Patent ID: 6888730
Filing Date: 2005-05-03
Classification: G11C

Abstract:
1. A content addressable memory (CAM) cell having a plurality of 6T ternary memory cells in a fabricated semiconductor material, each half of the CAM cell comprising: an equal number of transistors of a p-type and an n-type, the p-type transistors being formed in a n-well region and the n-type transistors being formed in a p-well region of said semiconductor material, the p-wells being separated from the n-wells by at most one p+ to n+ region spacing, the transistors being interconnected to form said half CAM cell and wherein the interconnections between the half CAM cell are restricted to a first group of conductive layers and connections between said CAM cell and CAM signal lines external to said CAM cell are formed in a second group of conductive layers.