TEI-7.5-056-F002 Validation Report_Project Name_Model Name_Station Name_####_Version
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Test Equipment Validation
Tester Type: Project Name: Current revision: Release Date: Psion Doc #: Flex DOC#: Project Name_Model Name_Station Name_####_Version
Revision
Date Author REVISION HISTORY Description of Change Name (printed)
Title APPROVALS (Flextronics) Signature* APPROVALS(Psion) Signature* Date Name (printed) Title
*If file is sent electronically, actual signature will be available on hard copy file.
Date 1/4
TEI-7.5-056-F002 Rev A
1
INTRODUCTION ................................................................................................................................ 3
1.2 Purpose of this document .................................................................................................................... 3 2.2 ACRONYMS AND ABBREVIATIONS ............................................................................................ 3 2 3 3.1. 3.2. 4 5 6 7 8 9
BASIC INFORMATION, SPECIFICATION AND PARAMETERS ............................................. 3 REPEATABILITY PROCESS CAPABILITY ANALYSIS ............................................................ 3 Repeatability (Cg Calculations)...................................................................................................... 3 Process Cabapility (Cp / Cpk Calculations) .................................................................................. 3 TEST SPECIFICATION DEFINED .................................................................................................. 3 TEST PROGRAM CAPABILITY QUALIFY .................................................................................. 3 TEST PROGRAM VERSION CONTROL ....................................................................................... 4 TESTER ORIGINAL LOGS .............................................................................................................. 4 SAMPLES INFORMATION .............................................................................................................. 4 PERFORMANCE OF ANALYSIS ..................................................................................................... 4
2/4
TEI-7.5-056-F002 Rev A
1 Introduction
1.2 Purpose of this document
1.1 ACRONYMS AND ABBREVIATIONS 2 Basic information, specification and parameters
3 Repeatability process capability analysis
This analysis is systematically done for test fixture and program. This process is implemented as below calculation formula.
The target for both calculations is: > 1, 67
Verification / Validation of test equipment by statistical methods (short term analyses)
Automotive: MSA (Measurement System Analysis)
3.1. Repeatability (Cg Calculations) 1 Product / 50times measured Double sided limits Cg = (0,2 x T) / (6 x s) >= 1,67 one side limit: Cpkul , Cpkol >= 1,67
digital measurement: always ?Pass“
T = Upper limit – lower limit s ... Standard deviation
3.2. Process Cabapility (Cp / Cpk Calculations)
min. 50 Products / 1 x measured
double sided limits Cp = T / (6 x s) >= 1,67
Cpk = min(Cpku, Cpkol) >= 1,67 Cpku = (Xm – UL) / 3 s Cpkol = (OL – Xm) / 3 s Xm ... Man value one side limit : Cpkul , Cpkol >= 1,67
Digital measurement: always “Pass“ 4 Test specification defined
5 Test Program Capability Qualify
Installed/ Configuration Non-installed Detected for existence Detected for nonexistence TEI-7.5-056-F002 Rev A
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6 Test program version control Test Program Name Model 7 Tester original logs 8 Samples information
9 Performance of analysis
Version Revised Date Revised by comment 4/4
TEI-7.5-056-F002 Rev A
TEI-7.5-056-F002 Validation Report_Project Name_Model Name_Station Name_####_Version
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