location: Current position: Home >> Scientific Research >> Paper Publications

金刚石砂轮磨削单晶硅片面形变化规律

Hits:

Indexed by:期刊论文

Date of Publication:2017-05-05

Journal:金刚石与磨料磨具工程

Included Journals:Scopus

Volume:37

Issue:2

Page Number:6-10

ISSN No.:1006-852X

Key Words:磨削硅片;残余应力;曲率;晶向

Abstract:磨削减薄过程中,硅片表面产生亚表面损伤,其中的残余应力使硅片产生翘曲变形.因此,研究无光磨磨削时的硅片面形变化规律以评价其加工质量.使用金刚石砂轮无光磨磨削厚度400 μm和450μm的硅片并测量其面形.将硅片面形数据从中心向边缘沿径向分割成5个环带,分别研究其面形拟合弯曲曲率半径变化.结果显示:从中心区域到边缘区域,硅片的变形量增大,说明无光磨硅片上的残余应力变大,即磨削加工损伤增大.同时,研究还发现晶向对硅片变形有显著影响,<110>晶向区变形与<100>晶向区变形差异明显.

Pre One:Modeling and simulating of high chromium alloy based on Molecular Dynamics

Next One:Design Optimization Method for Additive Manufacturing of the Primary Mirror of a Large-Aperture Space Telescope