Dynamic Matching Circuit for Zero-Pole Stable Semiconductor Devices
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing semiconductor devices face instability due to imperfect zero-pole matching between chip devices and circuit boards, which is exacerbated by process variations and operating conditions, leading to increased noise voltage and poor circuit stability.
Innovation Solution
A semiconductor device with a frequency variable element, matching control unit, and matching adjustment circuit that dynamically adjusts its properties based on noise voltage to match the zero and pole of the substrate with the frequency variable element, using inductors and capacitors to optimize circuit stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If conventional IC packaging process is used, then manufacturing simplicity is maintained, but zero-pole matching between chip device and circuit board deteriorates due to process variations and operating conditions
Solution Approach 1:
The patent applies dynamics by making the matching circuit adjustable through multiple switchable capacitor configurations. The circuit can dynamically reconfigure its capacitance values based on different operating conditions, allowing the zero-pole characteristics to adapt and maintain optimal matching across various scenarios, thereby resolving the contradiction between fixed manufacturing and variable operating conditions.
Solution Approach 2:
The patent changes the electrical parameters of the matching circuit by providing multiple capacitor combinations that can be selectively connected or disconnected. This allows the capacitance values to be adjusted according to different operating states, enabling the circuit to maintain proper zero-pole matching despite process variations and changing conditions.
2Volume of moving object
If advanced packaging process (CoWoS) is used, then chip device size is reduced and power consumption is lowered, but zero-pole matching between die and substrate deteriorates
Solution Approach 1:
The patent implements dynamics by providing a可调 matching circuit that can reconfigure its electrical characteristics based on operating conditions. This dynamic adjustment capability compensates for the zero-pole mismatches introduced by the advanced packaging process, maintaining circuit stability despite the size reduction benefits of CoWoS packaging.
Solution Approach 2:
The patent changes electrical parameters through multiple switchable capacitor configurations in the matching circuit. By selectively connecting different capacitor combinations, the circuit can adjust its impedance characteristics to match the zero-pole requirements of the advanced packaged device, resolving the matching deterioration caused by miniaturization.
3Device complexity
If fixed property matching circuit is used, then device complexity is minimized, but adaptability to different operating conditions deteriorates causing noise voltage increase
Solution Approach 1:
The patent applies dynamics by introducing switchable elements that allow the matching circuit to reconfigure its capacitance values based on different operating conditions. This dynamic capability enables the circuit to adapt to various scenarios while maintaining relatively simple overall structure, preventing noise voltage increases that would occur with fixed circuits.
Solution Approach 2:
The patent segments the matching circuit into multiple capacitor units that can be independently controlled. This segmentation allows flexible reconfiguration of the circuit's electrical characteristics without requiring a completely different circuit design for each operating condition, maintaining simplicity while achieving adaptability.
Data Source
AI summary
The disclosure is related to a semiconductor device and a property matching method thereof. The semiconductor device includes a frequency variable element, a matching control unit and a matching adjustment circuit. The matching control unit is connected to the frequency variable element to detect a noise voltage of the frequency variable element. The matching adjustment circuit is connected to the frequency variable element and the matching control unit. The matching control unit dynamically adjusts the property of the matching adjustment circuit based on the noise voltage of the frequency variable element to change the property of the semiconductor device accordingly.