Test Handler Hand Teaching via Reference Groove Detection

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Solution Overview

Problem

Conventional electronic device test handlers face inefficiencies due to manual corrections needed for pick-up and placement position adjustments caused by position errors from repetitive use and kit replacements.

Innovation Solution

A test handler with a hand teaching function, featuring a contactless sensor to calculate the position of reference points on a base with predetermined grooves, allowing automatic correction of position errors using a controller to reset the reference points.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If manual position correction is performed, then positioning accuracy is improved, but operation time and complexity increase

Engineering Contradiction:

Improvepick-up and placement position accuracyVSAvoidtime for manual position correction

Core Design Contradiction:

Measurement precisionVSLoss of time

Solution Approach 1:

The system performs preliminary position measurement and correction by detecting the reference groove position before actual device handling operations begin. The hand teaching function pre-calculates and stores the relationship between the reference groove and pick-up/placement positions, so that when kit replacement or error accumulation occurs, the system can automatically reset positions without manual intervention during production.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The hand teaching function enables the system to self-correct position errors automatically. When the reference groove is detected, the system autonomously calculates position deviations and adjusts the pick-up and placement positions without requiring external manual correction, thereby reducing operation time while maintaining positioning accuracy.

Inventive Principle:

Principle #25Self-service

2Measurement precision

If manual position correction is performed, then positioning accuracy is improved, but operation complexity increases

Engineering Contradiction:

Improvepick-up and placement position accuracyVSAvoidease of position adjustment

Core Design Contradiction:

Measurement precisionVSEase of operation

Solution Approach 1:

The hand teaching function enables automatic self-correction of position errors. The system autonomously detects the reference groove, calculates position deviations, and resets pick-up and placement positions without requiring manual intervention, thereby maintaining high positioning accuracy while significantly improving ease of operation.

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The system replaces manual mechanical position adjustment with an automated optical sensing and calculation system. The contactless sensor detects the reference groove position, and the controller automatically computes and applies position corrections, eliminating the need for manual measurement and adjustment operations.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

3Reliability

If reference groove detection is implemented, then position error correction is improved, but device complexity increases

Engineering Contradiction:

Improveposition error correction capabilityVSAvoidcomplexity of hand teaching system

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The reference groove serves as an intermediary reference marker that simplifies the position correction process. Instead of requiring complex direct measurement between multiple components, the system uses the reference groove as a中介 standard to establish a common reference frame, making position error detection and correction more reliable while managing system complexity.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The system creates a digital copy or model of the physical reference groove position through sensor detection. This digital representation is then used by the controller to calculate and apply position corrections, separating the complex calculation logic from the physical hardware and thereby managing device complexity while improving position correction reliability.

Inventive Principle:

Principle #26Copying

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

This solution enhances convenience and efficiency by eliminating the need for manual position corrections, ensuring accurate device handling and transport processes.

Implementation Method 1

the sensor may include a laser displacement sensor to measure a height of a top surface of the base

Methodology Applied

Scientific EffectLIDAR: LIDAR

Data Source

PatentUS11802906B2Electronic component test handler having hand teaching function and hand teaching method using same

Publication Date: 2023.10.31 ATECO INC

AI summary

The present invention relates to a test handler having a hand teaching function and a hand teaching method using same, the test handler comprising: a plurality of sites where devices are picked up or placed; reference points disposed adjacent to the plurality of sites, respectively; and a hand configured to transfer a device and including a sensor unit configured to calculate the position of a reference point in a non-contact manner. By the electronic component test handler having a hand teaching function and the hand teaching method using same, according to the present invention, an error which may occur due to repeated use or a position error required to be corrected according to exchange of kits can be automatically corrected using a reference groove, so that a separate work for position correction is not required and thus convenience and efficiency can be improved.