摘要:
Multiple trench depths within an integrated circuit device are formed by first forming trenches in a substrate to a first depth, but of varying widths. Formation of a dielectric layer can cause some of the trenches to fill or close off while leaving other, wider trenches open. Removal of a portion of the dielectric material can then be tailored to expose a bottom of the open trenches while leaving remaining trenches filled. Removal of exposed portions of the underlying substrate can then be used to selectively deepen the open trenches, which can subsequently be filled. Such methods can be used to form trenches of varying depths without the need for subsequent masking.
摘要:
Multiple trench depths within an integrated circuit device are formed by first forming trenches in a substrate to a first depth, but of varying widths. Formation of a dielectric layer can cause some of the trenches to fill or close off while leaving other, wider trenches open. Removal of a portion of the dielectric material can then be tailored to expose a bottom of the open trenches while leaving remaining trenches filled. Removal of exposed portions of the underlying substrate can then be used to selectively deepen the open trenches, which can subsequently be filled. Such methods can be used to form trenches of varying depths without the need for subsequent masking.
摘要:
Multiple trench depths within an integrated circuit device are formed by first forming trenches in a substrate to a first depth, but of varying widths. Formation of a dielectric layer can cause some of the trenches to fill or close off while leaving other, wider trenches open. Removal of a portion of the dielectric material can then be tailored to expose a bottom of the open trenches while leaving remaining trenches filled. Removal of exposed portions of the underlying substrate can then be used to selectively deepen the open trenches, which can subsequently be filled. Such methods can be used to form trenches of varying depths without the need for subsequent masking.
摘要:
Multiple trench depths within an integrated circuit device are formed by first forming trenches in a substrate to a first depth, but of varying widths. Formation of a dielectric layer can cause some of the trenches to fill or close off while leaving other, wider trenches open. Removal of a portion of the dielectric material can then be tailored to expose a bottom of the open trenches while leaving remaining trenches filled. Removal of exposed portions of the underlying substrate can then be used to selectively deepen the open trenches, which can subsequently be filled. Such methods can be used to form trenches of varying depths without the need for subsequent masking.
摘要:
An operating method for a non-volatile memory device is applicable on a non-volatile memory device in which a substrate is disposed. The substrate includes a trench, a first conductive type first well region disposed in the substrate, and a second conductive type second well region disposed above the first conductive type first well region. The operating method includes applying a first voltage to a control gate, a second voltage to a drain region, and a third voltage to a source region. Besides, a channel F-N tunneling effect is employed to program a memory cell.
摘要:
A non-volatile memory is provided. A substrate has at least two isolation structures therein to define an active area. A well is located in the substrate. A shallow doped region is located in the well. At least two stacked gate structures are located on the substrate. Pocket doped regions are located in the substrate at the peripheries of the stacked gate structures; each of the pocket doped regions extends under the stacked gate structure. Drain regions are located in the pocket doped regions at the peripheries of the stacked gate structures. An auxiliary gate layer is located on the substrate between the stacked gate structures. A gate dielectric layer is located between the auxiliary gate layer and the substrate and between the auxiliary gate layer and the stacked gate structure. Plugs are located on the substrate and extended to connect with the pocket doped region and the drain regions therein.
摘要:
A non-volatile memory having a plurality of gate structures, a plurality of charge storage layers and two doped regions is provided. The gate structures are disposed on the substrate and connected in series. The charge storage layers are disposed between every two neighboring gate structures respectively. The gate structures and the charge storage layers form a memory cell column. The two doped regions are disposed in the substrate at both sides of the memory cell column.
摘要:
A non-volatile memory including a plurality of memory units is provided. Each of the memory units includes a first memory cell and a second memory cell. The first memory cell is disposed over the substrate. The second memory cell is disposed next to the sidewall of the first memory cell and over the substrate. The first memory cell includes a first gate disposed over the substrate, a first composite dielectric layer disposed between the first gate and the substrate. The second memory cell includes a second gate disposed over the substrate and a second composite dielectric layer disposed between the second gate and the substrate and between the second gate and the first memory cell. Each of the first and second composite dielectric layers includes a bottom dielectric layer, a charge-trapping layer and a top dielectric layer.
摘要:
A static random access memory cell with metal fill to form capacitors for increasing the capacitance of the memory cell. More specifically, a semiconductor device including a structure having an upper surface and a contact surface formed at the upper surface of the structure. A dielectric material is formed over the contact surface with a first conductive node and a second conductive node extending beyond the dielectric material. Dielectric spacers are formed around the first and second conductive nodes and conductive elements are formed between the dielectric spacers. The conductive elements and spacers form capacitors without implementing additional masking steps.
摘要:
A semiconductor device and a method of making it are described. During the formation of the semiconductor device, a hard mask is formed of an etch-resistant material. The mask prevents etchant from etching an area within a dielectric material near a conductive plug. The mask may be formed of a nitride. Conductive material is then deposited withinan etched via and is contacted with the conductive plug.