In-process control of leadframe transportation system

Pao Yue-kong Library Electronic Theses Database

In-process control of leadframe transportation system

 

Author: To, Wai-lok
Title: In-process control of leadframe transportation system
Year: 1999
Subject: Semiconductors
Production control
Hong Kong Polytechnic University -- Dissertations
Department: Multi-disciplinary Studies
Dept. of Manufacturing Engineering
Pages: 125 leaves : ill. (some col.) ; 30 cm
Language: English
InnoPac Record: http://library.polyu.edu.hk/record=b1479249
URI: http://theses.lib.polyu.edu.hk/handle/200/1909
Abstract: In the semi-conductor industry, the leadframes are commonly used at the back end of production line. Many mechanisms are designed to transport the leadframes between different processes such as laser mark, dejunk final test and trim/form. This project is to modify a leadframe transportation mechanism with closed-loop feedback control system to improve the productivity, reliability and repeatability with minimum human intervention. This mechanism is a part of a TOL (Test-On-Leadframe) test handler that is used to transport the leadframes in the final test process.

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