Semiconductor Data Output Control Circuit Bridge Detection
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Solution Overview
Problem
As semiconductor devices shrink in size, the narrowing space between input/output lines can lead to the formation of bridges due to parasitic ions, causing leakage currents and data loss, which existing technologies struggle to detect and manage effectively during operations like read and write operations.
Innovation Solution
A semiconductor system with a data output control circuit that generates a sense amplification control signal by delaying a column select signal based on a control code signal, allowing for the sensing and amplification of data on input/output lines and complementary lines, and enabling the transfer of data between bit lines and input/output lines, thereby detecting and managing potential bridges.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the space between input/output lines is reduced to shrink semiconductor device size, then device miniaturization is achieved, but bridges may form between input/output lines causing leakage currents and data loss
Solution Approach 1:
The patent applies preliminary action by performing bridge detection before normal data operations. The test read operation is executed in advance to identify bridges between input/output lines, allowing the system to take preventive measures before actual data transmission occurs, thus preventing data loss while maintaining miniaturized device structure
Solution Approach 2:
The patent implements feedback through the bridge detection mechanism that monitors the state of input/output lines during test read operations. When a bridge is detected, the system receives feedback about the defective line and can adjust data transmission paths or alert the user, maintaining reliability despite reduced device dimensions
2Reliability
If bridge detection is performed during normal operations, then data integrity can be monitored, but operational efficiency is reduced due to additional detection cycles
Solution Approach 1:
The bridge detection is performed as a preliminary test read operation before actual data read operations. This allows the system to identify bridges in advance without interfering with normal operational cycles, maintaining both reliability through detection capability and productivity by avoiding interruptions during data transmission
Solution Approach 2:
The patent segments the operational cycles into separate test read operations for bridge detection and normal read operations for data transmission. This segmentation allows bridge detection to be performed independently without blocking data operations, thus maintaining both detection capability and operational efficiency through time-multiplexed execution
Data Source
AI summary
A semiconductor device may include a data output circuit configured to sense and amplify data of an input/output line and a complementary input/output line based on the sense amplification control signal. The semiconductor device may include a data output control circuit configured to delay a point of time that the input/output line and the complementary input/output line are sensed and amplified.