DUT Handling Apparatus Preliminary Alignment Control
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Solution Overview
Problem
The operation rate of electronic component handling apparatuses is deteriorated when the correction amount for the position of a device under test exceeds the maximum alignment amount of the alignment device, leading to potential shutdowns and reduced efficiency.
Innovation Solution
An electronic component handling apparatus with a control device that performs preliminary alignment work when predetermined conditions are not met, allowing for main alignment work even when the correction amount exceeds the maximum alignment amount, by adjusting the position of the holding part based on image information and limiting the number of preliminary alignment work executions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the alignment device adjusts the holding part position to correct DUT positioning errors, then the positioning accuracy is improved, but when the correction amount exceeds the maximum alignment amount, the operation rate deteriorates and shutdowns occur
Solution Approach 1:
The system performs preliminary alignment work by adjusting the holding part position within the maximum alignment amount range before main alignment. This preliminary action reduces the correction amount required in subsequent operations, preventing shutdowns and improving operation rate while maintaining positioning accuracy
Solution Approach 2:
The alignment process is divided into periodic cycles of preliminary alignment and main alignment. The control device determines whether preliminary alignment is needed based on image information, creating a periodic action pattern that optimizes both positioning accuracy and operation rate
2Manufacturing precision
If the system performs preliminary alignment work multiple times to satisfy positioning conditions, then the positioning accuracy is improved, but the time consumption increases
Solution Approach 1:
The control device uses image information as feedback to determine whether preliminary alignment work is necessary. This feedback mechanism allows the system to perform preliminary alignment only when needed, achieving positioning accuracy while minimizing time consumption
Solution Approach 2:
The system performs preliminary alignment work partially (only when image information indicates it's needed) rather than excessively (always). This selective approach balances positioning accuracy requirements with time efficiency
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 approach improves the operation rate of the electronic component handling apparatus by enabling effective positioning of devices under test, even when the correction amount exceeds the maximum alignment capability, thereby preventing shutdowns and enhancing overall efficiency.
Implementation Method 1
an electronic component handling apparatus for positioning an electronic component under test (hereinafter, simply referred to as a 'device under test (DUT)'), such as a semiconductor integrated circuit device, using an image processing technology
Data Source
AI summary
An electronic component handling apparatus (10) is provided which can improve the operation rate. The electronic component handling apparatus (10) includes: a contact arm (300) having a holding part (380) configured to hold a DUT (10A), the contact arm (300) being configured to press the DUT (10A) against a socket (410); an alignment device (200) including a camera (221) and a operation unit (230), the camera (221) being configured to image the DUT (10A) to acquire image information, the operation unit (230) being configured to adjust a position of the holding part (380) within a range of a maximum alignment amount (ALmax); and a control device (105) configured to control the contact arm (300) and the alignment device (200). When a predetermined condition is not satisfied, the control device (105) controls the contact arm (300) and the alignment device (200) so as to perform preliminary alignment work at least once. When the predetermined condition is satisfied, the control device (105) controls the contact arm (300) and the alignment device (200) so as to perform main alignment work.