Integrated Materials, Incorporated

David B Ackard

Raanan Y Zehavi

Robert L Davis

James W Govorko

A method of welding two silicon workpieces () together into one member without the formation of cracks along the weld. A first method passes current () through one or both of the workpieces to heat them to between 600 and 900&#xb0; C. Then an electric, laser, or plasma welder () passes along the seam () between the workpieces to weld them together. A second method passing current () through a plate (), preferably formed of silicon, which either supports the workpieces or is brought into contact with at least one of them, whereby the workpieces are preheated prior to the welding operation.

Two heat sources for welding silicon

Two silicon workpieces ( ) welded together into one member without the formation of cracks along the weld. It may be formed by a first method in which current ( ) is passed through one or both of the workpieces to heat them to between 600 and 900&deg; C. Then an electric, laser, or plasma welder ( ) passes along the seam ( ) between the workpieces to weld them together. In a second forming method, current ( ) is passed through a plate ( ), preferably formed of silicon, which either supports the workpieces or is brought into contact with at least one of them, whereby the workpieces are preheated prior to the welding operation.

Welded silicon member

A method and apparatus for welding together two silicon workpieces ( ) without the formation of cracks along the weld. In a first embodiment, current ( ) is passed through one or both of the workpieces to heat them to between 600 and 900&deg; C. Then an electric, laser, or plasma welder ( ) passes along the seam ( ) between the workpieces to weld them together. In a second embodiment, current ( ) is passed through a plate ( ), preferably formed of silicon, which either supports the workpieces or is brought into contact with at least one of them, whereby the workpieces are preheated prior to the welding operation.

Method for welding silicon workpieces

A method and apparatus for welding together two silicon workpieces (,) without the formation of cracks along the weld. In a first embodiment, current (,) is passed through one or both of the workpieces to heat them to between 600 and 900&deg; C. Then an electric or plasma welder (,) passes along the seam (,) between the workpieces to weld them together. In a second embodiment, current (,) is passed through a silicon plate (,) which either supports the workpieces or is brought into contact with at least one of them, whereby the workpieces are preheated prior to the welding operation.

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San Jose, CA, United States of America

David B Ackard