Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Semiconductor memory device and fabrication thereof










Image Number 3 for United States Patent #7332390.

A semiconductor memory device and fabrication method thereof. In a semiconductor memory device, each memory cell comprises a deep trench and a capacitor disposed on the lower portion thereof. A collar oxide layer having a first second sidewalls is disposed on the deep trench. The top of the first sidewall is at the same height as the surface of the semiconductor substrate. The top of the second sidewall is substantially equal to the top of the capacitor. The memory cell further comprises a buried conductor layer disposed on the second sidewall and the capacitor and a buried strap adjoining the buried conductive layer, and a transistor disposed on the surface of the semiconductor substrate and electrically connected to the capacitor through the buried strap and the buried conductive layer.








 
 
  Recently Added Patents
Lead with lead stiffener for implantable electrical stimulation systems and methods of making and using
Ion generation using wetted porous material
Silicas and alkali metal salt compositions, detergents formed from such compositions and method of forming such compositions and detergents
Method and system for monitoring service quality in a mobile node
Smartphone
Semiconductor device
Content display monitor
  Randomly Featured Patents
Process for purifying air by adsorption before cryogenic distillation
Cooler
Underbalanced well completion
Creeper
Miniature computer
Alcohol dissociation reactor for motor vehicles
Device for closing the side ends of a package enclosing one roll or rolls of material in an automatic packaging machine
Decentered prism optical system
Semiconductor memory device with decoder for chip selection/write in
Phase change memory device capable of reducing disturbance and method of manufacturing the same