Compensating Resistance Adapter for Probe Inductance
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Solution Overview
Problem
Existing electrical test probes face challenges in making contact with miniaturized integrated circuit pins and maintaining electrical isolation, leading to potential short circuits and improper readings due to variable distances between signal and ground testing points, requiring multiple adapters that are cumbersome and often misplaced.
Innovation Solution
A probing blade with a flexible-deflectable extension and pogo-rotational-action pin, allowing for adjustable longitudinal and rotational movement, along with compensating resistance adapters that include networks of resistors, capacitors, and circuits to optimize signal transmission and prevent short circuits.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple adapters are used to accommodate variable distances between signal and ground testing points, then measurement accuracy is improved, but device complexity and ease of operation deteriorate due to cumbersome handling and risk of misplaced adapters
Solution Approach 1:
The adapter incorporates a variable spacing mechanism that allows a single adapter to accommodate multiple distances between signal and ground testing points. The spacing adjustment feature enables one adapter to perform the function of multiple fixed adapters, eliminating the need to carry and switch between different adapter types while maintaining measurement accuracy across various probe distances.
Solution Approach 2:
The adapter includes a dynamic spacing adjustment mechanism that allows the distance between the adapter's contact points to be varied during use. This dynamic adjustment capability enables the same adapter to adapt to different leg pitches and spacing requirements on integrated circuits, providing flexibility without requiring multiple static adapter designs.
2Adaptability or versatility
If multiple adapters are used for different probing distances, then adaptability to various IC leg pitches is improved, but device complexity increases
Solution Approach 1:
The adapter design integrates a variable spacing mechanism that allows a single adapter to handle multiple IC leg pitch configurations. By incorporating adjustment features within one adapter unit, the system achieves versatility across different probing distances without requiring a collection of specialized adapters for each leg pitch, thereby reducing overall device complexity.
Solution Approach 2:
The adapter combines the functions of multiple fixed adapters into a single unit by integrating a spacing adjustment mechanism. This merging approach consolidates what would otherwise require multiple separate adapters into one versatile tool, reducing the number of components needed and simplifying the overall system while maintaining adaptability to various IC leg pitches.
3Ease of manufacture
If standard adapters are used without compensation, then manufacturing simplicity is maintained, but reliability deteriorates due to potential short circuits and improper readings
Solution Approach 1:
The adapter incorporates compensating resistance and capacitance values that are specifically tuned to offset parasitic effects in the probe setup. By adjusting these electrical parameters within the adapter, the system compensates for variable distances and minimizes the risk of short circuits and reading errors, thereby improving reliability without requiring complex manufacturing processes.
Solution Approach 2:
The adapter acts as an intermediary component between the probe and the circuit under test, incorporating compensating elements that mediate the electrical signal. These compensating resistance and capacitance values within the adapter help stabilize the signal transmission, preventing short circuits and improper readings while maintaining manufacturing simplicity.
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
Enables stable ground connections and flexible probing across various integrated circuit leg pitches without the need for multiple adapters, enhancing measurement accuracy and reducing the risk of short circuits by compensating for inductance and maintaining high-frequency performance.
Implementation Method 1
Each transmission path has a probing end and a head connection end. At least one compensating network is positioned substantially near the probing end of the at least one transmission path, the at least one compensating network configured with (e.g. in parallel or in serial) the at least one transmission path.
Implementation Method 2
A probing blade conductive connector of the present invention includes a flexible-deflectable extension having a probing end and a head connection end.
Implementation Method 3
A pogo-rotational-action pin is electrically connected to the transmission path at the head connection end of the flexible-deflectable extension.
Data Source
AI summary
A compensating resistance adapter spans the distance from a mechanical point of contact of an electrical test probe and at least one signal testing point. The compensating resistance adapter has at least one transmission path extending longitudinally therewith. At least one compensating network is configured with the transmission path and positioned substantially near the probing end thereof. For preferred compensating resistance adapters, the at least one compensating network compensates for inductance caused by the conductive connector adapter. For preferred compensating resistance adapters, the at least one compensating network when used in combination with the electrical test probe is optimized to the signal testing point. Exemplary preferred compensating resistance adapters include a probing blade adapter, a twisted pair adapter, a Y-lead adapter, and a swivel pogo tip pair adapter.