Design and fabrication of a high precision wafer polishing machine
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2000.
| Main Author: | |
|---|---|
| Other Authors: | |
| Format: | Thesis |
| Language: | eng |
| Published: |
Massachusetts Institute of Technology
2005
|
| Subjects: | |
| Online Access: | http://hdl.handle.net/1721.1/9015 |
| _version_ | 1826208693452013568 |
|---|---|
| author | Torkaman, Amir (Amir Hesam), 1979- |
| author2 | Ernesto Blanco. |
| author_facet | Ernesto Blanco. Torkaman, Amir (Amir Hesam), 1979- |
| author_sort | Torkaman, Amir (Amir Hesam), 1979- |
| collection | MIT |
| description | Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2000. |
| first_indexed | 2024-09-23T14:10:17Z |
| format | Thesis |
| id | mit-1721.1/9015 |
| institution | Massachusetts Institute of Technology |
| language | eng |
| last_indexed | 2024-09-23T14:10:17Z |
| publishDate | 2005 |
| publisher | Massachusetts Institute of Technology |
| record_format | dspace |
| spelling | mit-1721.1/90152019-04-11T13:32:15Z Design and fabrication of a high precision wafer polishing machine Torkaman, Amir (Amir Hesam), 1979- Ernesto Blanco. Massachusetts Institute of Technology. Dept. of Mechanical Engineering. Massachusetts Institute of Technology. Dept. of Mechanical Engineering. Mechanical Engineering. Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2000. Includes bibliographical references (leaf 142). The objective of this project is to design and fabricate a full-scale Chemical- Mechanical Polishing machine, whose performance is much higher than that of the existing technology. The machine consists of a lower structure, an upper structure, and a polishing head. This thesis covers the design of the upper structure in detail. The machine was recently built and tested. The upper machine frame, which is the moving component of this polishing tool, was designed for maximum rigidity using FEA analysis. Vibrational analysis was also performed to design a mechanically quiet system. All of the associated components were designed with extreme precision in mind. In addition to the upper structure, a loading mechanism was also designed for the polishing head. Two high-precision linear drive mechanisms, the z-axis and the x-axis, were designed as the two major axes of motion for this machine tool. The z-axis applies the normal polishing force of 1500 lbs. This axis has a travel of 8", maximum velocity of 4 in/sec, resolution of 50 nm, and a repeatability of 0.0005". The z-axis applies the load using a pneumatic piston, in parallel with a "rotary" ball screw. The x-axis moves the upper machine structure, which weighs over 2000 lbs. The x-axis has a travel of 82", a maximum velocity of 12 in/sec, a maximum acceleration of 0.2g's, a resolution of 10 microns, and a repeatability of 0.002". The x-axis is driven on both sides with two separate motors and ball screws. by Amir Torkaman. S.M. 2005-09-27T19:56:38Z 2005-09-27T19:56:38Z 2000 2000 Thesis http://hdl.handle.net/1721.1/9015 47652038 eng M.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission. http://dspace.mit.edu/handle/1721.1/7582 142 leaves 10047836 bytes 10047597 bytes application/pdf application/pdf application/pdf Massachusetts Institute of Technology |
| spellingShingle | Mechanical Engineering. Torkaman, Amir (Amir Hesam), 1979- Design and fabrication of a high precision wafer polishing machine |
| title | Design and fabrication of a high precision wafer polishing machine |
| title_full | Design and fabrication of a high precision wafer polishing machine |
| title_fullStr | Design and fabrication of a high precision wafer polishing machine |
| title_full_unstemmed | Design and fabrication of a high precision wafer polishing machine |
| title_short | Design and fabrication of a high precision wafer polishing machine |
| title_sort | design and fabrication of a high precision wafer polishing machine |
| topic | Mechanical Engineering. |
| url | http://hdl.handle.net/1721.1/9015 |
| work_keys_str_mv | AT torkamanamiramirhesam1979 designandfabricationofahighprecisionwaferpolishingmachine |