Semiconductor Package Gate Resistor Layout for Flexible Resistance Tuning
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Solution Overview
Problem
Conventional semiconductor device packages require multiple mask processes and increased costs due to the need for different gate resistance values for various applications, which is addressed by adding discrete off-chip gate resistors, but this approach can be cumbersome and costly.
Innovation Solution
A semiconductor device package with a first gate resistor directly coupled to the gate terminal and optionally a second gate resistor spaced from the terminal, both electrically in series, allowing for adjustable resistance without modifying the existing contact pads, using a direct write application method for resistor placement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If discrete off-chip gate resistors are added to achieve different gate resistance values, then adaptability is improved, but device complexity increases
Solution Approach 1:
The gate resistance function is segmented into multiple discrete resistor components that can be independently selected and connected to the gate terminal. This allows different resistance values to be achieved by selecting different resistor segments, providing adaptability without requiring complete redesign of the package structure.
Solution Approach 2:
The gate resistor assembly is designed to serve multiple functions: it provides gate resistance control, electrical connection to the gate terminal, and can be configured in different resistance values. This multi-functional design reduces the need for separate components and simplifies the overall package structure.
2Manufacturing precision
If multiple mask processes are used to create different gate resistance values, then manufacturing precision is improved, but ease of manufacture deteriorates
Solution Approach 1:
Gate resistors with different resistance values are pre-fabricated as discrete components before being integrated into the final package. This preliminary preparation allows for precise resistance values to be achieved through component selection rather than through complex multi-step mask processes during final assembly, thereby improving ease of manufacture.
Solution Approach 2:
Discrete gate resistor components serve as intermediaries between the gate terminal and the control circuitry. These intermediary components can be selected from a library of pre-fabricated resistors with different values, allowing precise gate resistance control without requiring complex integration processes or multiple mask steps.
Data Source
AI summary
A semiconductor device package comprises a semiconductor switching device having a body, including a first side, and an opposing second side coupled to a substrate. A gate terminal is defined on the semiconductor switching device body first side, the gate terminal having a first side, and an opposing second side facing the semiconductor switching device body. A first gate resistor is disposed on the gate terminal first side, and coupled electrically in series with the gate terminal.