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
Polymer compositions and nonwoven compositions prepared therefrom
System, method and apparatus for pausing multi-channel broadcasts
Medical diagnosis, therapy, and prognosis system for invoked events and methods thereof
Process for preparing substituted aromatic carboxylic acids
Nuclear reactor building and construction method thereof
Method and system for simulating superimposition of a non-linearly stretchable object upon a base object using representative images
Cache memory control device, semiconductor integrated circuit, and cache memory control method
  Randomly Featured Patents
Syntactic landmine detector
Classification of patient conditions using known and artificial classes
Home entertainment system providing presence and mobility via remote control authentication
Rotary contactless connector and non-rotary contactless connector
High power amplifier linearization method using extended saleh model predistortion
Golf club head
Magnetic separator apparatus
Structure of joining printed circuit boards and process for producing the same
Universal mounting for a vehicle rear view mirror
Displacement detector for detecting an amount of displacement of an object to be measured