Patents
Patents for B28D 5 - Fine working of gems, jewels, crystals, e.g. of semiconductor material; Apparatus therefor (6,662)
02/1998
02/11/1998EP0823308A1 Method for fabricating silicon semiconductor discrete wafer
02/10/1998US5716876 Method for manufacturing completely circular semiconductor wafers
02/10/1998US5715807 For cutting a workpiece
02/10/1998US5715806 Multi-wire saw device for slicing a semi-conductor ingot into wafers with a cassette for housing wafers sliced therefrom, and slicing method using the same
02/04/1998EP0822054A1 Method and apparatus for mixing and continuous extrusion of polymer materials with dry pre-mixing of the material
02/02/1998CA2210268A1 Method for the mixing and continuous extrusion of polymer materials with dry pre-mixing of the material and associated machine
01/1998
01/29/1998WO1998003315A1 Hydrodynamic blade guide
01/27/1998US5711287 Reciprocating slurry saw
01/20/1998US5710065 Method and apparatus for breaking and separating dies from a wafer
01/20/1998US5709823 Accurately forming dental restorations, ceramics, metals
01/08/1998WO1998000273A1 Method and apparatus to produce a radial cut profile
01/06/1998US5705016 Method of preventing transfer of adhesive substance to dicing ring frame, pressure-sensitive adhesive sheet for use in the method and wafer working sheet having the pressure-sensitive adhesive sheet
12/1997
12/31/1997CN2271439Y Positioner for engraving and grinding gemstone
12/29/1997EP0813943A2 Cutting center
12/24/1997CN1168534A Method for producing wafer and apparatus employed therein
12/23/1997US5699782 Wire saw apparatus
12/17/1997CN1167665A 超声波振动刀具 Ultrasonic vibration tool
12/11/1997DE19723083A1 Moving wire saw apparatus for cutting of silicon@, glass, and ceramic material
12/11/1997DE19723078A1 Wire saw cut wafer cleaning method for semiconductor, magnetic or ceramic material
12/10/1997CN2269949Y Diamond strip saw bit
11/1997
11/26/1997EP0808701A2 Wire saw
11/12/1997CN1164461A Method of manufacturing resonator pieces
11/05/1997CN1163817A Method for processing jade
10/1997
10/29/1997EP0803336A2 Wire saw and work slicing method
10/29/1997CN1163476A Processing device for fine nanometer-level plane structure
10/28/1997US5681204 Device for detecting a displacement of a blade member of a slicing apparatus
10/22/1997EP0802029A2 Method for orienting plural single crystal rods on a support in view of cutting up the rods simultaneously in a cutting machine and device for carrying out the method
10/22/1997EP0802028A2 Device for detaching wafers from ingot support and stocking individualized wafers
10/21/1997US5678744 Method for cutting a hard to cut wafer
10/15/1997EP0800900A1 Ultrasonic vibration cutter
10/08/1997EP0799914A2 A method and apparatus for producing semiconductor wafers
10/08/1997EP0799680A2 Method and apparatus for cutting diamond
10/08/1997EP0799655A1 Method of Manufacturing wire for use in a wire saw and wire for use in a wire saw
10/01/1997EP0798092A2 Method of slicing semiconductor single crystal ingot
10/01/1997EP0798091A2 Wire saw and method of slicing a cylindrical workpiece, e.g. an ingot
10/01/1997EP0798090A2 Method of cutting a workpiece with a wire saw
09/1997
09/16/1997US5667423 Method and apparatus for slicing workpiece
09/12/1997WO1997032681A1 Method of cutting blocks of hard substances into plates by means of a wire saw, and wire saw for carrying out this method
09/04/1997WO1997031765A1 Wire type cutting work apparatus and method therefor
09/03/1997CN1158289A Method of producing semiconductor wafers
08/1997
08/27/1997EP0791444A1 Wafer manufacturing process
08/13/1997EP0788859A1 Wire sawing device
08/13/1997EP0788858A2 Wire sawing device
08/13/1997EP0788857A1 Wire sawing device
07/1997
07/09/1997EP0782907A1 System and method for processing ingots
06/1997
06/19/1997DE19546988A1 Semiconductor material treatment with grinding and ultrasonic cleaning
06/18/1997EP0779647A1 Method and apparatus for treatment of semiconductor material
06/04/1997CN2255346Y Spherical forming machine for button of hard stone material
05/1997
05/07/1997EP0771628A2 A fixture and method for laser fabrication by in-situ cleaving of semiconductor bars
05/07/1997DE19638991A1 Machine for wire cutting ceramic, glass or silicon workpiece
05/06/1997US5626777 Process for producing dividable plates of brittle material with high accuracy and apparatus for receiving and precision-grinding the end faces of a plate
04/1997
04/29/1997US5623916 Method and apparatus for cutting grooves into diamonds and precious stones
04/23/1997EP0740598A4 Method and apparatus for scribing and/or breaking semiconductor wafers
04/22/1997CA2105236C Method for cutting a wafer hard to cut
04/17/1997WO1997013626A1 Method of machining a thermosetting laminate
04/09/1997EP0767036A1 Wire saw having a wire management system allowing for wire rollers of very large length
04/09/1997EP0767035A1 Slurry managing system and slurry managing method for wire saws
04/08/1997US5618759 Methods of and apparatus for immobilizing semiconductor wafers during sawing thereof
04/01/1997US5616065 Wire saw and method for cutting wafers from a workpiece
03/1997
03/27/1997DE19638990A1 Cutting machine, esp. for wire slicing of blocks
03/27/1997DE19627479A1 Device for drilling hole through glass plate for e.g. sign mount
03/26/1997EP0552321B1 Methods for producing indicia on diamonds
03/19/1997CN1145531A Method and appts. for making silicon chip
03/12/1997EP0762483A1 Wafer processing system
03/11/1997US5609148 Method and apparatus for dicing semiconductor wafers
03/11/1997CA2093216C Methods for producing indicia on diamonds
02/1997
02/25/1997US5605489 Method of protecting micromechanical devices during wafer separation
02/06/1997WO1997003846A1 Marking diamond
01/1997
01/30/1997WO1997002905A1 Method and apparatus for washing silicon ingot with water to remove particulate matter
01/28/1997US5597345 Apparatus for making an aperture in a tile
01/15/1997CN1140124A Method and apparatus for processing reference plane of Si 111 crystal ingot with one-step process
01/02/1997EP0750972A1 Ingot slicing machine with built-in grinder
12/1996
12/27/1996EP0749817A1 Wire saw slicing apparatus and slicing method
12/27/1996EP0749799A2 Die insert method and method for producing same
12/18/1996EP0720521A4 Apparatus and method for dicing semiconductor wafers
12/11/1996EP0747187A2 Apparatus and method for wire cutting glass-ceramic wafers
12/10/1996US5582536 Apparatus and method for manufacturing wafer
12/04/1996EP0745464A2 Wire saw slicing apparatus and slicing method using the same
12/04/1996EP0745447A1 Wire saw apparatus
11/1996
11/27/1996EP0744796A1 Method and device for carrying out the cleavage in ultra-high-vacuum environment of portions of a processed semiconductor wafer
11/27/1996EP0744236A1 Wire saw and method for cutting wafers from an ingot
11/20/1996EP0743140A2 Wire saw
11/19/1996US5575189 Roller having grooves for wire saw
11/13/1996EP0742066A2 Wire saw
11/12/1996US5573684 Methods for producing indicia on diamonds
11/06/1996EP0740598A1 Method and apparatus for scribing and/or breaking semiconductor wafers
11/05/1996US5571040 Method and device for detecting blade flexure and blade flexure control device for use with a slicing machine
10/1996
10/23/1996EP0738572A1 Method for orienting monocrystals for cutting in a cutting machine and device for performing the method
10/15/1996US5564409 Apparatus and method for wire cutting glass-ceramic wafers
10/08/1996US5561912 Three axis goniometer
10/02/1996EP0734824A2 Method and apparatus for dicing semiconductor wafers
10/02/1996EP0734823A1 Method and apparatus for slicing workpiece
10/01/1996US5560241 Synthetic single crystal diamond for wire drawing dies
09/1996
09/25/1996EP0733429A1 Wire saw and method for cutting wafers from a workpiece
09/18/1996EP0732173A1 Wire saw
09/04/1996EP0729815A1 Method of producing slices
09/03/1996US5551618 Apparatus for cutting plate-shaped brittle material
08/1996
08/14/1996CN2232832Y Verticle spherical ruling engine
07/1996
07/25/1996DE19501852A1 One=dimensional micro lens mfr. for esp. high power diode laser technology
07/10/1996EP0721208A2 Integrated circuit processing
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