Fault Detective Test Analyzer 2004 Board Test Workshop Doug Manley - PowerPoint PPT Presentation

Fault Detective Test Analyzer 2004 Board Test Workshop Doug Manley Loveland, CO

Gray Fault Detective Captures Test Paths and characteristic Component Characteristics s untested, green tested Present Nois Ope Present Nois Ope e Test 1 , works n Gai e , works Disto n Gai Disto n correctl rtion Clos n correctl rtion path Clos Flatnes y e Flatnes s y e s PASS capacitor relay amplifier Flatnes s is Present Nois Ope Present Nois Ope unique e , works n Gai e , works Disto Test 2 n Gai Disto n correctl rtion Clos n correctl rtion Clos Flatnes path y e Flatnes s y e s FAIL capacitor relay amplifier Diagnosis : Amp: 94%, Relay: 5%, Capacitor: 1% Test Coverage : Capacitor: 95%, Relay 50%, Amp 40% Test Optimization Software Agilent Confidential Page 2 8/19/2004

Test Analyzer Helps You Compare the Effectiveness of Alternate Test Strategies Internal Test External Test From 73% to 84% Fault Detection From 18% to 53% Diagnostic Accuracy From 3.3 to 1.5 Repair Test Optimization Software Agilent Confidential Page 3 Attempts 8/19/2004

And More Improvements Possible Test Optimization Software Agilent Confidential Page 4 8/19/2004

Understanding the DNA of a Test Process Component Functional FT + AXI FT + AXI + AOI Coverage Type Ref. Designator Part No. Pins Score Grade Score Grade Score Grade Digital LIB u21 1 144 100% HIGH 100% HIGH 100% HIGH Other LIB u17 2 80 38% LOW 76% POOR 82% LOW Digital LIB u11 3 48 86% HIGH 86% LOW 86% LOW Mixed LIB u1 4 28 95% HIGH 95% MED 95% MED Other LIB u2 5 28 98% HIGH 98% HIGH 98% HIGH Other LIB u6 6 28 100% HIGH 100% HIGH 100% HIGH Connector cn1 7 27 0% NO 76% POOR 82% LOW Digital LIB u14 8 6 0% NO 76% POOR 82% LOW Capacitor c118 9 2 93% HIGH 93% MED 93% MED Capacitor c119 10 2 100% HIGH 100% HIGH 100% HIGH Potentia Bypass c12 11 2 0% NO 76% POOR 82% LOW Bypass c120 12 2 0% NO 76% POOR 82% LOW l “No Capacitor c121 13 2 90% HIGH 90% MED 90% MED Capacitor c122 14 2 0% NO 76% POOR 76% POOR Capacitor c123 15 2 0% NO 76% POOR 76% POOR Trouble Capacitor c124 16 2 100% HIGH 100% HIGH 100% HIGH Capacitor c125 17 2 98% HIGH 98% HIGH 98% HIGH Found” Bypass c126 18 2 0% NO 76% POOR 82% LOW Capacitor c129 19 2 0% NO 76% POOR 82% LOW Bypass c13 20 2 0% NO 76% POOR 82% LOW Bypass c130 21 2 0% NO 76% POOR 82% LOW Bypass c131 22 2 0% NO 76% POOR 82% LOW Bypass c132 223 2 0% NO 76% POOR 82% LOW Capacitor c147 24 2 0% NO 76% POOR 82% LOW Capacitor c15 25 2 0% NO 76% POOR 82% LOW Capacitor c150 26 2 100% HIGH 100% HIGH 100% HIGH Bypass c151 27 2 0% NO 76% POOR 82% LOW Capacitor c153 28 2 100% HIGH 100% HIGH 100% HIGH Capacitor c154 29 2 100% HIGH 100% HIGH 100% HIGH Capacitor c155 30 2 88% HIGH 88% LOW 88% LOW Capacitor c156 31 2 90% HIGH 90% MED 90% MED Test Optimization Software Agilent Confidential Page 5 8/19/2004

Fault Detective Test Analyzer The Software Instrument That Predicts Test Suite Effectiveness Test Optimization Software Agilent Confidential Page 6 8/19/2004