Recent In Compliance Articles

1 Introduction

This will be a different type of blog. I will primarily be pointing to two recent articles I have written which appeared in In Compliance magazine. The following paragraph is how In Compliance magazine describes itself in the About section of their web site.

In Compliance is committed to delivering information that impacts electrical/electronics engineers in their daily work. We provide coverage of regulatory compliance issues, technical explanations and guidance, and inspiring new developments and technologies.

I recommend this magazine, it has a lot if interesting articles, and best of all it is free, with the usual registration for trade magazines. Check it out at

The Electrostatic Discharge Association (ESDA) has a regular column in the magazine on ESD and related standards and issues called “Hot Topics in ESD”. The articles are usually in a Question and Answer format. The article in the August 2019 issue was on Cable Discharge Event (CDE) and the November article was on pin combinations in Human Body Model (HBM). In the next two sections I will discuss what is presented in the two articles, as well as provide links to the full articles.

2 Cable Discharge Event

CDE occurs when a cable (ethernet, USB, HDMI, etc.) becomes charged and discharges into a system when plugged in. CDE is often described as being similar to a transmission line pulse system, but this is an oversimplification. The articles explains some of the issues involved in cable discharge and can be found at:

3 Pin Combinations in HBM Testing

HBM testing is performed by stressing a single pin on an electronic device versus one or more other pins on the device. In the joint JEDEC/ESDA HBM standard JS-001 there is a choice between two tables describing the required pin combinations. Table 2B is the traditional set of pin combinations from the earlier JEDEC and ESDA HBM standards. Table 2A is a new set of pin combinations, which can significantly reduce the number of individual stresses to the device under test, saving test time and reducing wear out. The price for using Table 2A is the need for increased knowledge of the device being tested. The HBM article in In Compliance gives practical guidance for choosing which pin combination table to use. It is also the only technical article that I know which has a reference to William Shakespeare. The article can be found at:

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