Semiconductor Monitoring Region Support Pillars to Prevent Cracking
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Solution Overview
Problem
The existing semiconductor structures face challenges in preventing the cracking of support layers in monitoring regions, which hampers effective monitoring of semiconductor components, particularly in DRAM devices.
Innovation Solution
A semiconductor structure is designed with a substrate having a monitoring region divided into two areas, where a first support layer is formed above the substrate, and multiple support pillars penetrate this layer without being connected to each other, enhancing structural strength and preventing cracking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a support layer is formed in the monitoring region to monitor the status of semiconductor components, then the monitoring capability is improved, but the support layer may crack which compromises the monitoring function
Solution Approach 1:
The support layer is segmented into multiple isolated support pillars rather than a continuous layer. Each pillar is independently formed in the second region of the monitoring region, penetrating through the first support layer. This segmentation prevents crack propagation across the entire support structure while maintaining local monitoring capabilities, thus resolving the contradiction between monitoring reliability and structural strength.
2Strength
If the support layer thickness is increased to prevent cracking, then the structural strength is improved, but the monitoring precision of the support layer thickness is reduced
Solution Approach 1:
Different regions of the monitoring region are assigned different functions: the first region maintains a continuous first support layer for monitoring purposes, while the second region introduces discrete support pillars that provide enhanced mechanical strength. This local differentiation allows the monitoring region to maintain both monitoring precision and structural strength without compromising either function.
Data Source
AI summary
A semiconductor structure includes a substrate, a first support layer, and multiple support pillars. The substrate includes a monitoring region. The monitoring region includes a first region and a second region. The first support layer is located in the first region and the second region, and is located above the substrate. The support pillars are located in the second region. The support pillars penetrate the first support layer and are not connected to each other. Each of the support pillars extends toward the substrate.