HEMT Package Layout With Integrated Protection Components
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Solution Overview
Problem
Existing semiconductor packaging methods for high electron mobility transistors (HEMTs) require additional protective electronic components that occupy extra space and increase circuit complexity, necessitating an integrated package structure.
Innovation Solution
A package design incorporating a first and second support portion with metal layers and pins, allowing for the integration of HEMTs and protective components, optimizing space utilization and reducing circuit complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If additional protective electronic components are placed between the HEMT package and the drive voltage, then the HEMT is protected from damage, but the circuit board layout space increases and circuit design complexity increases
Solution Approach 1:
The patent integrates the protective electronic components (such as Zener diodes, resistors, and capacitors) directly into the package structure alongside the HEMT device. This merging of protective components with the main device eliminates the need for separate external protection circuits, thereby reducing circuit board layout space and simplifying circuit design while maintaining reliable protection against voltage spikes and transient conditions
2Reliability
If additional protective electronic components are placed between the HEMT package and the drive voltage, then the HEMT is protected from damage, but the circuit board layout space increases
Solution Approach 1:
The protective components are merged into the package substrate, sharing the same physical space as the HEMT device. This integration dramatically reduces the external circuit board space required for protection circuits, as all components occupy a compact area within the package rather than being distributed across the board
3Area of stationary object
If the second metal layer occupies a large area (ratio > 2/3 of maximum package length), then space utilization is optimized, but the layout flexibility is reduced
Solution Approach 1:
The package structure employs different metal layer configurations in different regions: the first support portion has both upper and lower metal layers for the HEMT connections, while the second support portion has only a second metal layer for protective components. This local differentiation optimizes space utilization in each region while maintaining appropriate connection flexibility
Data Source
AI summary
The present disclosure discloses a package including a first support portion, a second support portion, and multiple pins. The first support portion includes a first upper metal layer and a first lower metal layer, wherein the first lower metal layer is connected to and overlaps with the first upper metal layer, corresponding to the position of the first upper metal layer. The second support portion is laterally separated from the first support portion, and the second support portion includes a second metal layer. The multiple pins are laterally separated from the first support portion and the second support portion, where in a top view, a ratio of a maximum length of the second metal layer to a maximum length of the package is greater than ⅔.