Automatic Optical Height Measurement for Drive Chip Handoff Platforms
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Solution Overview
Problem
Manual height detection of transfer and handoff platforms on drive chips is subjective, costly, and lacks uniform standards, affecting measurement accuracy.
Innovation Solution
An automatic measuring device comprising a platform, pre-positioned suction nozzle, reverse suction nozzle, sensor, and reflection sheet, which emits light and detects changes to determine the height value, allowing the device to adjust the reverse suction nozzle to ensure the platform meets examination criteria.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual measurement by detection person is used, then measurement can be performed, but detection standards are not uniform and detection result is affected by experience and skills
Solution Approach 1:
The patent replaces the manual mechanical measurement system with an automatic optical measurement system. A light source emits light that reflects off the handoff platform, and a sensor automatically detects the reflected light to determine platform height, eliminating the need for manual measurement with thickness gauges and removing variability introduced by human experience and skills.
Solution Approach 2:
The measurement system performs self-measurement without external human intervention. The automatic measuring device independently completes the entire measurement process including light emission, reflection detection, height calculation, and pass/fail determination, making the system self-sufficient and eliminating dependency on detection personnel expertise.
2Measurement precision
If manual measurement by detection person is used, then measurement can be performed, but costs are high
Solution Approach 1:
The patent replaces expensive manual measurement operations with an automatic optical measurement system. By eliminating the need for trained detection personnel and manual thickness gauge operations, the system reduces labor costs and operational expenses while maintaining consistent measurement quality.
3Extent of automation
If automatic measurement device is used, then costs are low and detection result is accurate, but device complexity increases
Solution Approach 1:
The patent introduces a reflection sheet as an intermediary element to facilitate automatic measurement. The light source emits light that reflects off the reflection sheet attached to the handoff platform, and the sensor detects the reflected light. This intermediary approach enables automatic height detection without requiring complex direct measurement mechanisms, simplifying the overall device structure while maintaining automation.
4Measurement precision
If thickness gauge is used for measurement, then measurement can be performed, but detection standards are not uniform
Solution Approach 1:
The patent replaces the thickness gauge mechanical measurement system with an optical measurement system. The light source and sensor configuration provides uniform detection standards through consistent optical path geometry, eliminating variability in measurement operations regardless of which specific device is used, while maintaining ease of operation through automatic measurement.
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
The solution enables accurate, cost-effective, and automated height detection without manual involvement, ensuring consistent measurement standards and reducing operational costs.
Implementation Method 1
controlling, by the automatic measuring device, a light source to emit light to the reflection sheet; detecting, by the sensor, a measurement value of the reflection sheet
Data Source
AI summary
An automatic measuring device includes a platform, a pre-positioned suction nozzle, a reverse suction nozzle, a sensor, and a reflection sheet. The sensor is fixed on a side of the reverse suction nozzle, and the reflection sheet is fixed on a side of the pre-positioned suction nozzle and is located below the sensor. The method includes the following steps: controlling, by the automatic measuring device, a light source to emit light to the reflection sheet; detecting, by the sensor, a measurement value of the reflection sheet; determining, by the automatic measuring device, a change curve of a measurement value and a height according to a material of the reflection sheet; finding, by the automatic measuring device from the change curve, a height value corresponding to the measurement value; and determining, by the automatic measuring device according to the height value, whether the transfer and handoff platform can pass examination.