摘要:
Integrated circuit devices provide supplemental pull-up drive currents to one or more sense amplifiers therein during operations (e.g., read operations) to sense and amplify differential signals established across inputs of the sense amplifiers. These additional pull-up drive currents are provided to improve the timing characteristics of the sense amplifiers by making them less susceptible to degraded performance that may be caused by insufficiently high internal voltages.
摘要:
An upper insulating layer is formed on a semiconductor substrate, the upper insulating layer having an etch selection ratio relative to a lower insulating layer. The upper insulating layer is anisotropically etched by using a contact pad forming mask, to form an opening exposing an upper surface of the semiconductor substrate between conductive patterns on the substrate. The side walls of the upper insulating layer are then isotropically etched, using the above mask again, to expand the size of the opening. The expanded opening is then filled with a conductive layer to form a contact pad to be electrically connected to the semiconductor substrate.
摘要:
A method of forming a semiconductor memory device using a double layered capping pattern and a semiconductor memory device formed thereby are provided. A plurality of interconnection patterns are formed on a semiconductor substrate. Each of the interconnection patterns includes a interconnection line and a double layered capping pattern. The double layered capping pattern includes a first capping pattern and a second capping pattern, which are sequentially stacked. The second capping pattern is formed of a material layer having an etching selectivity with respect to the first capping pattern. A planarized separating layer is formed between the adjacent interconnection patterns. The substrate having the planarized separating layer is covered with a sacrificial layer. The sacrificial layer is formed of a material layer having a wet etching selectivity with respect to the planarized separating layer. The sacrificial layer and the planarized separating layer are patterned to form a hole exposing a predetermined region of the semiconductor substrate. The hole is filled with a conductive pattern. The sacrificial layer is then removed to thereby protrude the conductive pattern. The conductive pattern and the second capping pattern are planarized, thereby forming a conductive plug in the hole and concurrently exposing the first capping pattern.
摘要:
Self aligned contact pads in a semiconductor device and a method for forming thereof wherein etching back process is carried out on the contact pad comprising material and insulating layer down to the top surface of a capping layer of a gate electrode, and also portions of the capping layer is selectively etched with respect to the contact pad composing material at the end of the etching back process and thereby forming the contact pads to be electrically separated from each other. SAC is opened by etching insulating layer selectively to the capping layer using SAC gate mask. A conductive material as for SAC pad is deposited over the insulating layer to fill the SAC opening. Etching back process is carried out to form the SAC pad.
摘要:
A method of fabricating a memory device includes alternately stacking a plurality of insulating layers and a plurality of sacrificial layers on a substrate, forming a channel hole by etching the insulating layers and the sacrificial layers to expose a partial region of the substrate, forming a channel structure in the channel hole, forming an opening by etching the insulating layers and the sacrificial layers to exposed a portion of the substrate, forming a plurality of side openings that include first side openings and a second side opening by removing the sacrificial layers through the opening, forming gate electrodes to fill the first side openings, and forming a blocking layer to fill the second side opening.
摘要:
A non-volatile memory device is provided. The non-volatile memory device includes a channel structure that is located on a substrate and extends perpendicularly to the substrate, a conductive pattern that extends perpendicularly to the substrate and is spaced apart from the channel structure, an electrode structure that is located between the channel structure and the conductive pattern, and comprises a plurality of gate patterns and a plurality of insulation patterns that are alternately laminated. An insulating layer that contacts with a top surface of the conductive pattern is formed along side surfaces of the electrode structure. The top surface of the conductive pattern is formed to be lower than the top surface of the channel structure.
摘要:
A non-volatile memory device is provided. The non-volatile memory device includes a channel structure that is located on a substrate and extends perpendicularly to the substrate, a conductive pattern that extends perpendicularly to the substrate and is spaced apart from the channel structure, an electrode structure that is located between the channel structure and the conductive pattern, and comprises a plurality of gate patterns and a plurality of insulation patterns that are alternately laminated. An insulating layer that contacts with a top surface of the conductive pattern is formed along side surfaces of the electrode structure. The top surface of the conductive pattern is formed to be lower than the top surface of the channel structure.
摘要:
A semiconductor device is provided. Word lines are formed on a substrate. An air gap is interposed between two adjacent word lines. A channel structure penetrates through the word lines and the air gap. A memory cell is interposed between each word line and the channel structure. The memory cell includes a blocking pattern, a charge trap pattern and a tunneling insulating pattern. The blocking pattern conformally covers a top surface, a bottom surface, and a first side surface of each word line. The first side surface is adjacent to the channel structure. The charge trap pattern is interposed only between the first side surface and the channel structure.
摘要:
A 3D semiconductor device includes an electrode structure has electrodes stacked on a substrate, semiconductor patterns penetrating the electrode structure, charge storing patterns interposed between the semiconductor patterns and the electrode structure, and blocking insulating patterns interposed between the charge storing patterns and the electrode structure. Each of the blocking insulating patterns surrounds the semiconductor patterns, and the charge storing patterns are horizontally spaced from each other and configured in such a way as to each be disposed around a respective one of the semiconductor patterns. Also, each of the charge storing patterns includes a plurality of horizontal segments, each interposed between vertically adjacent ones of the electrodes.
摘要:
A vertical semiconductor device includes a channel structure extending from a substrate in a first direction perpendicular to an upper surface of the substrate, and a ground selection line, word lines, and a string selection line sequentially formed on a side surface of the channel structure in the first direction to be separated from one another. The channel structure includes a protruding region formed in a side wall portion of the channel structure between the ground selection line and the upper surface of the substrate, the protruding region protruding in a horizontal direction perpendicular to the first direction.