摘要:
High density semiconductor devices and methods of fabricating the same are provided. Spacer fabrication techniques are utilized to form circuit elements having reduced feature sizes, which in some instances are smaller than the smallest lithographically resolvable element size of the process being used. Spacers are formed that serve as a mask for etching one or more layers beneath the spacers. An etch stop pad layer having a material composition substantially similar to the spacer material is provided between a dielectric layer and an insulating sacrificial layer such as silicon nitride. When etching the sacrificial layer, the matched pad layer provides an etch stop to avoid damaging and reducing the size of the dielectric layer. The matched material compositions further provide improved adhesion for the spacers, thereby improving the rigidity and integrity of the spacers.
摘要:
Non-volatile semiconductor memory devices with dual control gate memory cells and methods of forming the same using integrated peripheral circuitry formation are provided. Strips of charge storage material elongated in a row direction across the surface of a substrate with strips of tunnel dielectric material therebetween are formed. Forming the strips defines the dimension of the resulting charge storage structures in the column direction. The strips of charge storage material can include multiple layers of charge storage material to form composite charge storage structures in one embodiment. Strips of control gate material are formed between strips of charge storage material adjacent in the column direction. The strips of charge storage and control gate material are divided along their lengths in the row direction as part of forming isolation trenches and columns of active areas. After dividing the strips, the charge storage material at the peripheral circuitry region of the substrate is etched to define a gate dimension in the column direction for a peripheral transistor. Control gate interconnects can be formed to connect together rows of isolated control gates to extrinsically form word lines.
摘要:
High density semiconductor devices and methods of fabricating the same are provided. Spacer fabrication techniques are utilized to form circuit elements having reduced feature sizes, which in some instances are smaller than the smallest lithographically resolvable element size of the process being used. Spacers are formed that serve as a mask for etching one or more layers beneath the spacers. An etch stop pad layer having a material composition substantially similar to the spacer material is provided between a dielectric layer and an insulating sacrificial layer such as silicon nitride. When etching the sacrificial layer, the matched pad layer provides an etch stop to avoid damaging and reducing the size of the dielectric layer. The matched material compositions further provide improved adhesion for the spacers, thereby improving the rigidity and integrity of the spacers.
摘要:
A method for forming an integrated circuit system is provided including forming a substrate; forming a stack over the substrate, the stack having a sidewall and formed from a charge trap layer and a semi-conducting layer; and slot plane antenna oxidizing the stack for forming a protection enclosure having a protection layer along the sidewall.
摘要:
According to one exemplary embodiment, a structure, for example a flash memory cell, comprises a transistor gate dielectric stack situated on a semiconductor substrate. The transistor gate dielectric stack includes a bottom oxide layer, a silicon-rich nitride layer situated on the bottom oxide layer, a low silicon-rich nitride layer situated on the silicon-rich nitride layer, and a top oxide layer situated on the low silicon-rich nitride layer. This embodiment results in a nitride based flash memory cell having improved program speed and retention while maintaining a high erase speed. In another embodiment, a flash memory cell may further comprise a high-K dielectric layer situated on the transistor gate dielectric stack.
摘要:
A vehicle braking force control apparatus detects a period of time from when a braking force of a brake device is cancelled until a vehicle body speed in the backwards direction of a vehicle on a hill reaches a predetermined state, determines a brake output according to the detected period of time, and controls braking pressure according to the determined brake output. The period of time depends on the gradient of the hill. Therefore, by determining the brake output according to this period of time, braking force control according to the gradient of the hill is made possible even at an extremely slow speed at which the vehicle speed is undetectable.
摘要:
In a video game apparatus, a first joystick and a second joystick each contain a stick, a game start key and a mode select key. A control circuit controls the video game apparatus in the following manner. In a one-player mode as selected, only the output signal from the joystick whose start key is operated, is supplied to the main frame of the video game apparatus. In a two-player mode as selected, the output signal from the joystick whose start key is operated is supplied to the main frame. In turn, a game is started. With the progression of the game, the output signals from the first and second joysticks are alternately applied to the main frame.
摘要:
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.
摘要:
A vehicle braking force control apparatus detects a period of time from when a braking force of a brake device is cancelled until a vehicle body speed in the backwards direction of a vehicle on a hill reaches a predetermined state, determines a brake output according to the detected period of time, and controls braking pressure according to the determined brake output. The period of time depends on the gradient of the hill. Therefore, by determining the brake output according to this period of time, braking force control according to the gradient of the hill is made possible even at an extremely slow speed at which the vehicle speed is undetectable.
摘要:
A memory device and a method of fabrication are provided. The memory device includes a semiconductor substrate and a charge trapping dielectric stack disposed over the semiconductor substrate. A gate electrode is disposed over the charge trapping dielectric stack, where the gate electrode electrically defines a channel within a portion of the semiconductor substrate. The memory device includes a pair of raised bitlines, where the bitlines have a lower portion formed by a first process and an upper portion formed by a second process.