{"id":2243,"date":"2026-04-15T05:38:35","date_gmt":"2026-04-15T05:38:35","guid":{"rendered":"https:\/\/www.zmsh-semitech.com\/?post_type=product&#038;p=2243"},"modified":"2026-04-15T05:38:37","modified_gmt":"2026-04-15T05:38:37","slug":"12-inch-sapphire-wafer-al%e2%82%82o%e2%82%83-for-led-semiconductor-epitaxial-growth","status":"publish","type":"product","link":"https:\/\/www.zmsh-semitech.com\/fi\/product\/12-inch-sapphire-wafer-al%e2%82%82o%e2%82%83-for-led-semiconductor-epitaxial-growth\/","title":{"rendered":"12-tuumainen safiirikiekko (Al\u2082O\u2083) LED-, puolijohde- ja epitaksikasvatukseen"},"content":{"rendered":"<p data-start=\"365\" data-end=\"715\"><img fetchpriority=\"high\" decoding=\"async\" class=\"alignright wp-image-2245 size-medium\" src=\"https:\/\/www.zmsh-semitech.com\/wp-content\/uploads\/2026\/04\/12-inch-Sapphire-Wafer-Al\u2082O\u2083-for-LED-Semiconductor-Epitaxial-Growth-1-300x300.jpg\" alt=\"12-inch Sapphire Wafer (Al\u2082O\u2083) for LED, Semiconductor &amp; Epitaxial Growth\" width=\"300\" height=\"300\" srcset=\"https:\/\/www.zmsh-semitech.com\/wp-content\/uploads\/2026\/04\/12-inch-Sapphire-Wafer-Al\u2082O\u2083-for-LED-Semiconductor-Epitaxial-Growth-1-300x300.jpg 300w, https:\/\/www.zmsh-semitech.com\/wp-content\/uploads\/2026\/04\/12-inch-Sapphire-Wafer-Al\u2082O\u2083-for-LED-Semiconductor-Epitaxial-Growth-1-150x150.jpg 150w, https:\/\/www.zmsh-semitech.com\/wp-content\/uploads\/2026\/04\/12-inch-Sapphire-Wafer-Al\u2082O\u2083-for-LED-Semiconductor-Epitaxial-Growth-1-768x768.jpg 768w, https:\/\/www.zmsh-semitech.com\/wp-content\/uploads\/2026\/04\/12-inch-Sapphire-Wafer-Al\u2082O\u2083-for-LED-Semiconductor-Epitaxial-Growth-1-12x12.jpg 12w, https:\/\/www.zmsh-semitech.com\/wp-content\/uploads\/2026\/04\/12-inch-Sapphire-Wafer-Al\u2082O\u2083-for-LED-Semiconductor-Epitaxial-Growth-1-600x600.jpg 600w, https:\/\/www.zmsh-semitech.com\/wp-content\/uploads\/2026\/04\/12-inch-Sapphire-Wafer-Al\u2082O\u2083-for-LED-Semiconductor-Epitaxial-Growth-1-100x100.jpg 100w, https:\/\/www.zmsh-semitech.com\/wp-content\/uploads\/2026\/04\/12-inch-Sapphire-Wafer-Al\u2082O\u2083-for-LED-Semiconductor-Epitaxial-Growth-1.jpg 800w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/>The 12-inch sapphire wafer is a high-performance single-crystal aluminum oxide (Al\u2082O\u2083) substrate engineered for advanced semiconductor, optoelectronic, and high-temperature applications. It is manufactured from ultra-high purity sapphire crystal with a purity level of \u226599.99%, ensuring excellent structural uniformity and low defect density.<\/p>\n<p data-start=\"759\" data-end=\"1120\">Sapphire is widely recognized for its exceptional mechanical hardness, chemical stability, and optical transparency, making it one of the most reliable substrate materials for extreme environments. The 12-inch format represents a high-end industrial-scale wafer size, designed for mass production of LED epitaxial layers and advanced electronic devices.<\/p>\n<p data-start=\"1122\" data-end=\"1313\">Unlike silicon, sapphire is an electrical insulator, which makes it particularly suitable for applications requiring high-frequency isolation, thermal stability, and optical transparency.<\/p>\n<hr data-start=\"1315\" data-end=\"1318\" \/>\n<h2 data-section-id=\"ojepy8\" data-start=\"1320\" data-end=\"1351\"><span role=\"text\">\u00a0<img decoding=\"async\" class=\"size-medium wp-image-2248 alignright\" src=\"https:\/\/www.zmsh-semitech.com\/wp-content\/uploads\/2026\/04\/12-inch-Sapphire-Wafer-Al\u2082O\u2083-for-LED-Semiconductor-Epitaxial-Growth-3-1-300x300.jpg\" alt=\"\" width=\"300\" height=\"300\" srcset=\"https:\/\/www.zmsh-semitech.com\/wp-content\/uploads\/2026\/04\/12-inch-Sapphire-Wafer-Al\u2082O\u2083-for-LED-Semiconductor-Epitaxial-Growth-3-1-300x300.jpg 300w, https:\/\/www.zmsh-semitech.com\/wp-content\/uploads\/2026\/04\/12-inch-Sapphire-Wafer-Al\u2082O\u2083-for-LED-Semiconductor-Epitaxial-Growth-3-1-150x150.jpg 150w, https:\/\/www.zmsh-semitech.com\/wp-content\/uploads\/2026\/04\/12-inch-Sapphire-Wafer-Al\u2082O\u2083-for-LED-Semiconductor-Epitaxial-Growth-3-1-12x12.jpg 12w, https:\/\/www.zmsh-semitech.com\/wp-content\/uploads\/2026\/04\/12-inch-Sapphire-Wafer-Al\u2082O\u2083-for-LED-Semiconductor-Epitaxial-Growth-3-1-600x600.jpg 600w, https:\/\/www.zmsh-semitech.com\/wp-content\/uploads\/2026\/04\/12-inch-Sapphire-Wafer-Al\u2082O\u2083-for-LED-Semiconductor-Epitaxial-Growth-3-1-100x100.jpg 100w, https:\/\/www.zmsh-semitech.com\/wp-content\/uploads\/2026\/04\/12-inch-Sapphire-Wafer-Al\u2082O\u2083-for-LED-Semiconductor-Epitaxial-Growth-3-1.jpg 680w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/>Material Characteristics<\/span><\/h2>\n<p data-start=\"1353\" data-end=\"1450\">Sapphire (\u03b1-Al\u2082O\u2083) is a single-crystal material with a unique combination of physical properties:<\/p>\n<ul data-start=\"1452\" data-end=\"1753\">\n<li data-section-id=\"1spvf2o\" data-start=\"1452\" data-end=\"1488\">Extremely high hardness (Mohs 9)<\/li>\n<li data-section-id=\"4u0l41\" data-start=\"1489\" data-end=\"1564\">Excellent resistance to thermal shock and high-temperature environments<\/li>\n<li data-section-id=\"c2l800\" data-start=\"1565\" data-end=\"1625\">Outstanding chemical inertness against acids and alkalis<\/li>\n<li data-section-id=\"1khka8y\" data-start=\"1626\" data-end=\"1698\">Wide optical transmission range (UV to mid-infrared after polishing)<\/li>\n<li data-section-id=\"quzdk\" data-start=\"1699\" data-end=\"1753\">High dielectric strength and electrical insulation<\/li>\n<\/ul>\n<p data-start=\"1755\" data-end=\"1897\">These properties make sapphire wafers a preferred choice in LED manufacturing, RF devices, laser systems, and aerospace-grade electronics.<\/p>\n<h2 data-section-id=\"ievvp6\" data-start=\"1904\" data-end=\"1938\"><span role=\"text\"><img decoding=\"async\" class=\"size-medium wp-image-2247 alignright\" src=\"https:\/\/www.zmsh-semitech.com\/wp-content\/uploads\/2026\/04\/12-inch-Sapphire-Wafer-Al\u2082O\u2083-for-LED-Semiconductor-Epitaxial-Growth-4-300x300.jpg\" alt=\"\" width=\"300\" height=\"300\" srcset=\"https:\/\/www.zmsh-semitech.com\/wp-content\/uploads\/2026\/04\/12-inch-Sapphire-Wafer-Al\u2082O\u2083-for-LED-Semiconductor-Epitaxial-Growth-4-300x300.jpg 300w, https:\/\/www.zmsh-semitech.com\/wp-content\/uploads\/2026\/04\/12-inch-Sapphire-Wafer-Al\u2082O\u2083-for-LED-Semiconductor-Epitaxial-Growth-4-150x150.jpg 150w, https:\/\/www.zmsh-semitech.com\/wp-content\/uploads\/2026\/04\/12-inch-Sapphire-Wafer-Al\u2082O\u2083-for-LED-Semiconductor-Epitaxial-Growth-4-12x12.jpg 12w, https:\/\/www.zmsh-semitech.com\/wp-content\/uploads\/2026\/04\/12-inch-Sapphire-Wafer-Al\u2082O\u2083-for-LED-Semiconductor-Epitaxial-Growth-4-600x600.jpg 600w, https:\/\/www.zmsh-semitech.com\/wp-content\/uploads\/2026\/04\/12-inch-Sapphire-Wafer-Al\u2082O\u2083-for-LED-Semiconductor-Epitaxial-Growth-4-100x100.jpg 100w, https:\/\/www.zmsh-semitech.com\/wp-content\/uploads\/2026\/04\/12-inch-Sapphire-Wafer-Al\u2082O\u2083-for-LED-Semiconductor-Epitaxial-Growth-4.jpg 660w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/>Polishing &amp; Surface Quality<\/span><\/h2>\n<p data-start=\"1940\" data-end=\"2108\">This product supports both DSP (Double-Side Polishing) and SSP (Single-Side Polishing) processes, ensuring flexibility for different manufacturing requirements.<\/p>\n<ul data-start=\"2110\" data-end=\"2358\">\n<li data-section-id=\"1fpepz1\" data-start=\"2110\" data-end=\"2162\">Front surface: Epi-ready polishing (Ra &lt; 0.3 nm)<\/li>\n<li data-section-id=\"bdp6ps\" data-start=\"2163\" data-end=\"2231\">Back surface: Lapped or semi-polished depending on specification<\/li>\n<li data-section-id=\"df2v4y\" data-start=\"2232\" data-end=\"2287\">Surface cleanliness: Class 100 cleanroom processing<\/li>\n<li data-section-id=\"19b95b4\" data-start=\"2288\" data-end=\"2358\">Contamination control: ultra-low particle and metal residue levels<\/li>\n<\/ul>\n<div class=\"no-scrollbar flex min-h-36 flex-nowrap gap-0.5 overflow-auto sm:gap-1 sm:overflow-hidden xl:min-h-44 mt-1 mb-5 [&amp;:not(:first-child)]:mt-4\">\n<div class=\"border-token-border-default relative w-32 shrink-0 overflow-hidden rounded-xl border-[0.5px] md:shrink max-h-64 sm:w-[calc((100%-0.5rem)\/3)]\">\n<div class=\"group\/search-image @container\/search-image relative rounded-[inherit] h-full w-full\"><\/div>\n<\/div>\n<div class=\"border-token-border-default relative w-32 shrink-0 overflow-hidden rounded-xl border-[0.5px] md:shrink max-h-64 sm:w-[calc((100%-0.5rem)\/3)] rounded-e-xl\">\n<div class=\"group\/search-image @container\/search-image relative rounded-[inherit] h-full w-full\">\n<div class=\"pointer-events-none absolute inset-x-2 bottom-2 z-0 flex max-w-[calc(100%-1rem)] flex-wrap items-end justify-end gap-1.5\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<p data-start=\"2402\" data-end=\"2579\">These surface qualities are critical for epitaxial growth processes such as MOCVD, MBE, and PECVD, where atomic-level surface uniformity directly impacts device performance.<\/p>\n<hr data-start=\"2581\" data-end=\"2584\" \/>\n<h2 data-section-id=\"id1bjs\" data-start=\"2586\" data-end=\"2617\"><span role=\"text\">Technical Specifications<\/span><\/h2>\n<div class=\"TyagGW_tableContainer\">\n<div class=\"group TyagGW_tableWrapper flex flex-col-reverse w-fit\" tabindex=\"-1\">\n<table class=\"w-fit min-w-(--thread-content-width)\" data-start=\"2619\" data-end=\"3135\">\n<thead data-start=\"2619\" data-end=\"2648\">\n<tr data-start=\"2619\" data-end=\"2648\">\n<th class=\"\" data-start=\"2619\" data-end=\"2631\" data-col-size=\"sm\">Parameter<\/th>\n<th class=\"\" data-start=\"2631\" data-end=\"2648\" data-col-size=\"md\">Specification<\/th>\n<\/tr>\n<\/thead>\n<tbody data-start=\"2677\" data-end=\"3135\">\n<tr data-start=\"2677\" data-end=\"2732\">\n<td data-start=\"2677\" data-end=\"2688\" data-col-size=\"sm\">Material<\/td>\n<td data-col-size=\"md\" data-start=\"2688\" data-end=\"2732\">Single-crystal sapphire (Al\u2082O\u2083 \u2265 99.99%)<\/td>\n<\/tr>\n<tr data-start=\"2733\" data-end=\"2771\">\n<td data-start=\"2733\" data-end=\"2744\" data-col-size=\"sm\">Diameter<\/td>\n<td data-col-size=\"md\" data-start=\"2744\" data-end=\"2771\">2\u201d \u2013 12\u201d (customizable)<\/td>\n<\/tr>\n<tr data-start=\"2772\" data-end=\"2804\">\n<td data-start=\"2772\" data-end=\"2788\" data-col-size=\"sm\">12\u201d Thickness<\/td>\n<td data-start=\"2788\" data-end=\"2804\" data-col-size=\"md\">3000 \u00b1 20 \u03bcm<\/td>\n<\/tr>\n<tr data-start=\"2805\" data-end=\"2864\">\n<td data-start=\"2805\" data-end=\"2819\" data-col-size=\"sm\">Orientation<\/td>\n<td data-col-size=\"md\" data-start=\"2819\" data-end=\"2864\">C-plane (0001), A-plane, M-plane, R-plane<\/td>\n<\/tr>\n<tr data-start=\"2865\" data-end=\"2890\">\n<td data-start=\"2865\" data-end=\"2877\" data-col-size=\"sm\">DSP \/ SSP<\/td>\n<td data-col-size=\"md\" data-start=\"2877\" data-end=\"2890\">Available<\/td>\n<\/tr>\n<tr data-start=\"2891\" data-end=\"2928\">\n<td data-start=\"2891\" data-end=\"2908\" data-col-size=\"sm\">OF Orientation<\/td>\n<td data-col-size=\"md\" data-start=\"2908\" data-end=\"2928\">a-plane 0 \u00b1 0.3\u00b0<\/td>\n<\/tr>\n<tr data-start=\"2929\" data-end=\"2956\">\n<td data-start=\"2929\" data-end=\"2935\" data-col-size=\"sm\">TTV<\/td>\n<td data-start=\"2935\" data-end=\"2956\" data-col-size=\"md\">\u2264 15 \u03bcm (12 inch)<\/td>\n<\/tr>\n<tr data-start=\"2957\" data-end=\"2987\">\n<td data-start=\"2957\" data-end=\"2963\" data-col-size=\"sm\">BOW<\/td>\n<td data-start=\"2963\" data-end=\"2987\" data-col-size=\"md\">-25 ~ 0 \u03bcm (12 inch)<\/td>\n<\/tr>\n<tr data-start=\"2988\" data-end=\"3006\">\n<td data-start=\"2988\" data-end=\"2995\" data-col-size=\"sm\">Warp<\/td>\n<td data-col-size=\"md\" data-start=\"2995\" data-end=\"3006\">\u2264 30 \u03bcm<\/td>\n<\/tr>\n<tr data-start=\"3007\" data-end=\"3050\">\n<td data-start=\"3007\" data-end=\"3023\" data-col-size=\"sm\">Front Surface<\/td>\n<td data-col-size=\"md\" data-start=\"3023\" data-end=\"3050\">Epi-ready (Ra &lt; 0.3 nm)<\/td>\n<\/tr>\n<tr data-start=\"3051\" data-end=\"3092\">\n<td data-start=\"3051\" data-end=\"3066\" data-col-size=\"sm\">Back Surface<\/td>\n<td data-col-size=\"md\" data-start=\"3066\" data-end=\"3092\">Lapped (Ra 0.6\u20131.2 \u03bcm)<\/td>\n<\/tr>\n<tr data-start=\"3093\" data-end=\"3135\">\n<td data-start=\"3093\" data-end=\"3105\" data-col-size=\"sm\">Packaging<\/td>\n<td data-start=\"3105\" data-end=\"3135\" data-col-size=\"md\">Cleanroom vacuum packaging<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<hr data-start=\"3137\" data-end=\"3140\" \/>\n<h2 data-section-id=\"1j5qwet\" data-start=\"3142\" data-end=\"3161\"><span role=\"text\"><img loading=\"lazy\" decoding=\"async\" class=\" wp-image-2244 alignright\" src=\"https:\/\/www.zmsh-semitech.com\/wp-content\/uploads\/2026\/04\/12-inch-Sapphire-Wafer-Al\u2082O\u2083-for-LED-Semiconductor-Epitaxial-Growth-2-300x300.jpg\" alt=\"\" width=\"236\" height=\"236\" srcset=\"https:\/\/www.zmsh-semitech.com\/wp-content\/uploads\/2026\/04\/12-inch-Sapphire-Wafer-Al\u2082O\u2083-for-LED-Semiconductor-Epitaxial-Growth-2-300x300.jpg 300w, https:\/\/www.zmsh-semitech.com\/wp-content\/uploads\/2026\/04\/12-inch-Sapphire-Wafer-Al\u2082O\u2083-for-LED-Semiconductor-Epitaxial-Growth-2-150x150.jpg 150w, https:\/\/www.zmsh-semitech.com\/wp-content\/uploads\/2026\/04\/12-inch-Sapphire-Wafer-Al\u2082O\u2083-for-LED-Semiconductor-Epitaxial-Growth-2-768x768.jpg 768w, https:\/\/www.zmsh-semitech.com\/wp-content\/uploads\/2026\/04\/12-inch-Sapphire-Wafer-Al\u2082O\u2083-for-LED-Semiconductor-Epitaxial-Growth-2-12x12.jpg 12w, https:\/\/www.zmsh-semitech.com\/wp-content\/uploads\/2026\/04\/12-inch-Sapphire-Wafer-Al\u2082O\u2083-for-LED-Semiconductor-Epitaxial-Growth-2-600x600.jpg 600w, https:\/\/www.zmsh-semitech.com\/wp-content\/uploads\/2026\/04\/12-inch-Sapphire-Wafer-Al\u2082O\u2083-for-LED-Semiconductor-Epitaxial-Growth-2-100x100.jpg 100w, https:\/\/www.zmsh-semitech.com\/wp-content\/uploads\/2026\/04\/12-inch-Sapphire-Wafer-Al\u2082O\u2083-for-LED-Semiconductor-Epitaxial-Growth-2.jpg 800w\" sizes=\"(max-width: 236px) 100vw, 236px\" \/>Key Features<\/span><\/h2>\n<ul data-start=\"3163\" data-end=\"3544\">\n<li data-section-id=\"pjnxki\" data-start=\"3163\" data-end=\"3225\">Ultra-large 12-inch semiconductor-grade sapphire substrate<\/li>\n<li data-section-id=\"qr2j3g\" data-start=\"3226\" data-end=\"3272\">High purity single-crystal Al\u2082O\u2083 (\u226599.99%)<\/li>\n<li data-section-id=\"nf8tmh\" data-start=\"3273\" data-end=\"3315\">Supports DSP and SSP polishing options<\/li>\n<li data-section-id=\"yxl3dv\" data-start=\"3316\" data-end=\"3368\">Multiple crystallographic orientations available<\/li>\n<li data-section-id=\"14fh0df\" data-start=\"3369\" data-end=\"3426\">Excellent thermal stability and mechanical durability<\/li>\n<li data-section-id=\"1mw9xq6\" data-start=\"3427\" data-end=\"3475\">Ultra-low contamination cleanroom processing<\/li>\n<li data-section-id=\"498ln5\" data-start=\"3476\" data-end=\"3544\">Suitable for high-end epitaxial growth and research applications<\/li>\n<\/ul>\n<hr data-start=\"3546\" data-end=\"3549\" \/>\n<h2 data-section-id=\"k0zlak\" data-start=\"3551\" data-end=\"3570\"><span role=\"text\">Applications<\/span><\/h2>\n<div class=\"no-scrollbar flex min-h-36 flex-nowrap gap-0.5 overflow-auto sm:gap-1 sm:overflow-hidden xl:min-h-44 mt-1 mb-5 [&amp;:not(:first-child)]:mt-4\">\n<div class=\"border-token-border-default relative w-32 shrink-0 overflow-hidden rounded-xl border-[0.5px] md:shrink max-h-64 sm:w-[calc((100%-0.5rem)\/3)] rounded-s-xl\">\n<div class=\"group\/search-image @container\/search-image relative rounded-[inherit] h-full w-full\"><\/div>\n<\/div>\n<\/div>\n<h3 data-section-id=\"1umceew\" data-start=\"3614\" data-end=\"3657\"><span role=\"text\">LED &amp; Optoelectronics Manufacturing<\/span><\/h3>\n<p data-start=\"3658\" data-end=\"3793\">C-plane sapphire wafers are widely used as substrates for GaN-based LED production, including blue, white, UV, and deep-UV devices.<\/p>\n<h3 data-section-id=\"1hfhdt5\" data-start=\"3795\" data-end=\"3833\"><span role=\"text\">Semiconductor Epitaxial Growth<\/span><\/h3>\n<p data-start=\"3834\" data-end=\"3880\">Supports advanced epitaxial processes such as:<\/p>\n<ul data-start=\"3881\" data-end=\"3997\">\n<li data-section-id=\"14ku9of\" data-start=\"3881\" data-end=\"3932\">MOCVD (Metal-Organic Chemical Vapor Deposition)<\/li>\n<li data-section-id=\"150f9ia\" data-start=\"3933\" data-end=\"3965\">MBE (Molecular Beam Epitaxy)<\/li>\n<li data-section-id=\"vh90cd\" data-start=\"3966\" data-end=\"3997\">PECVD (Plasma-Enhanced CVD)<\/li>\n<\/ul>\n<h3 data-section-id=\"17id26w\" data-start=\"3999\" data-end=\"4034\"><span role=\"text\">RF &amp; High-Frequency Devices<\/span><\/h3>\n<p data-start=\"4035\" data-end=\"4150\">Used in heterojunction bipolar transistors (HBTs), laser diodes (LDs), and high-frequency communication components.<\/p>\n<h3 data-section-id=\"aqrsz\" data-start=\"4152\" data-end=\"4183\"><span role=\"text\">UV &amp; Laser Applications<\/span><\/h3>\n<p data-start=\"4184\" data-end=\"4283\">Sapphire substrates are suitable for UV detectors, laser windows, and photonic integration systems.<\/p>\n<h3 data-section-id=\"1tinrfc\" data-start=\"4285\" data-end=\"4321\"><span role=\"text\">High-Temperature Electronics<\/span><\/h3>\n<p data-start=\"4322\" data-end=\"4413\">Used as heat-resistant insulating substrates in high-power and high-frequency environments.<\/p>\n<hr data-start=\"4415\" data-end=\"4418\" \/>\n<h2 data-section-id=\"lalgo8\" data-start=\"4420\" data-end=\"4448\"><span role=\"text\">Customization Options<\/span><\/h2>\n<p data-start=\"4450\" data-end=\"4538\">We provide flexible customization services for research and industrial production needs:<\/p>\n<ul data-start=\"4540\" data-end=\"4831\">\n<li data-section-id=\"itarb5\" data-start=\"4540\" data-end=\"4581\">Diameter: 1\u201d, 2\u201d, 3\u201d, 4\u201d, 6\u201d, 8\u201d, 12\u201d<\/li>\n<li data-section-id=\"zg9g0k\" data-start=\"4582\" data-end=\"4644\">Crystal orientation: C-plane \/ A-plane \/ M-plane \/ R-plane<\/li>\n<li data-section-id=\"1isa4cd\" data-start=\"4645\" data-end=\"4679\">Off-angle adjustment available<\/li>\n<li data-section-id=\"1c2k10x\" data-start=\"4680\" data-end=\"4719\">DSP \/ SSP surface treatment options<\/li>\n<li data-section-id=\"1npalia\" data-start=\"4720\" data-end=\"4754\">Thickness and TTV optimization<\/li>\n<li data-section-id=\"afvzgc\" data-start=\"4755\" data-end=\"4786\">Edge shaping and chamfering<\/li>\n<li data-section-id=\"1336vh1\" data-start=\"4787\" data-end=\"4831\">Custom packaging (single wafer \/ cassette)<\/li>\n<\/ul>\n<p data-start=\"4833\" data-end=\"4943\">Each wafer is traceable with a unique serial number to ensure quality control and production traceability.<\/p>\n<hr data-start=\"4945\" data-end=\"4948\" \/>\n<h2 data-section-id=\"elc90z\" data-start=\"4950\" data-end=\"4960\"><span role=\"text\">FAQ<\/span><\/h2>\n<p data-start=\"4962\" data-end=\"5195\">Q1: What is the main advantage of sapphire wafers over silicon wafers?<br data-start=\"5036\" data-end=\"5039\" \/>Sapphire is transparent and electrically insulating, making it ideal for LED and optical applications, while silicon is mainly used for electronic circuits.<\/p>\n<p data-start=\"5197\" data-end=\"5391\">Q2: Why is 12-inch sapphire wafer important?<br data-start=\"5245\" data-end=\"5248\" \/>It supports large-scale industrial LED and semiconductor production, improving efficiency and reducing per-unit cost in mass manufacturing.<\/p>\n<p data-start=\"5393\" data-end=\"5568\">Q3: What does DSP and SSP mean?<br data-start=\"5428\" data-end=\"5431\" \/>DSP refers to Double-Side Polishing, while SSP refers to Single-Side Polishing. These affect surface quality and application suitability.<\/p>\n<p data-start=\"5570\" data-end=\"5744\">Q4: Can sapphire wafers be used directly for devices?<br data-start=\"5627\" data-end=\"5630\" \/>They are used as substrates and require epitaxial growth or additional processing before final device fabrication.<\/p>\n<p data-start=\"5746\" data-end=\"5894\">Q5: Why is sapphire used in LEDs?<br data-start=\"5783\" data-end=\"5786\" \/>Because it provides a stable lattice structure for GaN growth and excellent thermal and optical performance.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>12-tuumainen safiirikiekko on eritt\u00e4in suorituskykyinen yksikiteinen alumiinioksidialusta (Al\u2082O\u2083), joka on suunniteltu kehittyneisiin puolijohde-, optoelektroniikka- ja korkean l\u00e4mp\u00f6tilan sovelluksiin. Se valmistetaan eritt\u00e4in puhtaasta safiirikiteest\u00e4, jonka puhtausaste on \u226599,99%, mik\u00e4 takaa erinomaisen rakenteellisen tasalaatuisuuden ja alhaisen vikatiheyden.<\/p>","protected":false},"featured_media":2246,"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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