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wafer test Yield 的分析及提高

时间:2010-08-15 20:58来源:www.ictest8.com 作者:ictest8 点击:

  本文详细介绍了半导体制造过程中良率的提高分析,运用大量实例说明如何提高良率,作为测试工程师在CP测试中遇到低良率情况时,可以参考此资料,以分析测试及wafer各方面问题,另外本资料也特别适合wafer制造工程师在遇到客户投诉低良率情况下,对wafer为何出现低良的分析,主要内容如下:
CONTENT
Overview
Methodology Introduction
Basic YE Tools & Its Inspection Theories
Problem Description
Particle / Defect Reduction Strategy
In-line Monitor General Flow
Trouble Shooting Methodology
Defect Library 
Yield Management System /Modeling
Contamination control practice
Low Cost Manufacturing

Yield (良率) Definition
                   Typical Value
FAB Yield :                 > 96%
WAT(Wafer Acceptance Test) Yield :     > 99%
CP(Chip Probe) Yield :           > 80%
Package / Assembly Yield :         > 99.5%
Room Temp Test Yield :           > 95%
Burn-in Test Yield :            > 92%
Final Test Yield :             > 95%
Total Yield :                62.8%

@What is YE
YE stand for Yield Enhancement
@缺陷改善工程(Defect Reduction Engineering)

当IC制程持续往轻,薄,短,小及高密度方向发展时,对任何缺陷容忍度将自然相对降低,也即其灵敏度讲大幅提高,所以,想得到良率之提升就必须设法降低缺陷之密度.

How SAMSUNG Increase Device Yield
High Quality Clean Room
Quick and Flexible response to Problems
Ultra Clean Utilities
Well Trained Operators
Excellent Engineering Resources
Quality Maintenance
Customized Equipment
Tight Process Control
Design Optimization for Each Production Line
Data Automation

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具体请下载参考:

training material of Yield Enhancement.part01

training material of Yield Enhancement.part02

training material of Yield Enhancement.part03

training material of Yield Enhancement.part04

training material of Yield Enhancement.part05

training material of Yield Enhancement.part06

training material of Yield Enhancement.part07

training material of Yield Enhancement.part08

training material of Yield Enhancement.part09

training material of Yield Enhancement.part10

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