| Patent Number |
Title Of Patent |
Date Issued |
| 6376797 |
Laser cutting of semiconductor materials |
April 23, 2002 |
| A method of cutting thin bodies of silicon so as to minimize edge damage comprises traversing said bodies with the beam of a pulsed laser in a vacuum or in the presence of forming gas or a noble gas. |
| 5558712 |
Contoured inner after-heater shield for reducing stress in growing crystalline bodies |
September 24, 1996 |
| An apparatus for growing hollow crystalline bodies by the EFG process, comprising an EFG die having a top surface shaped for growing a hollow crystalline body having a cross-sectional configuration in the shape of a polygon having n faces, and a radiation shield adjacent to and surrounde |
| 4443411 |
Apparatus for controlling the atmosphere surrounding a crystal growth zone |
April 17, 1984 |
| Method and apparatus for using a gas mixture containing an additive gas capable of beneficially altering the physical or chemical properties of a crystallized body grown from a melt by means of a shaping member. A suitable mixture of an inert gas and the additive gas is directed subs |
| 4430305 |
Displaced capillary dies |
February 7, 1984 |
| An asymmetrical shaped capillary die made exclusively of graphite is used to grow silicon ribbon which is capable of being made into solar cells that are more efficient than cells produced from ribbon made using a symmetrically shaped die. |
| 4415401 |
Control of atmosphere surrounding crystal growth zone |
November 15, 1983 |
| The invention pertains to growth of silicon bodies from a melt and comprises enveloping the liquid/solid interface with a mixture of an inert gas and more than a trace amount of a carbon-containing gas. The carbon-containing gas may be a compound of carbon and oxygen such as CO or CO |
| 4353757 |
Displaced capillary dies |
October 12, 1982 |
| An asymmetrical shaped capillary die made exclusively of graphite is used to grow silicon ribbon which is capable of being made into solar cells that are more efficient than cells produced from ribbon made using a symmetrically shaped die. |
