Patents
Patents for B28D 5 - Fine working of gems, jewels, crystals, e.g. of semiconductor material; Apparatus therefor (6,662)
08/1980
08/26/1980US4219199 Molybdenum insoluble in hydrogen peroxide
08/19/1980CA1084172A1 Process for slicing boules of single crystal material
07/1980
07/23/1980EP0013327A1 Punching device for thin plate-shaped workpieces
07/22/1980US4213698 Apparatus and method for holding and planarizing thin workpieces
07/08/1980US4211040 Process for machining silicon rods and tubes by abrasion
06/1980
06/24/1980US4209129 Cooling manifold for multiple solenoid operated punching apparatus
06/24/1980US4209005 Apparatus for cutting silicon having a pivoted work carriage utilizing an air bearing
05/1980
05/27/1980US4204515 Apparatus for machining workpieces by abrasion
05/27/1980CA1078531A1 Device for taking-off slices
04/1980
04/01/1980US4195758 Apparatus for separating snapstrates into individual hybrid substrates
03/1980
03/18/1980US4193783 Method of treating a silicon single crystal ingot
03/04/1980US4191159 System for slicing silicon wafers
02/1980
02/19/1980US4188936 Method for increasing the cutting performance of reciprocating slurry saws and a reciprocating slurry saw for carrying out this method
02/12/1980US4187828 Cutting
02/12/1980US4187827 Process for multiple lap cutting of solid materials
01/1980
01/22/1980US4184472 Method and apparatus for slicing crystals
01/09/1980EP0006827A1 Method of working polycristalline synthetic diamond
12/1979
12/25/1979US4180048 For dicing semiconductor wafers
12/25/1979CA1068793A Method and apparatus for cutting insulating material
12/18/1979US4178670 Process of forming a wire pack
09/1979
09/11/1979US4167174 Method and apparatus for aligning the streets of a semiconductor wafer
09/04/1979US4166574 Apparatus for marking identification symbols on wafer
07/1979
07/17/1979US4161167 Lap cutting blades
07/10/1979US4160439 Cutting-off machine for hard bodies
06/1979
06/05/1979CA1055907A1 Snapping of sheets of glass
05/1979
05/15/1979US4154025 Method for preparing oxide piezoelectric material wafers
05/08/1979US4153662 Casting in a contoured vulcanized mold
04/1979
04/24/1979US4150912 Twin blade mounting and tensioning apparatus
04/24/1979CA1053383A1 Semiconductor wafer dicing fixture
04/04/1979EP0001326A1 A rotatable sleeve for guiding a web of wire strands
03/1979
03/27/1979US4146262 Device for taking-off slices
02/1979
02/20/1979US4140260 System for separating a semiconductor wafer with discrete pellets
02/06/1979US4138304 Semiconductors, pelletization
01/1979
01/16/1979US4134384 Wire saw with rotatable guide sleeve
12/1978
12/26/1978US4131267 Apparatus for holding workpiece by suction
12/05/1978US4127969 Method of making a semiconductor wafer
10/1978
10/17/1978CA1040748A1 Apparatus and method for orienting monocrystalline material for sawing
08/1978
08/08/1978US4105012 Apparatus for cutting up hard and brittle material
06/1978
06/06/1978US4092972 Process of cutting wafers
06/06/1978US4092971 Self-contained, multi-blade package for slurry saws and the like
04/1978
04/18/1978US4084354 Process for slicing boules of single crystal material
04/11/1978US4083352 Method for cutting ornamental transparent gemstones and products produced therefrom
04/11/1978US4083351 Fluted diamond drill
02/1978
02/28/1978US4076007 Gemstone drill
01/1978
01/24/1978US4069805 Wire apparatus for abrasive powder machining
01/17/1978US4068788 Method for cracking brittle material
12/1977
12/20/1977US4063482 Machine tool indexing mechanism
11/1977
11/15/1977US4058223 Article handling device
10/1977
10/04/1977US4052584 Method and apparatus for cutting insulating material
10/04/1977US4052132 Method and apparatus for drilling fine holes in frangible workpieces
09/1977
09/13/1977US4047828 Core drill
08/1977
08/30/1977US4044937 Multiple ball element wafer breaking apparatus
07/1977
07/26/1977US4037830 Wafer handler
04/1977
04/12/1977US4016855 Grinding method
01/1977
01/11/1977US4002410 Apparatus and method for orienting monocrystalline material for sawing
08/1976
08/24/1976US3976288 Semiconductor wafer dicing fixture
07/1976
07/20/1976US3970819 Backside laser dicing system
07/13/1976US3969004 Air bearing piston assembly for semiconductor mask-to-wafer aligner
05/1976
05/25/1976US3958733 Method for simultaneously breaking a plurality of frangible sheets
05/18/1976US3957028 Wire-type cutting machine
05/04/1976US3954096 Method of working, forming and finishing single crystals
03/1976
03/09/1976US3942508 Wire-saw
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