Optimal Design of Micro Flexible Type Probe for Auto-burning System with Taguchi Method
| Autor: | Chun-Ting Lu, 盧俊廷 |
|---|---|
| Rok vydání: | 2009 |
| Druh dokumentu: | 學位論文 ; thesis |
| Popis: | 97 This paper develops a micro flexible type probe for the IC Programming,and as by bending probe elastomers to provide an appropriate deflection,so the probe could take load in vertical direction. In most semiconductor manufacturing,IC testing socket employs spring type probe for signal transmission,but for the sake of loosen fit of part and the essence of a spring,the spring type probe could not against lateral vibration and unexpected load. That result in IC burning instability or failure. The spring type probe will appear fatigue behavior after long-term cycles even under a normal usage,and that causes IC burning unstable and unexpected. This research develops a new type probe for IC burning that serves with enough touch displacement and never fatigue happens. In this research,a finite element analysis software is employed to analyze different type of probe shape and material in a new type probe. Finally,an optimal micro flexible type IC probe is suggested for maximum touch displacement,electrical conductivity and never fatigue behavior appears. The results of the analysis show the shortcomings of the structure of flexible probe for the displacement is too small,so the best policy of the implementation of structural analysis and discussion is to seek a larger elastic deformation displacement under the material fatigue strength. In this paper,we evaluate the probe structure parameters by the Taguchi design method,in order to acquire the larger structure elastic deformation and probe tip contact area. The analysis results show the elastic displacement and contact area between probe tip and IC pads with opposite trend,the larger elastic deformation,the more serious tilting angle between probe tip and copper pad,and so the smaller contact area ; the smaller elastic deformation displacement,the larger contact area we get. |
| Databáze: | Networked Digital Library of Theses & Dissertations |
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