HFCVD参数对钻石涂层的影响以及对蓝宝石晶圆涂层的工艺调查
Wei Feng1, Shuai Zhou1, Xiaokang Sun1
1School of Mechanical Engineering, Yancheng Institute of Technology, Yancheng 224001, China.
Materials (Basel, Switzerland)
|February 13, 2026
概括
新的热丝化学蒸气沉积 (HFCVD) 钻石工具增强了蓝宝石晶圆的覆盖. 这些工具提高了超过1μm/h的材料去除速度,同时保持表面粗度低于Ra ≤0.5μm,优化了精密加工.
科学领域:
- 材料科学与工程 材料科学与工程
- 表面工程是什么?表面工程是什么?
- 纳米技术纳米技术
背景情况:
- 现有的拉皮工具在材料去除率和表面完整性方面面临挑战,例如蓝宝石等硬,易碎的材料.
- 蓝宝石晶圆覆盖对于半导体和光学应用至关重要,要求高精度和效率.
研究的目的:
- 开发一个高效的拉皮工艺的蓝宝石晶片使用热丝化学蒸气沉积 (HFCVD) 的钻石工具.
- 为了研究钻石薄膜表面形态和接性能之间的关系.
- 为了达到超过1μm/h的材料去除速度,同时保持 Ra ≤ 0.5μm的表面粗度.
主要方法:
- 系统地调查影响化学蒸气沉积 (CVD) 的关键制备参数 (气压,甲度,基质温度) 的钻石膜表面特征.
- 制造三种类型的CVD钻石涂层工具,具有不同的表面形态 (形,球形,金字塔形).
- 使用制造的钻石工具对蓝宝石晶片进行拉皮实验,以评估加工性能.
主要成果:
- 钻石涂层形态受到气体压力,甲度和基质温度的显著影响.
- 镜式CVD钻石涂层工具实现了最高的材料去除率,稳定在约1.7微米/分钟.
- 球形钻石涂层工具在蓝宝石晶片上产生了最低的表面粗度,约为0.35微米.
结论:
- 表面形态可控制的钻石工具能够高效地覆盖蓝宝石晶片,具有良好的表面质量和高的去除率.
- 这项研究为脆硬材料的精密加工提供了一种新的方法,适用于平面和曲表面.
- HFCVD钻石工具为推进蓝宝石拉皮技术提供了一个有前途的解决方案.
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