Class 257/E21.139 - Lithium-drift (EPO)

Subclass of Class 257 - Active solid-state devices (e.g., transistors, solid-state diodes)
Definition: This subclass is indented under subclass E21.135. This subclass
No. of patents: 2
Last issue date: 12/04/2007

Number	Title	Issue Date
7303967	Method for fabricating transistor of semiconductor device Disclosed is a method for fabricating a transistor of a semiconductor device, the method comprising the steps of: providing a semiconductor; forming a gate electrode; performing a low-density ion implantation process with respect to the substrate, thereby forming an...	12/04/2007
5597762	Field-enhanced diffusion using optical activation A method of making a semiconductor material using a modified forced diffusion method includes the steps of placing the semiconductor material on a substrate in a vacuum vessel, locating an impurity atop the semiconductor material, creating a high voltage ...	01/28/1997

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