Case Studies

Thank you for your interest in GT Advanced Technologies products and services. Below is a collection of thought leadership case studies. For more information regarding our products and technologies please contact a GT Advanced Technologies representative.

Case Studies

The Impact of Sapphire Material Quality on the HB-LED Device Manufacturing Process (587.45 KB)
This document presents the final results of a study performed by GT Advanced Technologies (GT) on the effects of sapphire material quality on the High Brightness (HB)-LED device manufacturing process. This study is part of a larger comprehensive material characterization project, which was initiated by GT to study the effects of sapphire material properties on the entire manufacturing process in the HB LED value chain, and to provide data indicating the “Metrics that Matter” for driving higher yields and profits in the sapphire material and LED industries.
影响蓝宝石材料质量对HB-LED设备制 造过程的个案研究 (SCN HB LED Device) (1.77 MB)
本文介绍了由 GT Advanced Technologies (GT) 执行的有关蓝 宝石材料质量对 HB-LED 设备制 造过程的影响研究的最终结果。 本研究是大型综合材料表征项目的一部分，由 GT 发起以研究蓝 宝石材料属性对高亮 LED 价值链 中整个制造过程的影响，并提供 表明促进蓝宝石材料和 LED 行业 产生更高产量和利润的“关键指 标”的数据。
有關藍寶石材料品質對 HB-LED 設備 製造過程的影響的個案研究 (TCN HB-LED Device) (2.8 MB)
本文介紹了由 GT Advanced Technologies (GT) 執行的有關藍寶 石材料品質對 HB-LED 設備製造過 程的影響研究的最終結果。本研究是大型綜合材料表徵項目的一部分，由 GT 發起以研究藍寶石材料屬性對高亮 LED 價值鏈中整個製造過程的影響，並提供表明促進藍寶石材料和 LED 行業產生更高產量和利潤的「關鍵指標」的數據。
The Path to High Value HB-LEDs and Epi-Wafers Begins with GT ASF™-Grown Sapphire (1.57 MB)
Throughout the sapphire material characterization project over 60 variables of data were recorded allowing for an in-depth, blind study analysis that provided insight into the critical properties of sapphire or the “Metrics that Matter”. A correlation analysis was performed on the measured data variables relating to sapphire material, throughout the HB-LED manufacturing value chain. The broad data categories included sapphire material intrinsic properties, epi-wafer manufacturing and HB-LED performance variables. The evaluated sapphire material samples included material grown using ASF, KY and HEM-like growth techniques and covered a range of different material qualities.
注：新标题 - 高价值 HB-LED 和外 延晶片从 GT ASF™ 生长蓝宝石开始 (SCN - Path to High Value) (1.9 MB)
在整个蓝宝石材料表征项目中，对超过 60 个数据变量进行了记录，以便进行一个深入的盲测研究分析，从而提供蓝宝石的关键属性或“关键指标”。相关性分析的执行基于与蓝宝石材料有关的测量数据变量，并贯穿于整个HB-LED 制造价值链。广泛的数据类别包括蓝宝石材料的内在属性、“开盒即用”晶片制造和HB-LED 性能变量。已评估的蓝宝石材料样品包括用 ASF、KY 和类-HEM 生长技术生长的材料，涵盖了不同材料质量的范围。
注:新標題 - 高價值 HB-LED 和外延晶 圓從 GT ASF™ 生長藍寶石開始 (TCN - Path to High Value) (2.44 MB)
在整個藍寶石材料表徵項目中，對超過 60 個資料變數進行了記錄，以便進行一個深入的單盲研究分析，從而提供藍寶石的關鍵屬性或「關鍵指標」。相關性分析的執行基於與藍寶石材料有關的測量資料變數，並貫穿於整個HB-LED 製造價值鏈。廣泛的資料類別包括藍寶石材料的內在屬性、「開盒即用」晶圓製造和 HBLED效能變數。已評估的藍寶石材料樣品包括用 ASF、KY 和類-HEM生長技術生長的材料，涵蓋了不同材料品質的範圍。
Sapphire Case Study - The Impact of Sapphire Color on HB LED Manufacturing (1.69 MB)
In January of 2011, GT Advanced Technologies initiated an extensive sapphire material qualification project to determine the sapphire material “Metrics that Matter” in the manufacturing processes of HB LED devices. The studies in this paper were conducted with reputable third parties to examine how, if at all, the pink hue exhibited by sapphire produced in GT Advanced Technologies’ Advanced Sapphire Furnace (ASF™) impacts the quality of LED wafers or the standard LED manufacturing process. The study concludes that there is no correlation between the trace color found in the wafers and the color of the GT ASFgrown material thus validating that the light pink hue of GT ASF sapphire at the boule and core level has no effect on LED wafer color.
Sapphire Case Study - The Impact of Sapphire Color on HB LED Manufacturing (Simplified) (3.24 MB)
蓝宝石颜色对高亮LED制造工艺的影响 - 2011 年1月，极特先进科技有限公司（GT） 启动了大规模的蓝宝石材料质量鉴定项目，以确定高亮 LED器件制造工艺的蓝宝石材料“重要衡量指标”。 本文介绍的各项研究是与知名的第三方机构共同开展的，目的是检验极特先进科技有限公司的高级蓝宝石晶体长晶炉(ASF™)生产的蓝宝石的粉红色调对LED晶片或标准LED制造工艺有何影响。研究结论是：晶片的颜色与GT ASF中生长的材料颜色之间不存在关联，由此证明晶锭级和晶棒级GT ASF蓝宝石的浅粉色对LED晶片颜色无任何影响。
Yields Matter: The Impact of Sapphire Material Quality on the LED Wafering Process (3.33 MB)
This document presents the results of a study performed by GT Advanced Technologies (GT) and summarizes the effects of sapphire material quality on the epi-ready wafer manufacturing process. This wafer study is part of a larger comprehensive material characterization project which was initiated by GT to study the effects of sapphire material properties on the entire manufacturing processes in the High Brightness (HB) LED value chain.
Impact of Sapphire Material on LED Wafering - Case Study Presentation Summary (1.59 MB)
Sapphire Business Overview & GT Material Characterization Study: Impact of Sapphire Material on LED Wafering
Maximizing Yields Throughout the LED Manufacturing Value Chain (811.42 KB)
GT Advanced Technologies’ Characterization of Sapphire Material Project GT Advanced Technologies is committed to continuously pushing the boundaries of single crystal sapphire technology to drive toward higher yields of 2”, 4” and 6” wafers and beyond, as well as providing material that improves downstream yields in LED manufacturing. In January of 2011, GT initiated an extensive sapphire material qualifi cation project to determine the sapphire material “Metrics that Matter” in the manufacturing processes of HB LED devices. The project has been designed to evaluate the eff ects of sapphire material on yields in LED manufacturing and objectively evaluate properties and diff erences between diff erent sapphire growth techniques.

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