Image Sensor Impedance Measurement via Comparison Circuit
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Solution Overview
Problem
Existing semiconductor design techniques lack an efficient method for measuring the power characteristics of image sensors, particularly the impedance of their power delivery networks, which is crucial for ensuring proper functioning and quality.
Innovation Solution
A power characteristic measurement device that includes a comparison circuit to match the impedance of an image sensor with a modeled impedance, and an extraction circuit to accurately extract the impedance of the image sensor's power delivery network, allowing for precise measurement and tuning of the network.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional measurement methods are used for image sensor power characteristics, then the measurement process becomes complex and difficult, but the patent introduces a comparison circuit and extraction circuit that simplify the measurement process while maintaining accuracy
Solution Approach 1:
The patent introduces a comparison circuit as an intermediary device that compares the impedance of the image sensor with a modeled impedance, and an extraction circuit that extracts the actual impedance value. This intermediary approach simplifies the measurement process by breaking it into manageable steps while maintaining measurement accuracy through systematic comparison and extraction procedures.
2Adaptability or versatility
If the impedance of power delivery networks in different packages is measured using conventional methods, then the measurement requires separate complex procedures for each package, but the patent enables measurement across different packages using a unified approach
Solution Approach 1:
The patent creates a universal measurement system that can measure the impedance of power delivery networks in image sensors across different packages using the same comparison circuit and extraction circuit architecture. The system uses a modeled impedance that can be adapted to different package configurations, allowing a single measurement device to handle multiple package types without requiring separate complex measurement procedures for each.
Data Source
AI summary
Disclosed are a power characteristic measurement device, an image system including the power characteristic measurement device and an operating method of the image system, and the power characteristic measurement device may include a comparison circuit suitable for comparing impedance of an image sensor with impedance of a modeled image sensor, and an extraction circuit suitable for extracting the impedance of the image sensor according to a comparison result of the comparison circuit.