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公开(公告)号：JP2003141716A
公开(公告)日：2003-05-16
申请号：JP2002329594
申请日：2002-11-13
Applicant: IBM
Inventor： BARENBOIM MICHAEL , PETER MICHAEL BAUMGARDT , PETER B CRUSCH , HAPER BENNY MICHAEL , BENJAMIN KARUNI , PETER J M KERSTENS , SEING HONG S , TAM ANDREW CHING
Abstract: PROBLEM TO BE SOLVED: To provide a computer readable storage medium on which a computer program is recorded for making a computer carry out the control of the power of a laser beam used in texturing a disk. SOLUTION: An optical system for providing textured spots in an annular portion of the disk includes a laser directed at a beamsplitter to split the laser beam into two beams having approximately power. The two beams are directed along parallel paths through a power control optics block to expose simultaneously both sides of the disk to be textured. The power level of each of these two beams is controlled by a program which operates in a teach mode to develop look up table describing laser beam power as a function of a signal driving an attenuator, in a set point mode setting this driving signal to provide a certain laser beam power, in a run mode controlling this power through a feedback loop, and in a display mode showing laser beam power as a function of time.
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公开(公告)号：JPH10116422A
公开(公告)日：1998-05-06
申请号：JP21458297
申请日：1997-08-08
Applicant: IBM
Inventor： BARENBOIM MICHAEL , BAUMGART PETER MICHAEL , CHRUSCH PETER B , HARPER BENNY MICHAEL , KARNI BENJAMIN , KERSTENS PIETER J M , KRAJNOVICH DOUG JOHN , POUR IRAJ KAHKESH , SEING HONG S , TAM ANDREW C
Abstract: PROBLEM TO BE SOLVED: To provide a disk texture tool for giving a texture spot by irradiating annular parts on both sides of a hard file disk with a laser beam. SOLUTION: A disk is moved while being housed in a cassette and subjected to the texture process through two disk processing stations. An optical system introduces a laser beam 131 to a beam splitter 132 and the laser beam is divided into two beams. Two beams have approximately equal power, travel toward a power control optical block along a parallel paths and both surfaces of the disk to be given by the texture are irradiated with the beams through the block. The power control optical block 136 has an attenuating/measuring means of two beams, respectively. A mirror moving left and right alternately sends two beams to the two disk processing stations.
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公开(公告)号：JPH1027340A
公开(公告)日：1998-01-27
申请号：JP5461797
申请日：1997-03-10
Applicant: IBM
Inventor： BARENBOIM MICHAEL , BAUMGART PETER MICHAEL , CHRUSCH PETER PAUL , KARNI BENJAMIN , KERSTENS PIETER J M , THAO ANH NGUYEN , SEING HONG S , ANDREW CHING TAM
Abstract: PROBLEM TO BE SOLVED: To provide a device for forming a disk having a surface roughened by pulse laser exposure. SOLUTION: The disk 49 in a cassette 48 is roughened through disk processing stations 38, 39. A lifter 59 lifts up each disk form the cassette, and transfers it to a pick-and-place mechanism 71 to be moved to a spindle 86. The spindle is rotated, and the disk is advanced side by side, and its both sides are exposed to beams led out from a pulse laser 108. Then, the pick-and-place mechanism returns the disk to the lifter, and lowers the disk to an original cassette pocket. While the pick-and-place mechanism of one side disk processing station moves the disk, the disk in the spindle of another disk processing station is exposed to the laser beam.
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公开(公告)号：DE69726361T2
公开(公告)日：2004-09-09
申请号：DE69726361
申请日：1997-09-01
Applicant: IBM
Inventor： BARENBOIM MICHAEL , BAUMGART PETER MICHAEL , CHRUSCH PETER B , HARPER BENNY MICHAEL , KARNI BENJAMIN , KERSTENS PIETER J M , KRAJNOVICH DOUG JOHN , POUR IRAJ KAHKESH , SEING HONG S , TAM ANDREW C
Abstract: A disk texturing tool is used, for example, to provide textured spots in an annular portion of both sides of a hardfile disk. Disks are moved into and out of the texturing process in cassettes, through two disk-handling stations. An optical system includes a laser directed at a beamsplitter to split the laser beam into two beams having approximately power, which are directed along parallel paths through a power control optics block to expose simultaneously opposite sides of a disk to be textured. The power control optics block includes means for attenuating and measuring each of the two beams. A shuttling mirror directs these two beams alternately at a disk within each of the two disk handling stations.
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公开(公告)号：DE69726361D1
公开(公告)日：2004-01-08
申请号：DE69726361
申请日：1997-09-01
Applicant: IBM
Inventor： BARENBOIM MICHAEL , BAUMGART PETER MICHAEL , CHRUSCH PETER B , HARPER BENNY MICHAEL , KARNI BENJAMIN , KERSTENS PIETER J M , KRAJNOVICH DOUG JOHN , POUR IRAJ KAHKESH , SEING HONG S , TAM ANDREW C
Abstract: A disk texturing tool is used, for example, to provide textured spots in an annular portion of both sides of a hardfile disk. Disks are moved into and out of the texturing process in cassettes, through two disk-handling stations. An optical system includes a laser directed at a beamsplitter to split the laser beam into two beams having approximately power, which are directed along parallel paths through a power control optics block to expose simultaneously opposite sides of a disk to be textured. The power control optics block includes means for attenuating and measuring each of the two beams. A shuttling mirror directs these two beams alternately at a disk within each of the two disk handling stations.
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Patent Agency Ranking
公开(公告)号：SG53024A1
公开(公告)日：1998-09-28
申请号：SG1997002725
申请日：1997-07-31
Applicant: IBM
Inventor： BARENBOIM MICHAEL , BAUMGART PETER MICHAEL , CHRUSCH PETER PAUL , HARPER BENNY MICHAEL , KARNI BENJAMIN , KERSTENS PIETER J M , SEING HONG S , TAM ANDREW CHING
Abstract: A disk texturing tool is used, for example, to provide textured spots in an annular portion of both sides of a disk for a hard disk drive. Disks are moved into and out of the texturing process in cassettes, through two disk-handling stations. An optical system includes a laser directed at a beamsplitter to split the laser beam into two beams having approximately power, which are directed along parallel paths through a power control optics block to expose simultaneously opposite sides of a disk to be textured. The power level of each of these two beams is controlled by a program which operates in a teach mode to develop a look up table describing laser beam power as a function of a signal driving an attenuator, in a set point mode setting this drive signal to provide a certain laser beam power, in a run mode controlling this power through a feedback loop, and in a display mode showing laser beam power as a function of time.
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7.发明专利
公开(公告)号：MY115556A
公开(公告)日：2003-07-31
申请号：MYPI9704768
申请日：1997-10-10
Applicant: IBM
Inventor： BARENBOIM MICHAEL , SCHNETZER ERIC V , SEING HONG S , TAHERI ALI REZA , TAM ANDREW CHING , BAUMGART PETER MICHAEL , CHRUSCH PETER P , HARPER BENNY MICHAEL , KARNI BENJAMIN , KERSTENS PIETER J M , LISANKE MICHAEL GERARD , LU HUIZONG , PENA LANPHUONG THI
Abstract: A DISK TEXTURING PROCESS USES A SINGLE PULSED LASER (129) TO TEXTURE DISKS (128, 128b) WITHIN A FIRST GROUP, WHICH ARE CARRIED THROUGH THE TEXTURING PROCESS ON A FIRST SPINDLE ASSEMBLY (128A), AND FROM A SECOND GROUP, WHICH ARE CARRIED THROUGH THE TEXTURING PROCESS ON A SECOND ASSEMBLY (128C). PREFERABLY, DISKS FROM THE FIRST GROUP ARE TEXTURED ALTERNATELY WITH DISKS IN THE SECOND GROUP. A FIRST LEVEL OF LEAST ONE TEXTURING PARAMETER IS STORED FOR USE ONLY AS THE PROCESS IS APPLIED TO DISK FROM THE FIRST GROUP, WHILE A SECOND LEVEL OF THE SAME TEXTURING PARAMETER IS STORED FOR USE ONLY AS THE PROCESS IS APPLIED TO DISKS FROM THE SECOND GROUP. THESE LEVELS MAY BE DERIVED FROM MEASUREMENTS OF TEXTURED SPOTS MADE WITH INTERFEROMETRIC DEVICES (126, 126A) FORMING PORTIONS OF A TEXTURING STATION.
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公开(公告)号：SG46768A1
公开(公告)日：1998-02-20
申请号：SG1997000255
申请日：1997-02-05
Applicant: IBM
Inventor： BARENBOIM MICHAEL , BAUMGART PETER MICHAEL , CHRUSCH PETER PAUL , KARNI BENJAMIN , KERSTENS PIETER J M , NGUYEN THAO ANH , SEING HONG S , TAM ANDREW CHING
Abstract: A disk texturing tool is used, for example, to provide textured spots in an annular portion of both sides of a hardfile disk. Disks are moved into and out of the texturing process in cassettes, through two disk-handling stations. In each disk-handling station, a lifter raises each individual disk from the cassette. The individual disk is then transferred to a pick-and-place mechanism, which moves it to a spindle. The spindle spins and translates the disk, so that both sides of the disk are exposed to beams derived from a pulsed laser. The pick-and-place mechanism then returns the disk to the lifter, which lowers it into the cassette pocket from which it was taken. The pick-and-place mechanism simultaneously moves one disk from the lifter to the spindle and another from the spindle to the lifter. While disks are moved by the pick-and-place mechanism of one disk-handling station, a disk in the spindle of the other disk-handling station is exposed to the laser beams.
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公开(公告)号：MY116946A
公开(公告)日：2004-04-30
申请号：MYPI9703518
申请日：1997-08-01
Applicant: IBM
Inventor： BARENBOIM MICHAEL , BAUMGART PETER MICHAEL , CHRUSCH PETER B , HARPER BENNY MICHAEL , KARNI BENJAMIN , KERSTENS PIETER J M , SEING HONG S , TAM ANDREW CHING
Abstract: A DISK TEXTURING TOOL (37) IS USED, FOR EXAMPLE, TO PROVIDE TEXTURED SPOTS IN AN ANNULAR PORTION OF BOTH SIDES OF A DISK (49, 182) FOR A HARD DISK DRIVE. DISKS ARE MOVED INTO AND OUT OF THE TEXTURING PROCESS IN CASSETTES (48,56,58, 166), THROUGH TWO DISK-HANDLING STATIONS (38, 39). AN OPTICAL SYSTEM INCLUDES A LASER (108) DIRECTED AT A BEAMSPLITTER (132) TO SPLIT THE LASER BEAM INTO TWO BEAMS HAVING APPROXIMATELY POWER, WHICH ARE DIRECTED ALONG PARALLEL PATHS THROUGH A POWER CONTROL OPTICS BLOCK (136) TO EXPOSE SIMULTANEOUSLY OPPOSITE SIDES OF A DISK TO BE TEXTURED. THE POWER LEVEL OF EACH OF THESE TWO BEAMS IS CONTROLLED BY A PROGRAM WHICH OPERATES IN A TEACH MODE TO DEVELOP A LOOK UP TABLE DESCRIBING LASER BEAM POWER AS A FUNCTION OF A SIGNAL DRIVING AN ATTENUATOR, IN A SET POINT MODE SETTING THIS DRIVE SIGNAL TO PROVIDE A CERTAIN LASER BEAM POWER, IN A RUN MODE CONTROLLING THIS POWER THROUGH A FEEDBACK LOOP, AND IN A DISPLAY MODE SHOWING LASER BEAM POWER AS A FUNCTION OF TIME.
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10.发明专利
公开(公告)号：SG53101A1
公开(公告)日：1998-09-28
申请号：SG1997003715
申请日：1997-10-10
Applicant: IBM
Inventor： BARENBOIM MICHAEL , BAUMGART PETER MICHAEL , CHRUSCH PETER PAUL , HARPER BENNY MICHAEL , KARNI BENJAMIN , KERSTENS PIETER J M , LISANKE MICHAEL GERARD , LU HUIZONG , PENA LANPHUONG THI , SCHNETZER ERIC V , SEING HONG S , TAHERI ALI REZA , TAM ANDREW CHING
Abstract: A disk texturing process uses a single pulsed laser to texture disks within a first group, which are carried through the texturing process on a first spindle assembly, and from a second group, which are carried through the texturing process on a second spindle assembly. Preferably, disks from the first group are textured alternately with disks in the second group. A first level of least one texturing parameter is stored for use only as the process is applied to disks from the first group, while a second level of the same texturing parameter is stored for use only as the process is applied to disks from the second group. These levels may be derived from measurements of textured spots made with interferometric devices forming portions of a texturing station.
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