Semiconductor Chip Compensation Pattern Layout for Thin-Chip Reliability
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Solution Overview
Problem
The challenge is to enhance the reliability of thin semiconductor chips and their corresponding semiconductor packages, which require improved integration and design rules due to the miniaturization of electronic devices.
Innovation Solution
A semiconductor chip design that includes a semiconductor substrate with interconnect structures, conductive patterns, a compensation pattern, and an insulating spacer, which helps in improving the reliability and integration of the chip.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If the semiconductor chip is made thinner to support miniaturization of electronic devices, then the weight and size are reduced, but the reliability and mechanical strength deteriorate
Solution Approach 1:
The patent employs a composite structure combining semiconductor substrate, interconnect structures, conductive patterns, insulating spacers, and compensation patterns. This multi-material composite approach enhances the mechanical strength and reliability of thin chips by distributing stress across different materials with complementary properties, preventing warpage and failure in miniaturized devices
Solution Approach 2:
The patent introduces compensation patterns with specific geometric parameters and spacing relationships to counteract thermal expansion and mechanical stress. By carefully controlling the distance between compensation patterns and conductive patterns, and adjusting the dimensions of insulating spacers, the structure compensates for dimensional changes in thin substrates, maintaining reliability during miniaturization
2Adaptability or versatility
If the degree of integration is increased to support miniaturization, then the functionality is improved, but the manufacturing precision and design rule compliance become more difficult
Solution Approach 1:
The patent utilizes vertical stacking of interconnect structures, conductive patterns, and insulating spacers to achieve higher integration density. By transitioning from planar to three-dimensional arrangement, the design accommodates increased functionality without proportionally reducing lateral dimensions, thereby maintaining manufacturability and design rule compliance while enhancing integration degree
Solution Approach 2:
The patent divides the chip structure into discrete, modular components including separate interconnect structures, conductive patterns, and insulating spacers. This segmentation allows each component to be independently designed and manufactured within standard design rules, while the collective assembly achieves high integration density and versatility
3Productivity
If conductive patterns are placed closer to the semiconductor substrate, then the connection efficiency is improved, but the surface distortion and reliability issues worsen
Solution Approach 1:
The patent introduces insulating spacers as intermediary elements between conductive patterns and the semiconductor substrate. These spacers maintain optimal spacing that enables efficient electrical connection while preventing direct contact that would cause surface distortion. The insulating spacers act as mediators that decouple the conflicting requirements of connection efficiency and surface flatness
Solution Approach 2:
The patent applies different structural configurations at different locations: insulating spacers are positioned specifically beneath or adjacent to conductive patterns where distortion risk is highest, while other areas maintain standard architecture. This localized modification optimizes connection efficiency in critical regions without causing surface distortion, balancing productivity and shape integrity
Data Source
AI summary
A semiconductor chip includes a semiconductor substrate having a first surface and a second surface opposite to the first surface, an interconnect structure disposed on the second surface of the semiconductor substrate, a plurality of conductive patterns apart from the semiconductor substrate with the interconnect structure therebetween and each connected to the interconnect structure, a compensation pattern apart from the plurality of conductive patterns on the interconnect structure in a horizontal direction and farther from the second surface of the semiconductor substrate than the plurality of conductive patterns, and an insulating spacer placed between the plurality of conductive patterns and the compensation pattern.