Automated Probe Card Loading Apparatus with Alignment Pins
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Solution Overview
Problem
The manual management and loading of probe cards in semiconductor device fabrication processes are inefficient, leading to potential misalignment and damage during the test process, which can affect the reliability and accuracy of semiconductor device testing.
Innovation Solution
A probe card loading apparatus and managing system that automates the logistics movement of probe cards, incorporating a package jig, transfer unit, load port, and alignment pins/sockets to align and securely transfer probe cards, along with a manual and automatic carrier transfer apparatus to facilitate efficient handling and testing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If manual management and loading of probe cards is performed, then operational flexibility is maintained, but alignment precision and reliability deteriorate due to potential misalignment and damage
Solution Approach 1:
The patent introduces an automated probe card loading apparatus as an intermediary system between the operator and the probe card handling process. This apparatus includes alignment mechanisms with alignment marks and automated positioning systems that precisely align probe cards with load ports, eliminating the alignment imprecision inherent in manual operations while managing system complexity through modular design
Solution Approach 2:
The patent replaces manual mechanical alignment operations with automated mechanical systems featuring precision alignment mechanisms. The system uses automated probe card loaders with alignment marks, position sensors, and controlled movement mechanisms to achieve precise alignment without relying on manual dexterity, thereby improving alignment precision while the automation itself manages the complexity
2Reliability
If automated probe card loading apparatus is implemented, then alignment precision and reliability are improved, but device complexity increases
Solution Approach 1:
The automated probe card loading apparatus serves as an intermediary system that enhances testing reliability by eliminating manual handling errors. The system includes automated alignment mechanisms with alignment marks, position sensors, and controlled loading processes that ensure consistent and reliable probe card placement, while the modular architecture of the automated system manages its own complexity
Solution Approach 2:
The patent implements self-alignment features where the automated loading apparatus uses alignment marks and position sensors to automatically position probe cards without external intervention. The system performs self-calibration and self-positioning functions, improving reliability through consistent automated operations while the self-service nature reduces the operational complexity burden
3Manufacturing precision
If alignment pins and sockets are used, then alignment precision is improved, but manufacturing complexity increases
Solution Approach 1:
The patent divides the alignment function into separate components: alignment pins on one element and corresponding sockets on another element. This segmentation allows each component to be manufactured independently using standard precision machining techniques, improving alignment precision through dedicated alignment features while making manufacturing easier by breaking down the complex alignment system into simpler, manufacturable parts
Data Source
AI summary
A loading apparatus is provided which includes a package jig, a transfer unit, and a load port. The package jig is fixed to a package. The transfer unit includes a hand for holding the package jig and transferring the package. The package transferred by the transfer unit is loaded on the load port. The load port and the hand include first alignment pins and first alignment sockets for aligning the package to the load port.