Interleaved Clock Gate and Decoupling Capacitor Layout for EM Control
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Solution Overview
Problem
Conventional semiconductor devices face issues such as self-heating and electromigration due to concentrated current flow in clock gate blocks, which are segregated from decoupling capacitor blocks, leading to inefficiencies and potential damage.
Innovation Solution
Interleaving clock gate blocks and decoupling capacitor blocks within cell regions to distribute current more uniformly, reducing concentration and susceptibility to self-heating and electromigration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If clock gate blocks are segregated from decoupling capacitor blocks, then device complexity is reduced and ease of manufacture is improved, but current distribution becomes uneven leading to self-heating and electromigration issues
Solution Approach 1:
The patent merges clock gate blocks and decoupling capacitor blocks into a unified cell region, allowing them to share common power lines and ground lines. This integration ensures that high-current-flow conductors are evenly distributed throughout the cell region, preventing current concentration that would cause self-heating and electromigration, while maintaining manufacturing simplicity through standardized cell structures.
2Device complexity
If clock gate blocks are segregated from decoupling capacitor blocks, then device complexity is reduced, but susceptibility to self-heating and electromigration increases
Solution Approach 1:
The patent merges clock gate blocks and decoupling capacitor blocks into a unified cell region, allowing them to share common power lines and ground lines. This integration ensures that high-current-flow conductors are evenly distributed throughout the cell region, preventing current concentration that would cause self-heating and electromigration, while maintaining manufacturing simplicity through standardized cell structures.
3Reliability
If clock gate blocks are interleaved with decoupling capacitor blocks, then current distribution becomes more uniform reducing self-heating and electromigration, but device complexity increases
Solution Approach 1:
The patent segments the cell region into multiple standardized units, each containing both clock gate blocks and decoupling capacitor blocks. This segmentation allows for systematic interleaving patterns that ensure uniform current distribution across the entire device, while the modular nature of the segments keeps design and manufacturing manageable through repetition of proven units.
4Reliability
If clock gate blocks are interleaved with decoupling capacitor blocks, then current distribution becomes more uniform, but manufacturing complexity increases
Solution Approach 1:
The patent segments the cell region into multiple standardized units, each containing both clock gate blocks and decoupling capacitor blocks. This segmentation allows for systematic interleaving patterns that ensure uniform current distribution across the entire device, while the modular nature of the segments keeps design and manufacturing manageable through repetition of proven units.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The interleaved arrangement enhances current distribution, reducing self-heating and electromigration, thereby facilitating more efficient and faster operation of clock gates.
Implementation Method 1
Decoupling capacitors are connected to the clock gates in order to protect the clock gates against variations in voltage signals and ground signals from power lines
Data Source
AI summary
A semiconductor device having a cell region, the cell region including a first set of one or more first blocks and a second set of one or more second blocks. Each of the first blocks including a clock gate and each of the second blocks includes a decoupling capacitor. The first set has two or more first blocks and/or the second set has two or more second blocks. The first blocks of the first set are interleaved with the second blocks of the second set.