Active solid-state devices (e.g. – transistors – solid-state diode – Field effect device – Having insulated electrode
Reexamination Certificate
2007-03-13
2007-03-13
Andujar, Leonardo (Department: 2826)
Active solid-state devices (e.g., transistors, solid-state diode
Field effect device
Having insulated electrode
C257S213000, C257S288000, C257S314000, C257S315000, C257SE27103
Reexamination Certificate
active
11320850
ABSTRACT:
A multi-storage nonvolatile memory of high density, high speed and high reliability has a memory transistor and switch transistors disposed on both the sides of the memory transistor. The memory transistor includes a gate insulating film having discrete traps and a memory gate electrode, whereas the switch transistors include switch gate electrodes. The gate insulating film has the discrete traps for storing information charge, can locally inject carriers, and one memory cell constitutes a multi-storage cell for storing at least information of 2 bits. The switch transistors having the switch gate electrodes realize source side injection. The memory transistor is fommed together with the switch transistors in self-aligned diffusion. The memory gate electrode of the memory transistor is connected to a word line so as to perform word-line erase.
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Kamigaki Yoshiaki
Katayama Kozo
Kato Masataka
Minami Shin-ichi
Andujar Leonardo
Mattingly ,Stanger ,Malur & Brundidge, P.C.
Quinto Kevin
Renesas Technology Corp.
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