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US 7,031,182 B2Granted
Rectifying charge storage memory circuit
OwnerMichael L. Beigel, John Leipperinventors
Life of this patent
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Abstract
A composite rectifying charge storage device, consisting of a rectifier and capacitor which share common elements, is provided in a memory circuit or memory cell. In one form, the memory cell is adapted for alternative operation as a random access memory (RAM) or as a read only memory (ROM).
Claims33
A memory circuit, comprising;
- at least one memory cell including a word line and a bit line;
- and
- a composite rectifying charge storage device within said memory cell and coupled between said word line and said bit line;
- said composite rectifying charge storage device comprising a rectifier component fabricated with a common conductor forming a side of the rectifier component, and a capacitor component fabricated as a single unitary structure with the rectifier component such that the capacitor component incorporates the common conductor of the rectifier component as a side of the capacitor component, the capacitor component to receive rectified current from the rectifier component over the common conductor.
1 more element
A memory circuit, comprising;
- a matrix of memory cells each coupled to and separately addressable by a corresponding one of a plurality of word lines and a corresponding one of a plurality of bit lines;
- and
- a plurality of composite rectifying charge storage devices each disposed within a respective one of said memory cells and coupled between the word line and bit line associated with said one of said memory cells;
- each of said composite rectifying charge storage devices comprising a rectifier component fabricated with a common conductor forming a side of the rectifier component, and a capacitor component fabricated as a single unitary structure with the rectifier component such that the capacitor component incorporates the common conductor of the rectifier component as a side of the capacitor component, the capacitor component to receive rectified current from the rectifier component over the common conductor.
1 more element
Dependencies are inferred from the claim text.