飛秒雷射於液面下藍寶石通孔之初期研究;Research on sapphire drilling by femtosecond laser processing underwater

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题名:	飛秒雷射於液面下藍寶石通孔之初期研究;Research on sapphire drilling by femtosecond laser processing underwater
作者:	蘇耘;Su, Yun
贡献者:	光機電工程研究所
关键词:	雷射加工;飛秒雷射;藍寶石;鑽孔;Laser machining;Femtosecond laser;Sapphire;Drilling
日期:	2022-08-30
上传时间:	2022-10-04 11:11:31 (UTC+8)
出版者:	國立中央大學
摘要:	在5G產業興起的浪潮下，藍寶石基板因為其耐高溫、高硬度、抗腐蝕、高透光、介電系數高等特點，常用作光電元件與基板的材料。然而藍寶石基板的優秀特性也注定其加工難度相較於其他材料困難許多，而目前消費性電子產品逐漸輕薄短小的趨勢，使得加工尺寸與精度的要求不停縮小，傳統加工方式逐漸難以完成這些需求。近年超短脈衝雷射之雷射源逐漸商業化，其被視為具有潛力的工具之一，運用脈衝雷射對藍寶石等硬脆材料的研究也逐漸增多。本研究將整合奈米飛秒雷射與高速高精之六軸移動平台，建立物鏡加工系統，固定光源並移動平台以達到雷射與材料相對運動之方式，針對200 μm厚度之藍寶石規劃雷射加工路徑，將試片置於液面下完成微孔之鑽孔，分析探討不同情形對於雷射加工的影響，並改善其孔洞品質。;Sapphire substrates are often used as materials for optoelectronic components and substrates because of their high-temperature resistance, high hardness, corrosion resistance, high light transmission, and high dielectric coefficient with the rise of the 5G industry. However, the excellent characteristics of the sapphire substrate also make it more difficult to be processed than other materials. The trend of consumer electronic products is becoming lighter, thinner, and shorter, which makes the requirements for processing size and precision continue to shrink, and traditional processing methods are gradually difficult to meet these requirements. In recent years, the laser source of ultra-short pulse laser has been gradually commercialized, and it is regarded as one of the potential tools. The research on hard and brittle materials such as sapphire using pulse laser has also gradually increased. This research integrates the femtosecond laser with a high-speed and high-precision six-axis platform, establishes laser processing system to achieve the relative motion between the laser and the material, and plans the laser for a sapphire with a thickness of 200 μm. The processing path is to place the material under water to complete the drilling of micro-holes, analyze the influence of different situations on the laser processing, and improve the hole quality.
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