Method and apparatus for coupling to a source line in a...

Details Method and apparatus for coupling to a source line in a... Method and apparatus for coupling to a source line in a...

2007-05-15

2007-05-15

Menz, Douglas M. (Department: 2891)

Active solid-state devices (e.g., transistors, solid-state diode

Gate arrays

With particular signal path connections

C257S202000, C257S203000, C257S314000

Reexamination Certificate

active

10658937

ABSTRACT:
A method and apparatus for coupling to a source line. Specifically, embodiments of the present invention disclose a memory device comprising an array of flash memory cells with a source line connection that facilitates straight word lines, and a method for producing the same. The array is comprised of a plurality of non-intersecting shallow trench isolation (STI) regions that isolate a plurality of memory cell columns. A source column implanted with n-type dopants is also isolated between an adjoining pair of STI regions. The source column is coupled to a plurality of common source lines that are coupled to a plurality of source regions in the array. A source contact is coupled to the source column for providing electrical coupling with the plurality of source regions. The source contact is located along a row of drain contacts that are coupled to drain regions of a row of memory cells.

REFERENCES:
patent: 6765257 (2004-07-01), Mehrad et al.

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