Patent ID: 7508022

Claim:
A semiconductor device comprising: a cell electrically connected to metal lines, wherein said cell comprises a capacitor, a memory transistor having a source/drain region connected to a storage node of said capacitor, a search transistor having a gate electrode connected to the storage node of said capacitor, and a contact electrically connecting a match line included among said metal lines with a source/drain region of said search transistor, said match line extending in a first direction, wherein said storage node comprises a first portion having a first width in said first direction in plan view and a second portion having a second width larger than said first width in said first direction in plan view, wherein said contact is adjacent to said first portion in said first direction, and wherein said storage node is symmetric about one center line of said storage node extending in second direction perpendicular to said first direction, and is asymmetric about another center line of said storage node extending in said first direction, in plan view.