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IEC 61191-6 : 1.0

IEC 61191-6 : 1.0

PRINTED BOARD ASSEMBLIES - PART 6: EVALUATION CRITERIA FOR VOIDS IN SOLDERED JOINTS OF BGA AND LGA AND MEASUREMENT METHOD

International Electrotechnical Committee

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Table of Contents

FOREWORD<br>INTRODUCTION<br>1 Scope<br>2 Normative references<br>3 Terms and definitions<br>4 Voids in solder joints<br>5 Measurement<br>6 Void occupancy <br>7 Evaluation <br>Annex A (informative) - Experimental results and simulation <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;of voids and decrease of life due to <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;thermal stress<br>Annex B (informative) - X-ray transmission equipment<br>Annex C (informative) - Voids in BGA solder ball<br>Annex D (informative) - Measurement using X-ray transmission <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;imaging<br>Bibliography

Abstract

Describes the evaluation criteria for voids on the scale of the thermal cycle life, and the measurement method of voids using X-ray observation.

General Product Information

Document Type Standard
Status Current
Publisher International Electrotechnical Committee
Committee TC 91

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