Bonding Clip Interconnects for GaN Semiconductor Integration
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The increasing complexity of semiconductor element layouts in electronic devices and the need for innovative packaging solutions to enhance integration, thermal, and electrical performance, particularly for devices using non-conventional semiconductor materials like GaN, are not adequately addressed by existing technologies.
Innovation Solution
The development of an electronic device package that incorporates semiconductor dies with embedded contact elements and a substrate connected using bonding clips, which provides improved thermal and electrical conductance, and allows for a system-in-package (SIP) configuration with a TO-style outline, enabling efficient integration and mounting on PCBs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional packaging solutions are used for semiconductor devices, then manufacturing simplicity is maintained, but integration density and thermal performance are insufficient
Solution Approach 1:
The patent combines multiple semiconductor devices into a single package housing, integrating multiple chips and interconnection structures into one unified package unit. This merging approach increases integration density by allowing multiple devices to coexist and communicate within a single package, while the standardized package footprint maintains compatibility with conventional mounting processes.
Solution Approach 2:
The patent employs a nested structure where semiconductor chips are mounted on interconnection substrates, which are then enclosed within the package housing. This nested arrangement allows for compact integration of multiple functional layers (chips, substrates, interconnections) in a hierarchical manner, maximizing space utilization and integration density within the package volume.
2Reliability
If chip-to-chip connections are made using conventional methods, then manufacturing simplicity is maintained, but inductance and electrical performance are insufficient
Solution Approach 1:
The patent transitions from planar chip-to-chip connections to three-dimensional vertical interconnections through the substrate. By routing connections through the substrate thickness rather than along the chip surface, the design reduces current path length and inductance, improving electrical performance while enabling higher frequency operation and faster signal transmission.
Solution Approach 2:
The patent introduces an interconnection substrate as an intermediary element between semiconductor chips. This substrate serves as a mediator that provides optimized electrical pathways, thermal management interfaces, and mechanical support, enabling improved electrical performance through controlled impedance traces and reduced parasitic inductance compared to direct chip-to-chip bonding.
3Adaptability or versatility
If multiple semiconductor materials are used to benefit from their electronic properties, then device functionality is enhanced, but manufacturing complexity increases
Solution Approach 1:
The patent designs a universal package platform that can accommodate multiple semiconductor material types (GaAs, GaN, Si, SiC) and device configurations within the same package housing. The standardized interconnection substrate and mounting structures provide multi-functional support for different material systems, enabling manufacturers to integrate diverse semiconductor technologies without requiring entirely different packaging processes.
Solution Approach 2:
The patent segments the manufacturing process into independent stages: chip fabrication (which can use material-specific processes), chip mounting on substrate, interconnection formation, and final package encapsulation. This segmentation allows each stage to be optimized for specific material requirements while maintaining overall process modularity, reducing the complexity burden of handling multiple semiconductor materials.
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
This solution enables higher integration, better thermal and electrical performance, and reduced inductance by using bonding clips for connections, specifically beneficial for III-V based semiconductor materials like GaN, and allows for the use of various semiconductor materials and configurations.
Implementation Method 1
improved thermal and electrical conductance
Implementation Method 2
improved thermal and electrical conductance
Data Source
AI summary
An electronic device includes multiple semiconductor chips in a single housing. Such semiconductor chips may comprise different semiconductor materials, for example they may comprise GaN. Using bonding clips instead of bonding wires is an efficient way of connecting such semiconductor chips to a substrate.