Sense Amplifying Circuit Signal Transmission Speed
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Solution Overview
Problem
Dynamic Random Access Memory (DRAM) experiences signal transmission delays due to long paths between local and global data lines, leading to reduced performance and inability of existing Local Sense Amplifier (LSA) circuits to meet performance requirements.
Innovation Solution
A sense amplifying circuit comprising a transmission circuit and an amplifying circuit that processes signals to improve transmission speed by amplifying initial transmission signals based on control signals, utilizing a combination of MOSFETs and TFETs to adapt to low voltage environments and reduce power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If a long path is used between local data line and global data line, then signal transmission can be achieved, but signal transmission delay increases and performance deteriorates
Solution Approach 1:
The patent divides the signal transmission path into multiple segments by introducing intermediate data lines (first intermediate data line and second intermediate data line) between the local data line and global data line. This segmentation allows the signal to be transmitted through shorter stages, reducing the overall transmission delay while maintaining signal integrity.
Solution Approach 2:
The patent introduces sense amplifier circuits as intermediary components that actively boost and regenerate signals at intermediate points in the transmission path. These sense amplifiers act as mediators that receive weak signals from the local data line, amplify them, and transmit the strengthened signals through intermediate lines to the global data line, thereby reducing transmission delay and improving signal quality.
2Reliability
If traditional sense amplifier circuits are used, then signal amplification can be achieved, but power consumption is too high and performance requirements are not met
Solution Approach 1:
The patent changes the operating parameters of the sense amplifier circuits by introducing control signals that dynamically adjust the amplification strength and activation timing. By optimizing these parameters, the circuit achieves reliable signal amplification while minimizing power consumption through selective activation and controlled gain levels.
Solution Approach 2:
The patent implements dynamic control of the sense amplifier circuits through multiple control signals that adjust the circuit operation based on real-time signal conditions. This dynamic operation allows the amplifiers to be activated only when needed and at optimal moments in the transmission cycle, reducing overall power consumption while maintaining reliable performance.
Data Source
AI summary
Provided are a sense amplifying circuit and method, and a semiconductor memory. The sense amplifying circuit includes: a transmission circuit, configured to receive a signal to be processed and perform transmission on the signal to be processed to obtain an initial transmission signal; and an amplifying circuit, configured to receive a first control signal and the signal to be processed, and perform amplification on the initial transmission signal according to the first control signal and the signal to be processed to obtain a target transmission signal.