strong>Performance comparison of diamond and other common infrared materials:<\/strong><\/h2>\n<table>\n<tbody>\n<tr>\n<td><strong>Physical Properties <\/strong><\/td>\n<td><strong>Unit<\/strong><\/td>\n<td colspan=\"2\"><strong>Diamond<\/strong><\/td>\n<td><strong>ZnSe<\/strong><\/td>\n<td><strong>ZnS<\/strong><\/td>\n<td><strong>Ge<\/strong><\/td>\n<td><strong>Si<\/strong><\/td>\n<td><strong>GaAs<\/strong><\/td>\n<td><strong>Al\u2082O\u2083<\/strong><\/td>\n<\/tr>\n<tr>\n<td><strong>Band <\/strong><strong>gap<\/strong><\/td>\n<td><span style=\"font-weight: 400;\">eV<\/span><\/td>\n<td colspan=\"2\"><span style=\"font-weight: 400;\">5.48<\/span><\/td>\n<td><span style=\"font-weight: 400;\">2.7<\/span><\/td>\n<td><span style=\"font-weight: 400;\">3.9<\/span><\/td>\n<td><span style=\"font-weight: 400;\">0.664<\/span><\/td>\n<td><span style=\"font-weight: 400;\">1.11<\/span><\/td>\n<td><span style=\"font-weight: 400;\">1.42<\/span><\/td>\n<td><span style=\"font-weight: 400;\">9.9<\/span><\/td>\n<\/tr>\n<tr>\n<td><strong>Cut-off<\/strong><strong> wavelength<\/strong><\/td>\n<td><span style=\"font-weight: 400;\">\u03bcm<\/span><\/td>\n<td colspan=\"2\"><\/td>\n<td><span style=\"font-weight: 400;\">20<\/span><\/td>\n<td><span style=\"font-weight: 400;\">14<\/span><\/td>\n<td><span style=\"font-weight: 400;\">23<\/span><\/td>\n<td><\/td>\n<td><\/td>\n<td><span style=\"font-weight: 400;\">5.5<\/span><\/td>\n<\/tr>\n<tr>\n<td><strong>Absorption<\/strong><strong> coefficient<\/strong> <\/td>\n<td><\/td>\n<td colspan=\"2\"><span style=\"font-weight: 400;\">0.1~0.3<\/span><\/td>\n<td><span style=\"font-weight: 400;\">0.005<\/span><\/td>\n<td><span style=\"font-weight: 400;\">0.2<\/span><\/td>\n<td><span style=\"font-weight: 400;\">0.02<\/span><\/td>\n<td><span style=\"font-weight: 400;\">0.35<\/span><\/td>\n<td><span style=\"font-weight: 400;\">0.01<\/span><\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td><strong>Absorption<\/strong><strong> coefficient<\/strong> <\/td>\n<td><span style=\"font-weight: 400;\">10.6 \u03bcm<\/span><\/td>\n<td colspan=\"2\"><span style=\"font-weight: 400;\">0.1~0.6<\/span><\/td>\n<td><span style=\"font-weight: 400;\">0.0005<\/span><\/td>\n<td><span style=\"font-weight: 400;\">0.2<\/span><\/td>\n<td><span style=\"font-weight: 400;\">0.02<\/span><\/td>\n<td><\/td>\n<td><\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td><strong>Micro<\/strong><strong>hardness<\/strong><\/td>\n<td><span style=\"font-weight: 400;\">kg\/mm\u00b2<\/span><\/td>\n<td colspan=\"2\"><span style=\"font-weight: 400;\">8300<\/span><\/td>\n<td><span style=\"font-weight: 400;\">137<\/span><\/td>\n<td><span style=\"font-weight: 400;\">230<\/span><\/td>\n<td><span style=\"font-weight: 400;\">780<\/span><\/td>\n<td><span style=\"font-weight: 400;\">1150<\/span><\/td>\n<td><span style=\"font-weight: 400;\">721<\/span><\/td>\n<td><span style=\"font-weight: 400;\">190<\/span><\/td>\n<\/tr>\n<tr>\n<td><strong>Refractive<\/strong> <strong>index<\/strong><\/td>\n<td><\/td>\n<td colspan=\"2\"><span style=\"font-weight: 400;\">2.38<\/span><\/td>\n<td><span style=\"font-weight: 400;\">2.40<\/span><\/td>\n<td><span style=\"font-weight: 400;\">2.19<\/span><\/td>\n<td><span style=\"font-weight: 400;\">4.00<\/span><\/td>\n<td><span style=\"font-weight: 400;\">3.42<\/span><\/td>\n<td><span style=\"font-weight: 400;\">3.28<\/span><\/td>\n<td><span style=\"font-weight: 400;\">1.63<\/span><\/td>\n<\/tr>\n<tr>\n<td><strong>dn\/dT<\/strong><\/td>\n<td><span style=\"font-weight: 400;\">10\u207b\u00b3\/K<\/span><\/td>\n<td colspan=\"2\"><span style=\"font-weight: 400;\">1.0<\/span><\/td>\n<td><span style=\"font-weight: 400;\">6.4<\/span><\/td>\n<td><span style=\"font-weight: 400;\">4.1<\/span><\/td>\n<td><span style=\"font-weight: 400;\">40<\/span><\/td>\n<td><span style=\"font-weight: 400;\">13<\/span><\/td>\n<td><span style=\"font-weight: 400;\">15<\/span><\/td>\n<td><span style=\"font-weight: 400;\">1.3<\/span><\/td>\n<\/tr>\n<tr>\n<td><strong>Thermal<\/strong> <strong>conductivity<\/strong><\/td>\n<td><span style=\"font-weight: 400;\">W\/(cm\u00b7K)<\/span><\/td>\n<td colspan=\"2\"><span style=\"font-weight: 400;\">18~22<\/span><\/td>\n<td><span style=\"font-weight: 400;\">0.19<\/span><\/td>\n<td><span style=\"font-weight: 400;\">0.27<\/span><\/td>\n<td><span style=\"font-weight: 400;\">0.59<\/span><\/td>\n<td><span style=\"font-weight: 400;\">1.63<\/span><\/td>\n<td><span style=\"font-weight: 400;\">0.55<\/span><\/td>\n<td><span style=\"font-weight: 400;\">0.35<\/span><\/td>\n<\/tr>\n<tr>\n<td rowspan=\"2\"><strong>Coefficient of thermal expansion<\/strong><\/td>\n<td rowspan=\"2\"><span style=\"font-weight: 400;\">10\u207b\u2076K\u207b\u00b9<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Optical Grade<\/span><\/td>\n<td><span style=\"font-weight: 400;\">1.3<\/span><\/td>\n<td rowspan=\"2\"><span style=\"font-weight: 400;\">7.6<\/span><\/td>\n<td rowspan=\"2\"><span style=\"font-weight: 400;\">7.9<\/span><\/td>\n<td rowspan=\"2\"><span style=\"font-weight: 400;\">5.9<\/span><\/td>\n<td rowspan=\"2\"><span style=\"font-weight: 400;\">2.56<\/span><\/td>\n<td rowspan=\"2\"><span style=\"font-weight: 400;\">5.9<\/span><\/td>\n<td rowspan=\"2\"><span style=\"font-weight: 400;\">5.8<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Heat sink grade<\/span><\/td>\n<td><span style=\"font-weight: 400;\">0.8~1.0<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<p><span style=\"font-size: 16px;\">Any questions? <\/span><a style=\"font-size: 16px; background-color: #ffffff;\" href=\"https:\/\/honwaygroup.com\/en\/contact-honway\/\" target=\"_blank\" rel=\"nofollow noopener\">Contact HonWay<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<ul>\n<li>CVD diamond is manufactured using the Chemical Vapor Deposition method.<\/li>\n<li>Diamond possesses the highest thermal conductivity among all known materials, enabling effective and rapid heat dissipation.<\/li>\n<li>Suitable for various precision cutting tools, industrial saw blades and drilling equipment, optical windows, lenses, high-performance optical components, chemical industry, medical devices, and implantable devices.<\/li>\n<\/ul>\n<h5><span style=\"color: #ff0000;\"><strong>\u25b2Prices include tax for Taiwan orders only; international orders are subject to customs duties.<\/strong><\/span><\/h5>\n<h5><strong><span style=\"color: #ff0000; font-size: 19.2px;\">\u25b2<\/span><\/strong><strong><span style=\"color: #ff0000; font-size: 19.2px;\">For custom sizes, please contact customer service. The shipping date is based on the time informed by customer service.<\/span><\/strong><\/h5>\n<h5><strong><span style=\"color: #ff0000; font-size: 19.2px;\">\u25b2 Preferential discounts can be enjoyed for large orders, please contact customer service.<\/span><\/strong><\/h5>\n<h5><strong><span style=\"color: #ff0000; font-size: 19.2px;\">\u25b2<\/span><span style=\"color: #ff0000; font-size: 19.2px;\">Please contact customer service for order delivery date<\/span><span style=\"color: #ff0000; font-size: 19.2px;\"><a href=\"https:\/\/honwaygroup.com\/en\/contact-honway\/\">: Contact Honway<\/a><\/span><\/strong><\/h5>\n","protected":false},"featured_media":121108,"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":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center 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