Dual-Port Semiconductor Memory and First In First Out (FIFO) Memory Having Electrically Floating Body Transistor
1 Assignment
0 Petitions
Accused Products
Abstract
Multi-port semiconductor memory cells including a common floating body region configured to be charged to a level indicative of a memory state of the memory cell. The multi-port semiconductor memory cells include a plurality of gates and conductive regions interfacing with said floating body region. Arrays of memory cells and method of operating said memory arrays are disclosed for making a memory device.
-
Citations
38 Claims
-
1-19. -19. (canceled)
-
20. A multi-port semiconductor memory cell comprising:
-
a plurality of gates; a common body region of a first conductivity type configured to store a charge that is indicative of a memory state of said multi-port semiconductor memory cell; and a plurality of conductive regions of a second conductivity type, wherein adjacent ones of each of said plurality of gates are separated by a respective one of the plurality of conductive regions, and wherein the common body region extends continuously beneath at least one of the plurality of conductive regions; wherein one of said plurality of conductive regions of a second conductivity type is electrically connected to a back bias terminal; and wherein applying a voltage to said back bias terminal results in at least two stable common body region charge levels. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27)
-
-
28. A semiconductor memory cell comprising:
-
a plurality of bipolar devices; and a common base region of a first conductivity type configured to store a charge that is indicative of a memory state of said semiconductor memory cell; wherein adjacent ones of each of said bipolar devices are separated by a conductive region having a second conductivity type; wherein said common base region is shared among said plurality of bipolar devices; and wherein one of said plurality of bipolar devices is configured to maintain the charge stored in said common base region. - View Dependent Claims (29, 30, 31, 32)
-
-
33. A semiconductor memory cell comprising:
-
a substrate region; a plurality of gates; a common body region of a first conductivity type configured to store a charge that is indicative of a memory state of said semiconductor memory cell; a plurality of conductive regions of a second conductivity type, wherein adjacent ones of each of said plurality of gates are separated by a respective one of the plurality of conductive regions, and wherein the common body region extends continuously beneath at least one of the plurality of conductive regions; and an insulator layer located beneath said common body region insulating said common body region from the substrate; wherein one of said plurality of conductive regions of a second conductivity type is electrically connected to a back bias terminal; and wherein applying a voltage to said back bias terminal results in at least two stable common body region charge levels. - View Dependent Claims (34, 35, 36, 37, 38)
-
Specification