{"id":2536,"date":"2026-06-08T05:27:34","date_gmt":"2026-06-08T05:27:34","guid":{"rendered":"https:\/\/www.zmsh-semitech.com\/?post_type=product&p=2536"},"modified":"2026-06-09T16:52:06","modified_gmt":"2026-06-09T16:52:06","slug":"12-inch-glass-wafer-for-advanced-semiconductor-mems-applications","status":"publish","type":"product","link":"https:\/\/www.zmsh-semitech.com\/cs\/product\/12-inch-glass-wafer-for-advanced-semiconductor-mems-applications\/","title":{"rendered":"12-Inch Glass Wafer for Advanced Semiconductor & MEMS Applications"},"content":{"rendered":"

\"12-InchThe 12-inch (300mm) glass wafer is a high-end substrate designed for advanced semiconductor manufacturing, MEMS devices, optical systems, and wafer-level packaging (WLP \/ FOWLP). As device integration continues to increase and packaging structures become more complex, large-diameter glass wafers are becoming a critical alternative to traditional silicon substrates.<\/p>\n

Compared with smaller wafer formats, 12-inch glass wafers offer significantly higher production efficiency, better scalability for mass production, and compatibility with advanced lithography and packaging processes. They are widely used in next-generation electronic systems that require high dimensional stability, low dielectric loss, excellent optical transparency, and ultra-smooth surface quality.<\/p>\n

These wafers are manufactured using high-purity materials such as borosilicate glass, fused silica, quartz, and alkaline-free glass, depending on application requirements. Each wafer undergoes precision cutting, grinding, polishing, and cleaning processes to ensure strict control over flatness, thickness uniformity, and surface roughness.<\/p>\n

\n

Available Material Types for 12-Inch Glass Wafer<\/strong><\/span><\/h2>\n

Borosilicate Glass (12-inch wafer)<\/strong><\/span><\/h3>\n
    \n
  • Excellent thermal expansion matching with silicon (~3.2 ppm\/K)<\/li>\n
  • Ideal for anodic bonding applications<\/li>\n
  • High chemical resistance<\/li>\n
  • Stable mechanical properties during thermal cycling<\/li>\n
  • Widely used in MEMS and packaging structures<\/li>\n<\/ul>\n
    \n

    Quartz Glass (12-inch wafer)<\/strong><\/span><\/h3>\n
      \n
    • Extremely high optical transmission (UV to IR range)<\/li>\n
    • Very low impurity and OH content<\/li>\n
    • High temperature resistance<\/li>\n
    • Surface roughness down to Ra \u2264 0.5 nm<\/li>\n
    • Suitable for optical MEMS and photonics<\/li>\n<\/ul>\n
      \n

      Fused Silica (12-inch wafer)<\/strong><\/span><\/h3>\n
        \n
      • Ultra-low thermal expansion (~0.5 ppm\/K)<\/li>\n
      • High purity synthetic material<\/li>\n
      • Excellent thermal shock resistance<\/li>\n
      • Optical transmission >90% (200\u20132000 nm range)<\/li>\n
      • Ideal for high-end optical and semiconductor applications<\/li>\n<\/ul>\n
        \n

        Alkaline-Free Glass (12-inch wafer)<\/strong><\/span><\/h3>\n
          \n
        • Free from heavy metal contamination (As, Sb, Ba, halides)<\/li>\n
        • Low fluorescence background<\/li>\n
        • High dielectric stability<\/li>\n
        • Compatible with advanced semiconductor processes<\/li>\n
        • Excellent chemical durability<\/li>\n<\/ul>\n
          \n

          Key Technical Specifications (12-Inch Glass Wafer)<\/strong><\/span><\/h2>\n

          Dimensional Parameters<\/strong><\/span><\/h3>\n
            \n
          • Wafer diameter: 300 mm (12 inch)<\/li>\n
          • Thickness range: 500 \u03bcm \u2013 2000 \u03bcm (customizable)<\/li>\n
          • Thickness tolerance: \u00b15 \u03bcm to \u00b120 \u03bcm<\/li>\n
          • Total Thickness Variation (TTV): \u2264 10\u201315 \u03bcm (high precision grade)<\/li>\n<\/ul>\n
            \n

            Kvalita povrchu<\/strong><\/span><\/h3>\n
              \n
            • Surface roughness (Ra): \u2264 1.0 nm standard<\/li>\n
            • Ultra-polished option: Ra \u2264 0.5 nm<\/li>\n
            • Surface flatness: \u2264 \u03bb\/10 (optional high-grade specification)<\/li>\n
            • Edge treatment: chamfered \/ rounded \/ custom profile<\/li>\n
            • Double-side polished (DSP) or single-side polished (SSP) available<\/li>\n<\/ul>\n

              \"\"<\/p>\n

              \n

              Material Performance (Reference Values)<\/strong><\/span><\/h3>\n
              \n
              \n\n\n\n\n\n\n\n\n
              Typ materi\u00e1lu<\/th>\nCTE (ppm\/K)<\/th>\nTransmission<\/th>\nKey Feature<\/th>\n<\/tr>\n<\/thead>\n
              Borosilicate<\/td>\n~3.2<\/td>\nSt\u0159edn\u00ed<\/td>\nSilicon bonding compatibility<\/td>\n<\/tr>\n
              Quartz<\/td>\n~0.55<\/td>\nHigh (UV\u2013IR)<\/td>\nOptical-grade performance<\/td>\n<\/tr>\n
              Fused Silica<\/td>\n~0.5<\/td>\n>90%<\/td>\nUltra-pure & stable<\/td>\n<\/tr>\n
              Alkaline-Free Glass<\/td>\n~3\u20134<\/td>\nN\/A<\/td>\nLow contamination<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n
              \n

              Manufacturing Capabilities<\/strong><\/span><\/h2>\n

              Our 12-inch glass wafers are produced under advanced precision manufacturing conditions:<\/p>\n

                \n
              • High-precision CNC shaping and slicing<\/li>\n
              • Chemicko-mechanick\u00e9 le\u0161t\u011bn\u00ed (CMP)<\/li>\n
              • Sub-nanometer surface finishing technology<\/li>\n
              • Cleanroom-grade cleaning and inspection<\/li>\n
              • Thickness and flatness metrology control<\/li>\n
              • SEMI \/ JEIDA standard compatibility (where applicable)<\/li>\n<\/ul>\n

                We support both prototype development and large-scale mass production.<\/p>\n

                \"\"<\/p>\n

                \n

                Applications of 12-Inch Glass Wafer<\/strong><\/span><\/h2>\n

                12-inch glass wafers are widely used in next-generation advanced industries:<\/p>\n

                  \n
                • Semiconductor wafer-level packaging (WLP \/ FOWLP)<\/li>\n
                • MEMS sensors and actuators<\/li>\n
                • Photonic integrated circuits (PIC)<\/li>\n
                • Optical communication modules<\/li>\n
                • Advanced display technologies (OLED \/ MicroLED)<\/li>\n
                • Automotive sensing systems (LiDAR, radar, imaging)<\/li>\n
                • Biochip and medical diagnostic devices<\/li>\n
                • High-frequency RF and microwave components<\/li>\n
                • Precision optical systems and lithography platforms<\/li>\n<\/ul>\n
                  \n

                  Advantages of 12-Inch Glass Wafer<\/strong><\/span><\/h2>\n
                    \n
                  • Full compatibility with 300mm semiconductor production lines<\/li>\n
                  • Excellent dimensional stability for large-area processing<\/li>\n
                  • Ultra-low surface roughness (<1 nm Ra)<\/li>\n
                  • High optical transparency (depending on material type)<\/li>\n
                  • Superior electrical insulation properties<\/li>\n
                  • High chemical and thermal stability<\/li>\n
                  • Suitable for high-volume manufacturing environments<\/li>\n
                  • Customizable thickness, material, and surface finish<\/li>\n<\/ul>\n

                    FAQ (Frequently Asked Questions)<\/strong><\/span><\/h2>\n

                    Q1: Can 12-inch glass wafers replace silicon wafers in semiconductor applications?<\/strong><\/span><\/h3>\n

                    12-inch glass wafers are not a full replacement for silicon wafers in active device fabrication, but they are widely used as advanced substrate or carrier materials<\/strong> in semiconductor packaging, MEMS, and photonic systems. Glass wafers offer superior electrical insulation, optical transparency, and lower dielectric loss, making them ideal for wafer-level packaging (WLP), fan-out WLP (FOWLP), and optical integration applications where silicon is not required as an active semiconductor layer.<\/p>\n

                    \n

                    Q2: What level of flatness and surface quality can you achieve for 12-inch glass wafers?<\/strong><\/span><\/h3>\n

                    For high-precision 12-inch glass wafers, we can achieve extremely tight surface control. Typical specifications include:<\/p>\n

                      \n
                    • Surface roughness (Ra): \u2264 1.0 nm (standard grade), down to \u2264 0.5 nm (ultra-polished grade)<\/li>\n
                    • Total Thickness Variation (TTV): \u2264 10\u201315 \u03bcm depending on material and thickness<\/li>\n
                    • Surface flatness: down to \u03bb\/10 (optional high-end specification)<\/li>\n<\/ul>\n

                      These parameters ensure excellent compatibility with advanced lithography, bonding, and thin-film deposition processes.<\/p>\n

                      \n

                      Q3: Can 12-inch glass wafers be customized for specific applications or process requirements?<\/strong><\/span><\/h3>\n

                      Yes. 12-inch glass wafers are highly customizable. We can adjust multiple parameters according to your process requirements, including:<\/p>\n

                        \n
                      • Material type (borosilicate, quartz, fused silica, alkaline-free glass)<\/li>\n
                      • Thickness (from 500 \u03bcm up to 2 mm or more)<\/li>\n
                      • Surface finish (SSP or DSP polishing)<\/li>\n
                      • Edge profile (chamfered, rounded, or custom edge design)<\/li>\n
                      • Flatness, TTV, and surface roughness levels<\/li>\n
                      • Special patterns, alignment marks, or laser engraving<\/li>\n<\/ul>\n

                        Customization is especially important for MEMS, optical systems, and advanced packaging applications where process compatibility is critical.<\/p>","protected":false},"excerpt":{"rendered":"

                        The 12-inch glass wafer is a critical enabling material for next-generation semiconductor packaging, MEMS integration, and optical system development. With its combination of large-diameter scalability, ultra-high precision surface quality, and customizable material properties, it is increasingly adopted in advanced manufacturing industries seeking alternatives to traditional silicon wafers.<\/p>","protected":false},"featured_media":2539,"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 center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}}},"product_brand":[],"product_cat":[729],"product_tag":[1471,1472,1477,1475,1474,1483,1056,1473,1480,1484,1476,1481,1478,1479,1482],"class_list":{"0":"post-2536","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-wafer","7":"product_tag-12-inch-glass-wafer","8":"product_tag-300mm-glass-wafer","9":"product_tag-alkaline-free-glass-wafer","10":"product_tag-borosilicate-glass-wafer","11":"product_tag-custom-glass-wafer","12":"product_tag-fan-out-wafer-level-packaging-fowlp","13":"product_tag-fused-silica-wafer","14":"product_tag-glass-wafer-substrate","15":"product_tag-mems-wafer-substrate","16":"product_tag-optical-glass-wafer","17":"product_tag-quartz-wafer-12-inch","18":"product_tag-semiconductor-glass-wafer","19":"product_tag-silicon-on-glass-wafer","20":"product_tag-sog-wafer","21":"product_tag-wafer-level-packaging-wlp","22":"desktop-align-left","23":"tablet-align-left","24":"mobile-align-left","25":"ast-product-gallery-layout-horizontal-slider","26":"ast-product-tabs-layout-horizontal","28":"first","29":"instock","30":"shipping-taxable","31":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/www.zmsh-semitech.com\/cs\/wp-json\/wp\/v2\/product\/2536","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.zmsh-semitech.com\/cs\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/www.zmsh-semitech.com\/cs\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/www.zmsh-semitech.com\/cs\/wp-json\/wp\/v2\/comments?post=2536"}],"version-history":[{"count":4,"href":"https:\/\/www.zmsh-semitech.com\/cs\/wp-json\/wp\/v2\/product\/2536\/revisions"}],"predecessor-version":[{"id":2549,"href":"https:\/\/www.zmsh-semitech.com\/cs\/wp-json\/wp\/v2\/product\/2536\/revisions\/2549"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.zmsh-semitech.com\/cs\/wp-json\/wp\/v2\/media\/2539"}],"wp:attachment":[{"href":"https:\/\/www.zmsh-semitech.com\/cs\/wp-json\/wp\/v2\/media?parent=2536"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.zmsh-semitech.com\/cs\/wp-json\/wp\/v2\/product_brand?post=2536"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.zmsh-semitech.com\/cs\/wp-json\/wp\/v2\/product_cat?post=2536"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.zmsh-semitech.com\/cs\/wp-json\/wp\/v2\/product_tag?post=2536"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}