摘要:
A semiconductor wafer processing apparatus may include a chuck and/or a focus ring. The chuck may be configured to hold a wafer. The focus ring may be disposed surrounding a rim of the chuck. The focus ring may include a first section formed of a first material and a second section formed of a second material. The first material and the second material may have different conductivities. A method of forming a semiconductor wafer processing apparatus may include forming a first section of a focus ring from a first material, forming a second section of the focus ring from a second material having a different conductivity than the first material, combining the first and second sections to form a focus ring, and/or arranging the focus ring so as to surround a chuck.
摘要:
A method of manufacturing a non-volatile semiconductor memory device begins by forming a dielectric layer pattern having an ONO composition on a substrate. A polysilicon layer is formed on the substrate including over the dielectric layer pattern. The polysilicon layer is patterned to form a split polysilicon layer pattern that exposes part of the dielectric layer pattern. The exposed dielectric layer is etched, and then impurities are implanted into portions of the substrate using the split polysilicon layer pattern as a mask to thereby form a source region having a vertical profile in the substrate.
摘要:
A method of manufacturing a non-volatile semiconductor memory device begins by forming a dielectric layer pattern having an ONO composition on a substrate. A polysilicon layer is formed on the substrate including over the dielectric layer pattern. The polysilicon layer is patterned to form a split polysilicon layer pattern that exposes part of the dielectric layer pattern. The exposed dielectric layer is etched, and then impurities are implanted into portions of the substrate using the split polysilicon layer pattern as a mask to thereby form a source region having a vertical profile in the substrate.
摘要:
Methods of erasing a non-volatile memory device having discrete charge trap sites between a semiconductor substrate and a gate include applying a negative voltage to a gate at least partially spaced apart from a semiconductor substrate by a charge storage layer providing discrete charge trap sites. A first positive voltage is applied to a source formed in the semiconductor substrate adjacent to one sidewall of the gate. A second positive voltage, which is equal to or less than the first positive voltage, is applied to a drain formed in the semiconductor substrate adjacent to the gate and located opposite the source.
摘要:
Methods of erasing a non-volatile memory device having discrete charge trap sites between a semiconductor substrate and a gate include applying a negative voltage to a gate at least partially spaced apart from a semiconductor substrate by a charge storage layer providing discrete charge trap sites. A first positive voltage is applied to a source formed in the semiconductor substrate adjacent to one sidewall of the gate. A second positive voltage, which is equal to or less than the first positive voltage, is applied to a drain formed in the semiconductor substrate adjacent to the gate and located opposite the source.
摘要:
A local SONOS structure having a two-piece gate and a self-aligned ONO structure includes: a substrate; an ONO structure on the substrate; a first gate layer on and aligned with the ONO structure; a gate insulator on the substrate aside the ONO structure; and a second gate layer on the first gate layer and on the gate insulator. The first and second gate layers are electrically connected together. Together, the ONO structure and first and second gate layers define at least a 1-bit local SONOS structure. A corresponding method of manufacture includes: providing a substrate; forming an ONO structure on the substrate; forming a first gate layer on and aligned with the ONO structure; forming a gate insulator on the substrate aside the ONO structure; forming a second gate layer on the first gate layer and on the gate insulator; and electrically connecting the first and second gate layers.
摘要:
A local SONOS structure having a two-piece gate and a self-aligned ONO structure includes: a substrate; an ONO structure on the substrate; a first gate layer on and aligned with the ONO structure; a gate insulator on the substrate aside the ONO structure; and a second gate layer on the first gate layer and on the gate insulator. The first and second gate layers are electrically connected together. Together, the ONO structure and first and second gate layers define at least a 1-bit local SONOS structure. A corresponding method of manufacture includes: providing a substrate; forming an ONO structure on the substrate; forming a first gate layer on and aligned with the ONO structure; forming a gate insulator on the substrate aside the ONO structure; forming a second gate layer on the first gate layer and on the gate insulator; and electrically connecting the first and second gate layers.
摘要:
A notched gate SONOS transistor includes: a substrate having source/drain regions; a gate insulator layer on the substrate between the source/drain regions; a notched gate structure, on the gate insulator leyer, having at least one notch; and at least one ONO wedge structure in the at least one notch, respectively, of the gate structure.
摘要:
A method of fabricating a semiconductor integrated circuit device, including providing a semiconductor substrate, sequentially forming an etching target layer and a hard mask layer on the semiconductor substrate, forming first etch masks on the hard mask layer, the first etch masks including a plurality of first line patterns spaced apart from one another at a first pitch and extending in a first direction, forming first hard mask patterns by etching the hard mask layer using the first etch masks, forming second etch masks on the first hard mask patterns, the second etch masks including a plurality of second line patterns spaced apart from one another at a second pitch and extending in a second direction different from the first direction, forming second hard mask patterns by etching the first hard mask patterns using the second etch masks, forming spacers on sidewalls of the second hard mask patterns, and patterning the etching target layer using the second hard mask patterns having the spacers.
摘要:
A method of fabricating a semiconductor integrated circuit device, including providing a semiconductor substrate, sequentially forming an etching target layer and a hard mask layer on the semiconductor substrate, forming first etch masks on the hard mask layer, the first etch masks including a plurality of first line patterns spaced apart from one another at a first pitch and extending in a first direction, forming first hard mask patterns by etching the hard mask layer using the first etch masks, forming second etch masks on the first hard mask patterns, the second etch masks including a plurality of second line patterns spaced apart from one another at a second pitch and extending in a second direction different from the first direction, forming second hard mask patterns by etching the first hard mask patterns using the second etch masks, forming spacers on sidewalls of the second hard mask patterns, and patterning the etching target layer using the second hard mask patterns having the spacers.