Resources Contact Us Home
Semiconductor memory device with vertical channel transistor and method of fabricating the same

Image Number 17 for United States Patent #7387931.

In a semiconductor memory device having a vertical channel transistor a body of which is connected to a substrate and a method of fabricating the same, the semiconductor memory device includes a semiconductor substrate including a plurality of pillars arranged spaced apart from one another, and each of the pillars includes a body portion and a pair of pillar portions extending from the body portion and spaced apart from each other. A gate electrode is formed to surround each of the pillar portions. A bitline is disposed on the body portion to penetrate a region between a pair of the pillar portions of each of the first pillars arranged to extend in a first direction. A wordline is disposed over the bitline, arranged to extend in a second direction intersecting the first direction, and configured to contact the side surface of the gate electrode. A first doped region is formed in the upper surface of each of the pillar portions of the pillar. A second doped region is formed on the body portion of the pillar and connected electrically to the bitline. Storage node electrodes are connected electrically to the first doped region and disposed on each of the pillar portions.

  Recently Added Patents
Method and computer system for automatic vectorization of a vessel tree
Quantifying the risks of applications for mobile devices
Light emitting device
Structure of circuit board and method for fabricating the same
Switched capacitor hold-up scheme for constant boost output voltage
Flexible quantization
High-performance AHCI interface
  Randomly Featured Patents
Method and apparatus for reducing particle contamination in a substrate processing chamber
Method for making pieces for a magnetic resonance imaging magnet
Method for mounting a magnetic head on a suspension arm
SiC semiconductor device
Servo actuator control/damping mechanism and method
Dual lens optical system and digital camera module including the same
Exposure mask used for manufacturing a semiconductor device having impurity layer and a semiconductor device
Laser marking system
Laminar type telephone connector block
Recombinant vaccine against bluetongue virus