IC Conductive Layer Layouts for Faster Power Routing
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Solution Overview
Problem
Conventional integrated circuit layouts for metal conductors often do not route signals and voltage sources efficiently, leading to suboptimal performance and increased area usage.
Innovation Solution
The implementation of metal conductors in orthogonal, non-orthogonal, and transition layouts, where transition metal layers with metal stripes provide better electrical connections between orthogonal and non-orthogonal metal layers, enabling more efficient signal and power delivery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional layouts of metal conductors are used, then the integrated circuit can be manufactured with standard processes, but the routing efficiency is suboptimal and area usage is increased
Solution Approach 1:
The patent applies asymmetry by introducing non-orthogonal metal conductor layouts that deviate from conventional symmetric orthogonal routing patterns. The metal conductors are arranged at various angles and asymmetric configurations to optimize signal and power delivery paths, thereby improving routing efficiency while reducing the area required for conductor routing.
Solution Approach 2:
The patent utilizes multiple metal layers stacked in three-dimensional space, transitioning from two-dimensional orthogonal routing to three-dimensional non-orthogonal routing. This dimensional change allows conductors to route more efficiently through additional spatial dimensions, reducing the planar area required while maintaining or improving connectivity.
2Loss of time
If conventional orthogonal metal conductor layouts are used, then manufacturing is simplified, but signal and power delivery time is increased
Solution Approach 1:
The asymmetric non-orthogonal layout optimizes signal and power delivery paths by allowing conductors to follow more direct routes between components. This reduces the length and complexity of current paths, thereby decreasing signal and power delivery time despite the increased geometric complexity of the layout.
Solution Approach 2:
By utilizing multiple stacked metal layers with non-orthogonal routing, the patent creates shorter three-dimensional paths for signal and power delivery. This dimensional approach reduces the physical distance electrons must travel, decreasing delivery time while the layered structure manages the inherent complexity.
3Reliability
If orthogonal metal layers are used, then routing is straightforward, but electrical connections between layers are less secure
Solution Approach 1:
The non-orthogonal metal layer configuration creates asymmetric connection patterns that improve electrical connection reliability. The varied angles and positions of conductors across layers provide multiple redundant connection paths and optimize vias placement, enhancing connection security despite the increased configurational complexity.
Solution Approach 2:
The three-dimensional non-orthogonal arrangement of metal layers provides additional spatial dimensions for creating robust electrical connections. Conductors can be positioned to optimize via alignment and connection strength across layers, improving reliability while the layered structure accommodates the complexity through vertical stacking.
Data Source
AI summary
Various layouts for conductive interconnects in the conductor layers in an integrated circuit are disclosed. Some or all of the conductive interconnects are included in a power delivery system. In general, the conductive interconnects in a first conductor layer are arranged according to an orthogonal layout and the conductive interconnects in a second conductor layer are arranged according to a non-orthogonal layout. Conductive stripes in a transition conductor layer positioned between the first and the second conductor layers electrically connect the conductive interconnects in the first conductor layer to the conductive interconnects in the second conductor layer.