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US 7,402,868 B2Granted
System and method for protecting semiconductor devices
AssigneeSpansion LLC
InventorsIhsan Jahed Djomehri, Mark Randolph, Yi He, Wei Zheng
Life of this patent
Estimating the term…
Abstract
A semiconductor memory device includes a group of word lines and a structure that is configured to dissipate current from the group of word lines during fabrication of the semiconductor memory device.
Claims19
A semiconductor memory comprising:
- a plurality of charge trapping layers;
- a plurality of word lines, where each charge trapping layer is electrically insulated from a word line of the plurality of word lines;
- a capacitor;
- a first structure connected to the capacitor;
- and
- a plurality of second structures, each of the second structures being associated with a different word line of the plurality of word lines and being configured to connect the associated word line to the first structure.
3 more elements
A semiconductor memory device comprising:
- a vertical stack including a charge trapping layer electrically insulated from one word line of a plurality of word lines;
- and
- a structure configured to dissipate current from the plurality of word lines during fabrication of the semiconductor memory device, the structure comprising:
- a thin-oxide capacitor,
- a polysilicon strap connected to the thin-oxide capacitor, and
- a plurality of polysilicon extensions, each polysilicon extension being connected to a different word line of the plurality of word lines and connecting the word line to the polysilicon strap.
3 more elements
A memory cell comprising:
- a vertical stack including a charge trapping layer electrically insulated from a word line disposed on the stack;
- a capacitor electrically coupled to the word line;
- a first structure to connect the word line to the capacitor and leak current from the word line to the capacitor;
- and
- a metal-1 tap configured to connect the first structure to a substrate and leak current to the substrate.
2 more elements
Dependencies are inferred from the claim text.