A flash memory cell comprising a silicon-germanium layer with a pair of source/drain regions. A strained silicon layer is formed over the silicon-germanium layer such that the pair of source/drain regions is linked by a channel in the strained silicon layer. A floating gate layer is formed over the channel. The floating gate layer has at least one charge storage region. The floating gate layer may be a planar floating gate, a planar split floating gate, or a vertical split floating gate. A control gate is formed over the floating gate layer. Ballistic direct injection is used to program the memory cell. A first charge storage region of the floating gate layer establishes a virtual source/drain region in the channel. The virtual source/drain region has a lower threshold voltage than the remaining portion of the channel.

 
Web www.patentalert.com

> Process for erasing chalcogenide variable resistance memory bits

~ 00349