Semiconductor Power Line Layout via Multi-Layer Interconnects
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Solution Overview
Problem
The increasing integration of semiconductor devices leads to challenges in efficiently arranging power lines across different block regions, resulting in disconnected power lines and potential issues like power drops due to varying layout structures.
Innovation Solution
A power line layout structure for semiconductor devices is developed, featuring connection patterns in boundary regions between block regions, formed over different layers to interconnect power lines, ensuring smooth coupling and preventing power drops.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If power lines are arranged in different block regions with varying layout structures, then each block region can be optimized independently, but power lines may become disconnected and cause power drops
Solution Approach 1:
Connection patterns are introduced as intermediary structures in boundary regions between block regions. These connection patterns serve as mediators that bridge power lines from different block regions, ensuring continuous power supply while allowing each block region to maintain its optimized layout structure independently.
Solution Approach 2:
The solution moves the connection function from the planar layout dimension to the vertical layer dimension. By forming connection patterns on different layers (first connection pattern on lower layer, second connection pattern on upper layer), the patent enables power line interconnection across block regions without disrupting the horizontal layout optimization of individual blocks.
2Productivity
If multiple power lines are arranged densely to meet increasing integration demands, then storage capacity and operation speed improve, but layout complexity and potential connection issues increase
Solution Approach 1:
The patent resolves layout complexity by transitioning from two-dimensional planar arrangement to three-dimensional multi-layer configuration. Connection patterns are formed on different layers, allowing dense power line arrangement within block regions while simplifying inter-block connections through vertical stacking rather than complex horizontal routing.
Solution Approach 2:
The power line system is segmented into block-specific power lines (optimized for individual block functionality) and connection patterns (dedicated to inter-block connectivity). This segmentation allows each segment to be optimized independently, reducing overall layout complexity while maintaining high integration density.
3Object-affected harmful factors
If block regions are spaced apart by predetermined distance, then signal interference is reduced, but power line interconnection becomes more difficult
Solution Approach 1:
The patent overcome the spacing challenge by utilizing the vertical dimension. Connection patterns are formed on different layers and extend toward each other across the spaced-apart block regions. This vertical approach allows interconnection without requiring reduced horizontal spacing, thus maintaining signal isolation while enabling power line continuity.
Data Source
AI summary
A power line layout structure of a semiconductor device and a method for forming the same are disclosed. The power line layout structure of the semiconductor device includes a first block region including a plurality of first and second power lines, a second block region including a plurality of first and second power lines spaced apart from the first block region by a predetermined distance. Further, a first connection pattern arranged in a boundary region between the first and second block region, and formed to interconnect the first power line of the first block region and the first power line of the second block region. Still further, a second connection pattern arranged in a boundary region between the first and second block regions, and formed to interconnect the first and second block region power lines, wherein the first and second connection patterns are formed over different layers.