Abstract:
A memory cell system is provided including a first insulator layer over a semiconductor substrate, a charge trap layer over the first insulator layer, and slot where the charge trap layer includes a second insulator layer having the characteristic of being grown.
Abstract:
A method and apparatus for storing information is provided. A core region of memory includes a semiconductor layer, at least one shallow trench, an insulator, and a charge-trapping layer. The semiconductor layer includes at least one source/drain region, and the insulator disposed above the source/drain region. The charge trapping layer is within the insulator, and the charge trapping layer is above the entire width of the source/drain region, and extends at least one angstrom beyond the width of the source/drain region, so that a portion the charge trapping layer extends into at least one shallow trench.
Abstract:
A method for fabricating a memory device with a self-aligned trap layer which is optimized for scaling is disclosed. In the present invention, a non-conformal oxide is deposited over the charge trapping layer to form a thick oxide on top of the core source/drain region and a pinch off and a void at the top of the STI trench. An etch is performed on the pinch-off oxide and the thin oxide on the trapping layer on the STI oxide. The trapping layer is then partially etched between the core cells. A dip-off of the oxide on the trapping layer is performed. And a top oxide is formed. The top oxide converts the remaining trap layer to oxide and thus isolate the trap layer.
Abstract:
A method for fabricating a memory device with a self-aligned trap layer which is optimized for scaling is disclosed. In the present invention, a non-conformal oxide is deposited over the charge trapping layer to form a thick oxide on top of the core source/drain region and a pinch off and a void at the top of the STI trench. An etch is performed on the pinch-off oxide and the thin oxide on the trapping layer on the STI oxide. The trapping layer is then partially etched between the core cells. A dip-off of the oxide on the trapping layer is performed. And a top oxide is formed. The top oxide converts the remaining trap layer to oxide and thus isolate the trap layer.
Abstract:
A memory cell string is disclosed. The memory cell string includes a first select gate that includes a first plurality of elements. A plurality of wordlines are coupled to the first select gate and a second select gate, that includes a second plurality of elements, is coupled to the plurality of wordlines. The distances between one element of the first and the second plurality of elements and the plurality of wordlines are the same as the distances that exist between each wordline of the plurality of wordlines.
Abstract:
A NAND flash memory cell string having scaled down select gates. The NAND flash memory cell string includes a first select gate that has a width of 140 nm or less and a plurality of wordlines that are coupled to the first select gate. Gates associated with the plurality of wordlines are formed of p+ polysilicon. A second select gate that has a width of 140 nm or less is coupled to the plurality of wordlines.
Abstract:
An integrated circuit memory device, in one embodiment, includes a substrate and first and second inter-level dielectric layers successively disposed on the substrate. One or more contacts in the peripheral extend through the first inter-level dielectric layer to respective components. One or more vias and a plurality of dummy vias extend through the second inter-level dielectric layer in the peripheral area. Each of the one or more peripheral vias extend to a respective peripheral contact. The peripheral dummy vias are located proximate the peripheral vias.
Abstract:
A flash memory cell includes a charge storage element that includes at least a first layer and a second layer. One of the layers includes silicon-rich silicon nitride and the other layer includes silicon nitride. More specifically, the ratio of silicon-to-nitrogen in the first layer is greater than the ratio of silicon-to-nitrogen in the second layer.
Abstract:
An embodiment of the present invention is directed to a method of forming a memory cell. The method includes etching a trench in a substrate and filling the trench with an oxide to form a shallow trench isolation (STI) region. A portion of an active region of the substrate that comes in contact with the STI region forms a bitline-STI edge. The method further includes forming a gate structure over the active region of the substrate and over the STI region. The gate structure has a first width substantially over the center of the active region of the substrate and a second width substantially over the bitline-STI edge, and the second width is greater than the first width.
Abstract:
An integrated circuit system is provided including forming a memory section having a spacer with a substrate, forming an outer doped region of the memory section in the substrate, forming a contact on the outer doped region, thinning the contact for forming a thinned contact, and forming a metal plug on the thinned contact.