{"title":"Specialty Materials","description":null,"products":[{"product_id":"amo-scientific-4-inch-c-plane-sapphire-wafer","title":"4 Inch C-Plane Sapphire Wafer – Single Crystal Al₂O₃, SSP\/DSP","description":"\u003ch2\u003e4 Inch C-Plane Sapphire Wafer – Single Crystal Al₂O₃, SSP\/DSP\u003c\/h2\u003e\n\u003cp class=\"PDq2pG_selectionAnchorContainer\"\u003e\u003cstrong\u003eAMO Scientific 4 Inch C-Plane Sapphire Wafers\u003c\/strong\u003e are high-purity (\u0026gt;99.99%) single-crystal Al₂O₃ substrates designed for semiconductor, thin-film, optical, and research applications. \u003c\/p\u003e\n\u003cp\u003eThe C-plane sapphire substrate offers excellent chemical stability, electrical insulation, mechanical hardness, thermal stability, and optical transparency.\u003c\/p\u003e\n\u003ch3 class=\"PDq2pG_selectionAnchorContainer\"\u003eTypical Applications\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eThin-film deposition\u003c\/li\u003e\n\u003cli\u003eSemiconductor research\u003c\/li\u003e\n\u003cli\u003eEpitaxial growth research\u003c\/li\u003e\n\u003cli\u003eOptical coatings\u003c\/li\u003e\n\u003cli\u003eLED and optoelectronic research\u003c\/li\u003e\n\u003cli\u003eMEMS and sensor research\u003c\/li\u003e\n\u003cli\u003e2D material growth\u003c\/li\u003e\n\u003cli\u003eHigh-temperature research\u003c\/li\u003e\n\u003cli\u003eOptical substrate applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cem\u003e\u003cstrong\u003eAMO Scientific offers customized sapphire wafers. If you don't find the standard products work for your need, please feel free to reach us. \u003c\/strong\u003e\u003c\/em\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ctable class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth class=\"\"\u003e\u003cstrong\u003eCategory\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth class=\"\"\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct SKU\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAMO-SA0107 (Single Side Polished, SSP), AMO-SA0108 (Double Sides Polished, DSP)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHigh Purity \u0026gt;99.99%, single crystal Al₂O₃\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDiameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e100.0 mm ± 0.10 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eThickness\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e650 µm ± 25 µm (SSP); 600 µm ± 25 µm (DSP), other thickness available upon request\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLattice Parameters\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ea = 4.785 Å, c = 12.991 Å\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDensity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3.98 g\/cm³\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOrientation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eC-plane (0001) to M (1-100), 0.2° ± 0.1° off \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePrimary Flat Orientation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eA-plane [11-20] ± 0.2°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePrimary Flat Length\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e30.0 ± 1.0 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTTV (Total Thickness Variation)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u0026lt; 5 µm (SSP), ≤ 6 µm (DSP)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBow\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-10 to 0 µm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWarp\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u0026lt; 10 µm (SSP), ≤ 20 µm (DSP)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eThermal Expansion Coefficient\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e6.66 × 10⁻⁶ \/°C (parallel to C-axis); 5 × 10⁻⁶ \/°C (perpendicular)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDielectric Strength\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4.8 × 10⁵ V\/cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDielectric Constant\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e11.5 (1 MHz, parallel to C-axis); 9.3 (1 MHz, perpendicular)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDielectric Loss Tangent\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u0026lt; 1 × 10⁻⁴\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eThermal Conductivity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e40 W\/(m·K) at 20°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"AMO Scientific","offers":[{"title":"Single Side Polished (SSP)\/650um","offer_id":42509020168274,"sku":"AMO-SA0107","price":82.0,"currency_code":"USD","in_stock":true},{"title":"Double Sides Polished (DSP)\/600um","offer_id":42509020201042,"sku":"AMO-SA0108","price":93.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0596\/3644\/9362\/files\/Sapphire_Wafer.png?v=1787243652"}],"url":"https:\/\/www.amoscientific.com\/collections\/specialty-materials.oembed","provider":"AMO Scientific","version":"1.0","type":"link"}