History Management Pad for Semiconductor Test Socket Tracking
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current methods for managing the lifespan and inventory of semiconductor test sockets are inaccurate, leading to increased defective product classification and reduced production efficiency due to inadequate tracking of socket usage and position changes.
Innovation Solution
A history management pad is integrated into the semiconductor test socket, comprising an insulative mold film member with electrode units, a guide film for tracking chips, and a fixing mechanism, which allows for accurate data collection on socket usage and position, enabling timely replacement and preventing test errors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the socket is replaced based on approximate estimation by recording initial use date, then the replacement process is simple, but the data accuracy is insufficient and cannot track all necessary items such as number of uses, good products, and bad products
Solution Approach 1:
The patent uses a chip that stores digital information as a copy of the socket's usage history. The chip records the number of uses, number of good products, and number of bad products as digital data, which can be read and processed accurately without requiring complex manual tracking systems. This digital copying approach provides precise measurement while keeping the system relatively simple.
Solution Approach 2:
The patent replaces manual or mechanical tracking methods with an electronic chip-based system. Instead of relying on human operators to record and track socket usage, the chip automatically stores and provides accurate data on usage history, product outcomes, and replacement timing, eliminating the need for complex manual administration systems.
2Loss of information
If the tester or handler memorizes the data processed by each socket, then some tracking is possible, but the position of socket may not be recognized when position changes and cannot identify reused sockets after cleansing work
Solution Approach 1:
The chip creates a permanent digital record of the socket's history, including its position information and usage data. This recorded information persists even when the physical socket is moved or reused after cleansing, ensuring that the system can accurately track and identify the socket's complete history without relying on human memory or manual records.
Solution Approach 2:
The chip provides feedback information about the socket's usage history, position, and product outcomes to the testing system. This feedback mechanism enables the system to recognize the socket's current state and history automatically, eliminating the need for operators to manually track and remember socket positions and usage patterns.
3Reliability
If the socket is replaced when reaching predetermined use count threshold, then the defective rate can be controlled, but the expensive tester and handler must be stopped for replacement which lowers test efficiency and affects production yield
Solution Approach 1:
The chip continuously monitors and records the socket's usage data, including the number of uses, number of good products, and number of bad products. This feedback information is read by the testing system to determine the optimal replacement timing, allowing the system to maintain reliability while minimizing interruptions to testing operations.
Solution Approach 2:
The chip is pre-programmed with the criteria for socket replacement based on usage counts and product outcomes. This preliminary setup allows the system to automatically determine when replacement is needed without requiring manual intervention or stopping operations for assessment, thereby maintaining test efficiency while controlling defective rates.
Data Source
AI summary
The present invention relates to a history management pad of a semiconductor test socket, a manufacturing method thereof, and a semiconductor test device including the history management pad. According to the present invention, a history management pad of a semiconductor test socket is provided, the history management pad which is installed on one side of the periphery of a socket frame of a semiconductor test socket composed of a socket body and the socket frame, is characterized by including: an insulating molded film member provided with a plurality of electrode units in the thickness direction; a guide film means which is formed above the molded film member and guides and supports the mounting of a tracking chip to the molded film member; the tracking chip which is conductively connected to an upper end part of the electrode units of the molded film member; and a fixing means for fixing the tracking chip to the guide film means, wherein electrode unit lower end parts protruding from socket frame holes formed at positions corresponding to the electrode units are connected to a pad of a socket printed circuit board.