Compact semiconductor memory device having reduced number of contacts, methods of operating and methods of making

摘要

An integrated circuit including a link or string of semiconductor memory cells, wherein each memory cell includes a floating body region for storing data. The link or siring includes at least one contact configured to electrically connect the memory cells to at least one control line, and the number of contacts in the string or link is the same as or less than the number of memory cells in the string or link.

主权项

1. An integrated circuit comprising:
a link or string of semiconductor memory cells, wherein each said semiconductor memory cell comprises: a floating body region for storing charge indicating a state of said semiconductor memory cell; and a back-bias region; wherein applying a voltage to said back-bias region results in at least two stable floating body charge levels; wherein said link or string comprises at least one contact configured to electrically connect said semiconductor memory cells to at least one control line; and wherein a number of said at least one contact is the same as or less than a number of said semiconductor memory cells in said link or string.