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US 2011/0256679 A1Published application
Non-volatile storage having a connected source and well
AssigneeSanDisk Technologies LLC
InventorMasaaki Higashitani
Life of this patent
Estimating the term…
Abstract
A non-volatile storage device is disclosed that includes a set of connected non-volatile storage elements formed on a well, a bit line contact positioned in the well, a source line contact positioned in the well, a bit line that is connected to the bit line contact, and a source line that is connected to the source line contact and the well.
Claims18
A method for fabricating non-volatile storage, comprising:
- forming a first set of non-volatile storage elements on a well;
- forming a first bit line contact in said well for said first set of non-volatile storage elements;
- forming a first source line contact in said well for said first set of non-volatile storage elements;
- forming a first bit line that connects to said first bit line contact without protruding into said well;
- and
- intentionally forming a source line that extends into said first source line contact and extends into said well.
3 more elements
A method for fabricating non-volatile storage, comprising:
- forming a plurality of NAND strings on a well, said NAND strings include bit line contacts;
- forming a plurality of bit lines that connect to said NAND strings and terminate at said bit line contacts;
- and
- intentionally forming a source line that connects to all of said NAND strings and said well.
1 more element
A method for fabricating non-volatile storage, comprising:
- forming a first dielectric layer on a well;
- forming a first gate layer on said first dielectric layer;
- forming a second dielectric layer on said first gate layer;
- forming a second gate layer on said second dielectric layer;
- creating source/drain regions, bit line contacts and source line contacts in said well;
- creating bit lines that connect to said bit line contacts and that do not connect to said well;
- and
- creating a source line that connects to said source line contacts and connects to said well.
5 more elements
Dependencies are inferred from the claim text.