Auxiliary Driving Circuit for Faster Distributed Signal Transmission
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Solution Overview
Problem
Semiconductor devices with distributed parameter circuits face challenges in achieving high-speed signal transmission due to differences in delay times and increased circuit area and power consumption, particularly when driving circuits are located at both ends of the circuit.
Innovation Solution
The implementation of an auxiliary driving circuit that accelerates the drive of the primary driving circuit by receiving its drive signal as an input, allowing for high-speed operation while reducing the overall circuit scale and eliminating the need for large-scale address decoders and logic circuits at both ends.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If driving circuits are disposed at both ends of the distributed parameter circuit, then signal transmission speed is improved, but circuit area increases due to large scale address decoder and logic circuit
Solution Approach 1:
The patent segments the driving function by dividing it into a main driving circuit at one end and an auxiliary driving circuit at the other end. The auxiliary driving circuit handles the far end of the distributed parameter circuit, while the main driving circuit handles the near end, thereby distributing the driving burden and reducing the scale required at each location.
Solution Approach 2:
The auxiliary driving circuit acts as an intermediary between the main driving circuit and the far end loads of the distributed parameter circuit. It receives drive signals from the main driving circuit, inverts them, and drives the far end loads directly, eliminating the need for large scale address decoders and logic circuits at both ends.
2Speed
If driving circuits are disposed at both ends of the distributed parameter circuit, then signal transmission speed is improved, but power consumption increases due to multiple large scale driving circuits
Solution Approach 1:
The patent segments the driving function to distribute the power consumption burden. The auxiliary driving circuit, being smaller in scale, consumes less power than a full-size driving circuit would require at both ends, while still maintaining high-speed signal transmission capability.
3Area of stationary object
If driving circuit is disposed on one side of the distributed parameter circuit, then circuit area is reduced, but signal delay increases in loads on the opposite side
Solution Approach 1:
The auxiliary driving circuit serves as an intermediary that receives drive signals from the main driving circuit, inverts them, and transmits them to the far end loads. This intermediary function eliminates the signal delay that would otherwise occur in loads on the opposite side of the distributed parameter circuit from the main driving circuit.
4Speed
If driving circuits are disposed at both ends of the distributed parameter circuit, then signal transmission speed is improved, but the number of wirings increases due to same signal line wired at both ends
Solution Approach 1:
The patent extracts the far end driving function from the main driving circuit and implements it separately through the auxiliary driving circuit. This extraction eliminates the need to wire the same signal line at both ends, as the auxiliary driving circuit generates its own drive signals locally based on inverted versions of the main drive signals.
Data Source
AI summary
A semiconductor device is provided which has a driving circuit operable to drive a circuit that has a delay, the semiconductor device including: an auxiliary driving circuit operable to accelerate drive of the driving circuit, which receives a drive signal of the driving circuit as an input signal.