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DEPARTMENTS Early Life Automotive Electronics Failures and Their Root Causes Peter Jacob In automotive electronics, failures are frequently found that cannot be explained by the failure signatures of the defective devices. Most can be prevented by taking careful precautions in the design phase. The author describes several examples andconcludeswith somebasicprinciples for implementing a system level approach to FA. Advanced Packaging Fault Isolation Case Studies and Advancement of EOTPR Jesse Alton, Thomas White, and Martin Igarashi Electro optical terahertz pulse reflectometry (EOTPR) is now a well-established technique in failure analysis workflows and has been used to interrogate a wide range of distinctive architectures. This article describes a novel acoustic inspection tool oper- ating in the GHz band to extend both the lateral resolution and surface and subsurface sensitivity of acousticmicros- copy. Case studies illustrate the potential of GHz-SAM for inspection and analysis especially in high-reliability applications. Geolocation of Cu Wires During Sensitive IC Acid Decapsulation Michael Obein As IC packages have improved, the initial quality check of the assembly and any required failure analysis are criti- cal to continued IC progress. Among recent technological advancements is the use of copper wires, which need to be protected by stopping the acid decapsulation process at the right moment. 2 GUEST EDITORIAL Lee Knauss and Zhiyong Wang 38 ANADEF WORKSHOP REPORT Julien Perraud 40 ISTFA 2018 EXHIBITORS LIST 41 ISTFA 2018 EXHIBITORS SHOWCASE 42 EDFAS AWARDS 48 MASTER FA TECHNIQUES Dave Burgess High Resolution Acoustic GHz Microscopy Sebastian Brand, Michael Kögel, and Frank Altmann edfas.org ELECTRONIC DEVICE FAILURE ANALYSIS A RESOURCE FOR TECHNICAL INFORMATION AND INDUSTRY DEVELOPMENTS NOVEMBER 2018 | VOLUME 20 | ISSUE 4 24 30 4 16

ELECTRONIC DEVICE FAILURE ANALYSIS | VOLUME 20 NO. 4

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ABOUT THE COVER See page 61 for a description of the contest winners’ collage on the cover.

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52 DIRECTORY OF FA PROVIDERS Rose Ring 54 PRODUCT NEWS Larry Wagner 58 TRAINING CALENDAR Rose Ring 60 LITERATURE REVIEW Mike Bruce 62 GUEST COLUMNIST Peter Jacob 64 ADVERTISERS INDEX

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