Semiconductor Data Writing Apparatus Using Distributed Transmission
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Solution Overview
Problem
In semiconductor integrated circuits, the increasing density of global data lines leads to reduced intervals between neighboring lines, causing distortion and delay in data transmission, which results in errors and degradation of refresh capability and increased write discovery time.
Innovation Solution
A data writing apparatus that includes a distributed transmission unit to transmit aligned even and odd data at mutually different timings, synchronized by control signals, and a controller to generate these signals based on write commands and address signals, reducing circuit complexity and area requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If data is transmitted through global data lines at the same time, then data transmission speed is maintained, but distortion and delay occur due to reduced intervals between neighboring lines
Solution Approach 1:
The patent segments the global data lines into two separate groups (first global data lines and second global data lines) and transmits data through these groups at different timings. This segmentation reduces the simultaneous switching activity on neighboring lines, thereby preventing distortion and delay while maintaining overall data transmission speed.
2Quantity of substance
If the number of global data lines is increased to handle higher data density, then data capacity is improved, but circuit area and complexity increase
Solution Approach 1:
The patent employs periodic action by transmitting data through first global data lines at one timing and second global data lines at a different timing in a periodic manner. This time-division multiplexing approach allows the same physical infrastructure to handle higher data capacity without requiring additional circuit area, thus resolving the contradiction between data density and area occupation.
3Productivity
If data is transmitted through multiple global data lines simultaneously, then data throughput is maintained, but write discovery time increases due to distortion and delay
Solution Approach 1:
By segmenting data transmission into different time slots for first and second global data lines, the patent eliminates distortion and delay that would otherwise require additional time for error correction and retransmission. This segmentation approach maintains data throughput while reducing write discovery time.
4Measurement precision
If more flip-flops are used to align data at the same timing, then data alignment precision is improved, but device complexity increases
Solution Approach 1:
The patent uses periodic action with two distinct timings for data transmission instead of using multiple flip-flops to align all data at the same timing. This approach achieves the necessary data alignment precision through time-division multiplexing while significantly reducing device complexity by eliminating the need for additional alignment flip-flops.
Data Source
AI summary
A data writing apparatus includes a distributed transmission unit configured to transmit first data and second data, having been aligned to have the same timing, to data lines at mutually different timings, and a data writing unit configured to synchronize the first data and the second data having been transmitted through the data lines and to write the synchronized data in a memory area.