9 January 2018 Design of an ultraprecision computerized numerical control chemical mechanical polishing machine and its implementation
Chupeng Zhang, Huiying Zhao, Xueliang Zhu, Shijie Zhao, Chunye Jiang
Author Affiliations +
Abstract
The chemical mechanical polishing (CMP) is a key process during the machining route of plane optics. To improve the polishing efficiency and accuracy, a CMP model and machine tool were developed. Based on the Preston equation and the axial run-out error measurement results of the m circles on the tin plate, a CMP model that could simulate the material removal at any point on the workpiece was presented. An analysis of the model indicated that lower axial run-out error led to lower material removal but better polishing efficiency and accuracy. Based on this conclusion, the CMP machine was designed, and the ultraprecision gas hydrostatic guideway and rotary table as well as the Siemens 840Dsl numerical control system were incorporated in the CMP machine. To verify the design principles of machine, a series of detection and machining experiments were conducted. The LK-G5000 laser sensor was employed for detecting the straightness error of the gas hydrostatic guideway and the axial run-out error of the gas hydrostatic rotary table. A 300-mm-diameter optic was chosen for the surface profile machining experiments performed to determine the CMP efficiency and accuracy.
© 2018 Society of Photo-Optical Instrumentation Engineers (SPIE) 0091-3286/2018/$25.00 © 2018 SPIE
Chupeng Zhang, Huiying Zhao, Xueliang Zhu, Shijie Zhao, and Chunye Jiang "Design of an ultraprecision computerized numerical control chemical mechanical polishing machine and its implementation," Optical Engineering 57(1), 015104 (9 January 2018). https://doi.org/10.1117/1.OE.57.1.015104
Received: 16 August 2017; Accepted: 6 December 2017; Published: 9 January 2018
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CITATIONS
Cited by 5 scholarly publications.
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KEYWORDS
Polishing

Chemical mechanical planarization

Tin

Error analysis

Surface finishing

Sensors

Kinematics

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