WO2005095053A1 - 直進型研磨方法及び装置 - Google Patents
直進型研磨方法及び装置 Download PDFInfo
- Publication number
- WO2005095053A1 WO2005095053A1 PCT/JP2005/005858 JP2005005858W WO2005095053A1 WO 2005095053 A1 WO2005095053 A1 WO 2005095053A1 JP 2005005858 W JP2005005858 W JP 2005005858W WO 2005095053 A1 WO2005095053 A1 WO 2005095053A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- polishing
- workpiece
- flat surface
- straight
- surface plate
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B37/00—Lapping machines or devices; Accessories
- B24B37/04—Lapping machines or devices; Accessories designed for working plane surfaces
- B24B37/07—Lapping machines or devices; Accessories designed for working plane surfaces characterised by the movement of the work or lapping tool
- B24B37/08—Lapping machines or devices; Accessories designed for working plane surfaces characterised by the movement of the work or lapping tool for double side lapping
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B21/00—Machines or devices using grinding or polishing belts; Accessories therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B21/00—Machines or devices using grinding or polishing belts; Accessories therefor
- B24B21/04—Machines or devices using grinding or polishing belts; Accessories therefor for grinding plane surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B37/00—Lapping machines or devices; Accessories
- B24B37/04—Lapping machines or devices; Accessories designed for working plane surfaces
Definitions
- the present invention relates to abrasive finishing of metals (iron and steel, non-ferrous metals) and non-metals (ceramic 'glass, plastics) and the like.
- Abrasive material to which free abrasives are dispersed is used to abrade a work and a lap by polishing.
- a lapping tool or a tool called polisher that is softer than metal is used.
- Polishing is a processing method used for the final finishing step of machining, and it is a processing method that is becoming more important with the recent high grade quality of equipment. .
- Abrasive force has many processing operations such as single-sided, double-sided, and curved surfaces. Basically, as shown in FIG. 10, on polishing plate (surface plate) 10 (in the case of polishing, it is fixed Press the work piece 3 contained in the holder 14 held by the carrier 13 etc.
- polishing plate 10 is rotated at the speed of N while dropping the polishing liquid 15 containing the loose abrasive 12 onto the polisher 11), and the relative movement between the rotation and the rotation of the work 3 makes the work 3 Is a processing method in which the surface is removed with free granules 12 to make the surface highly smooth.
- Non-woven fabrics and suede-type plastics are often used as polishers.
- the current maximum polishing rate in this polishing process is considered to be about 2 m / s.
- the diameter of the polishing platen is at least the workpiece. More than twice as large as a large work surface requires a large lapping plate and a large footprint for the lapping machine. Furthermore, it is difficult to support a workpiece in principle, and it is difficult to manufacture a rotary double-sided polishing table whose rotational axis is in the horizontal direction and the rotational surface is in the vertical direction. It is difficult to make full use of space. Because of this, it is possible to construct an automatic grinding system that is more compact and can continuously feed workpieces into the device, and it is possible to use the space around the device sufficiently. Development is strongly expected.
- the present invention is difficult to realize by the rotary grinding method using the current rotary grinding plate. It is compact, and it is easy to construct an automatic grinding processing system that can continuously feed a workpiece into the apparatus. Provide a new concept of polishing method and its processing equipment that can be used effectively and the space around the equipment can be used effectively.
- the coefficient of friction of the surface of a single flat surface plate performing linear motion is made to differ in a direction perpendicular to the linear motion direction, and the workpiece is pressed against the flat surface plate.
- It is a straight-line type polishing method in which a workpiece is ground with a gun shot by providing a couple for rotational movement with a relative movement between the rotation and the single flat surface plate performing linear movement.
- the flat platen can be opposed to another flat platen, and one side or both sides can be polished with the workpiece interposed therebetween.
- a workpiece fixed by a disk-shaped subcarrier is held by a long plate-shaped carrier having a disk-shaped hole, and the carrier is gradually moved in one direction as polishing progresses. It can be polished continuously while being drawn out.
- the bell passing on the workpiece support instead of the flat surface plate Can be used.
- the present invention further comprises a pair of parallel flat surface plates adjacent in parallel, a means for linearly moving the plates in opposite directions, and a means for pressing a workpiece against the plates.
- This is a straight-line type polishing apparatus, which is a feature.
- one set of parallel flat surface plates can be disposed opposite to another set of parallel flat surfaces so as to sandwich the work piece therebetween.
- a long plate-like carrier for supplying and discharging a workpiece to the polishing apparatus continuously during polishing.
- a circular hole for holding a subcarrier for holding an object having a rotation center at the position adjacent to the adjacent center line of the plane parallel plate or at the position separated from the adjacent center line in the plate-like carrier.
- a disk-like subcarrier hole in the plate-like carrier having circular, square, rectangular, polygonal, etc. workpiece holding holes, the rotation center of which is on the adjacent center line of the parallel flat surface plate.
- a single flat surface plate performing linear motion in which the coefficient of friction of the surface is made different in a direction perpendicular to the linear motion direction, and a means for pressing a workpiece against the flat surface It is a straight advance type polishing apparatus characterized by becoming.
- the flat surface plate can be disposed to face the other flat surface plate and sandwich the workpiece therebetween.
- polishing is performed while rotating the workpiece by the couple provided by the flat surface plate performing linear motion, so that no polishing streaks in one direction are formed, and such directionality is It is possible to obtain a good surface finish with a roughness of about 1.5 nm or less (several atomic intervals or less). If the workpiece does not rotate, a streak of roughness exceeding lOnm is formed, which is directional to the direction of movement of the flat plate. Therefore, according to the method of the present invention, it is possible to obtain an ultra-smooth surface free of polishing marks.
- the linear polishing method of the present invention has the following effects.
- the polishing method according to the present invention uses a pair of polishers 11 adjacent in parallel as parallel plane platens A and B.
- a pair of polishers 11 performs linear motion at a velocity of V in opposite directions with respect to adjacent centerlines.
- a pressure P is applied to the workpiece 3 contained in the holder 14 with little constraint on rotation so as to contact both of the set of polishers 11. This provides the workpiece 3 with a couple for rotational movement.
- a polishing solution containing loose abrasives is supplied. Then, the surface of the workpiece 3 is removed with free granules by the relative motion of the polisher 11 which moves linearly with the rotation of the workpiece 3 to make the surface highly smooth.
- the method of the present invention is basically a method of rotating the workpiece by using the movement direction of the polisher or the surface structure of the platen, but the workpiece is rotated by the power of motor or the like, Polishing can also be performed by adjusting the relative movement with the platen or polisher.
- polishing apparatus using this method if the width of each pair of polishers 11 is slightly larger than the diameter of the work piece 3, the polishing process can be performed, so the space can be smaller than that of the rotary polishing plate. Is small.
- the workpiece 3 is held in a long plate-like carrier 13 having a disk-like hole as a workpiece holding hole, and the carrier 13 is
- the continuous automation of double-sided polishing of the work is also possible if it is made to gradually pull out in one direction as the polishing progresses. Power! ]
- the plane of rotation is horizontal as shown in It is also possible to easily use a vertical double-sided polishing method in which the rotating surface is in the vertical direction, and it is possible to use the space around the apparatus effectively. A system is also possible.
- the shape of the holes in the subcarrier 13A can be polished to a square, a rectangle, a polygon or the like in addition to the circular shape. Also, in the case of a circular work without holes, the center of the hole in the work in carrier 13 may be separated from the force on the adjacent center line without using subcarrier 13A. Polishing becomes possible.
- subcarrier 13A having two or more workpiece holding holes is used at a position away from the rotation center force of subcarrier 13A, as shown in FIG.
- the entire surface of the workpiece 3 can be polished regardless of the presence or absence of the workpiece hole. This method is suitable for polishing large volumes of workpieces.
- 6 and 7 are conceptual diagrams showing another embodiment of the polishing method and apparatus of the present invention.
- the friction force of the surface of a linear plate performing linear movement is made to differ in the direction perpendicular to the linear movement direction, and a couple of forces for rotational movement is applied to the workpiece by pressing the workpiece against the linear plate. Can be given.
- belt-type polishers 11, 11 performing linear motion in the opposite direction at the speed of V mutually in V ⁇ . Place the workpiece 3 held in the carrier 13 and press the polishers 11 and 11 with pressure P to press the vertical force to bring the surface of the workpiece 3 into contact with the surface of the polishers 11 and 11 to perform single-sided or double-sided polishing. It is a method.
- the friction force is Make it different. For example, by providing a circular hole or a linear groove on the surface of the polisher on one side with respect to the longitudinal center line, the contact area between the workpiece on one side and the polisher can be reduced, from the other side. The frictional force can be reduced. In addition, even if mechanical properties such as the hardness of the polisher surface are changed between the left and right of the longitudinal center line of the polisher, the contact state between the workpiece and the polisher on the left and right will change, so It is possible to change the force and give a couple.
- the workpiece 3 is provided with a couple for rotational movement.
- a polishing solution containing loose abrasives is supplied on the polisher 11.
- the upper and lower surfaces of the workpiece 3 are removed by loose granules by relative rotation of the workpiece 3 and the relative motion of the polisher 11 which moves linearly, and the surface is made smooth.
- the polishing can be similarly performed using belt-type polishers 11 and 11 which perform linear motion in the same direction at the velocity of V.
- FIGS. 6 and 7 show an embodiment in which a linear motion type flat surface plate is opposed and one side or double side polishing is performed with a workpiece interposed therebetween, and linear motion is performed at the speed of V.
- a linear motion type flat surface plate is opposed and one side or double side polishing is performed with a workpiece interposed therebetween, and linear motion is performed at the speed of V.
- a pair of adjacent belt-shaped polishers A and B passing on the workpiece support were circulated by linear motion in opposite directions to each other by motors M1 and M2, respectively. Polishing was carried out by pressing a disk-shaped magnetic disk substrate as a workpiece on the two side surfaces sandwiching the adjacent center lines of one set of polishers.
- abrasive alumina abrasive was uniformly supplied on the polisher.
- the pressing pressure is 3.7 kPa
- the moving speed of the polisher is 1.5 m / s
- the polisher is suede type.
- the magnetic disk substrate is an aluminum type, and the polishing time is 5 minutes.
- the magnetic disk substrate was rotated by a couple at a speed of at least 0.15 m / s, and the relative movement with the linearly moving polishers A and B polished the substrate to smooth the substrate.
- FIG. 9 shows the smoothness of the surface of the magnetic disk substrate obtained by polishing, as a result of three-dimensional roughness measurement using an optical interference type high accuracy surface measuring instrument (WYKO). Magnetic disk The substrate surface was very cleanly polished by polishing, and reached an ultra-smooth surface with a Ra value of about 1.3 ⁇ , demonstrating the effectiveness of the straight-line polishing apparatus of the present invention.
- WYKO optical interference type high accuracy surface measuring instrument
- FIG. 1 is a schematic view showing the principle of the straight-line polishing method of the present invention.
- FIG. 2 is a schematic view showing an embodiment of a straight-ahead type double-side polishing method of the present invention.
- FIG. 3 is a schematic view showing a continuous automatic processing method by the straight-ahead type double-sided polishing apparatus of the present invention.
- FIG. 4 A schematic view showing a modification of the continuous automatic processing method shown in FIG.
- FIG. 5 A schematic view showing another modification of the continuous automatic processing method shown in FIG.
- FIG. 6 is a schematic view showing another embodiment of the straight-ahead type double-side polishing method of the present invention.
- FIG. 7 is a schematic view showing a modification of the straight-ahead type double-sided polishing method shown in FIG.
- FIG. 8 is a perspective view of a straight-line polishing apparatus used in the examples.
- FIG. 9 is a drawing-substituting photograph showing the three-dimensional roughness measurement results of the magnetic disk substrate polished in the example using the optical interference type high accuracy surface measurement device (WYKO).
- FIG. 10 is a schematic view showing the principle of conventional polishing (example of polishing).
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006511668A JP4472694B2 (ja) | 2004-03-31 | 2005-03-29 | 直進型研磨方法 |
EP05727544A EP1745888A4 (en) | 2004-03-31 | 2005-03-29 | METHOD AND DEVICE FOR LINEAR ADVANCED POLISHING |
CN2005800079883A CN1929954B (zh) | 2004-03-31 | 2005-03-29 | 直线前进型研磨方法和装置 |
US10/599,562 US20070202777A1 (en) | 2004-03-31 | 2005-03-29 | Linearly Advancing Polishing Method And Apparatus |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004105655 | 2004-03-31 | ||
JP2004-105655 | 2004-03-31 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005095053A1 true WO2005095053A1 (ja) | 2005-10-13 |
Family
ID=35063594
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2005/005858 WO2005095053A1 (ja) | 2004-03-31 | 2005-03-29 | 直進型研磨方法及び装置 |
Country Status (7)
Country | Link |
---|---|
US (1) | US20070202777A1 (ja) |
EP (1) | EP1745888A4 (ja) |
JP (1) | JP4472694B2 (ja) |
KR (1) | KR100806949B1 (ja) |
CN (1) | CN1929954B (ja) |
TW (1) | TWI271261B (ja) |
WO (1) | WO2005095053A1 (ja) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101249632B (zh) * | 2008-03-20 | 2010-06-09 | 沈阳材佳机械设备有限公司 | 往复直线加旋转运动研磨抛光装置 |
US8684791B2 (en) * | 2011-11-09 | 2014-04-01 | Alvin Gabriel Stern | Linear, automated apparatus and method for clean, high purity, simultaneous lapping and polishing of optics, semiconductors and optoelectronic materials |
US9950404B1 (en) | 2012-03-29 | 2018-04-24 | Alta Devices, Inc. | High throughput polishing system for workpieces |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6080559A (ja) * | 1983-10-12 | 1985-05-08 | Mitsubishi Metal Corp | 研磨装置 |
JPH0852652A (ja) * | 1994-08-09 | 1996-02-27 | Ontrak Syst Inc | リニアポリシャ及び半導体ウエハ平滑化方法 |
JPH08195364A (ja) * | 1994-10-11 | 1996-07-30 | Ontrak Syst Inc | 半導体ウェーハを研磨するための研磨パッドクラスタ |
JPH10249720A (ja) * | 1997-03-13 | 1998-09-22 | Kobe Steel Ltd | 平板状工作物のポリッシング加工方法 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2144354B (en) * | 1983-07-15 | 1987-03-11 | Helical Springs Limited | Grinding apparatus |
US5371973A (en) * | 1992-09-30 | 1994-12-13 | Western Atlas Inc. | Grinding machine utilizing multiple, parallel, abrasive belts simultaneously grinding surfaces on a workpiece |
US6241583B1 (en) * | 1999-02-04 | 2001-06-05 | Applied Materials, Inc. | Chemical mechanical polishing with a plurality of polishing sheets |
US6626744B1 (en) * | 1999-12-17 | 2003-09-30 | Applied Materials, Inc. | Planarization system with multiple polishing pads |
US6422929B1 (en) * | 2000-03-31 | 2002-07-23 | Taiwan Semiconductor Manufacturing Co., Ltd. | Polishing pad for a linear polisher and method for forming |
US20040137830A1 (en) * | 2002-12-24 | 2004-07-15 | Kazumasa Ohnishi | Lapping method and lapping machine |
-
2005
- 2005-03-29 JP JP2006511668A patent/JP4472694B2/ja not_active Expired - Fee Related
- 2005-03-29 CN CN2005800079883A patent/CN1929954B/zh not_active Expired - Fee Related
- 2005-03-29 WO PCT/JP2005/005858 patent/WO2005095053A1/ja active Application Filing
- 2005-03-29 EP EP05727544A patent/EP1745888A4/en not_active Withdrawn
- 2005-03-29 KR KR1020067019958A patent/KR100806949B1/ko active IP Right Grant
- 2005-03-29 US US10/599,562 patent/US20070202777A1/en not_active Abandoned
- 2005-03-30 TW TW094110147A patent/TWI271261B/zh not_active IP Right Cessation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6080559A (ja) * | 1983-10-12 | 1985-05-08 | Mitsubishi Metal Corp | 研磨装置 |
JPH0852652A (ja) * | 1994-08-09 | 1996-02-27 | Ontrak Syst Inc | リニアポリシャ及び半導体ウエハ平滑化方法 |
JPH08195364A (ja) * | 1994-10-11 | 1996-07-30 | Ontrak Syst Inc | 半導体ウェーハを研磨するための研磨パッドクラスタ |
JPH10249720A (ja) * | 1997-03-13 | 1998-09-22 | Kobe Steel Ltd | 平板状工作物のポリッシング加工方法 |
Non-Patent Citations (1)
Title |
---|
See also references of EP1745888A4 * |
Also Published As
Publication number | Publication date |
---|---|
US20070202777A1 (en) | 2007-08-30 |
KR100806949B1 (ko) | 2008-02-22 |
JPWO2005095053A1 (ja) | 2008-07-31 |
KR20060132954A (ko) | 2006-12-22 |
EP1745888A1 (en) | 2007-01-24 |
CN1929954B (zh) | 2011-12-14 |
JP4472694B2 (ja) | 2010-06-02 |
EP1745888A4 (en) | 2008-01-02 |
CN1929954A (zh) | 2007-03-14 |
TW200531781A (en) | 2005-10-01 |
TWI271261B (en) | 2007-01-21 |
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