Issue link: https://iconnect007.uberflip.com/i/1367446
MAY 2021 I SMT007 MAGAZINE 25 tions, diagnostic equipment and things that are human implantable. Matties: You have something that lines up for automotive as well? Perry: Yes. We published our first ever document dedicated to automotive electronics, IPC-6012DA, in early 2016. Many of our standards over the years have been developed by volunteers representing the militar y-aerospace community; if you com- pare them to other industry segments like med- ical or automotive, the military-aerospace com- panies have relatively lower production runs of printed board panels. As such you'll hear the question, "I'm building a production lot of five panels or 50 panels; how much testing do I have to do to verify the conformance of the produc- tion lot to the IPC-6012 specification?" With the military-aerospace community, they will usually say something like, "Test samples taken from a lot of the panels" or even, "Test every panel you build." In automotive and medical applications, fabricators would push back and say, "Wait a second. ese are runs of a thou- sand production panels at a time because it's mass volume for our automotive customers. We can't possibly meet the testing frequen- cies used by the military-aerospace commu- nity." So, not only did the medical and automo- tive communities have different requirements, they needed different sampling frequencies for verifying the quality of the printed board pro- duction runs as well. ose two things led to developing these addendums. Matties: I notice here in the list of work groups that there is a designator on IPC-A- 610 indicating China. Is the only difference the language, or are there differences in stan- dards? Rowe: No, we have regional committees in Europe and in China, and these regional com- mittees will review the comments and make their recommendations for disposition. at information is provided to the larger commit- tee that meets at least twice a year, typically face-to-face or in a teleconference environ- ment. In that larger 7-31bv committee meeting, the input from the 7-31B-EU (from Europe) and 7-31BV-CN group (from China), will be considered during discussion. en, when the larger group is ready to vote on the disposition of the comment, the votes from those regional committees will carry forward. ere's usually a spokesperson for each who says, "Yes, we vote in favor of the motion that the large commit- tee is making," or, "No, we do not." By doing that, we can get input from those two regions by participants who might not be able to attend the large committee meeting because of time zones or travel concerns and issues. Johnson: How does someone like me identify the committee and what it does? Rowe: Our committees are organized into gen- eral committees by technology. If a committee ends with a zero in its number, that is a gen- eral committee that typically has a group of subcommittees and task groups under it. Each general committee has industry leaders over- seeing the projects in that grouping from the volunteer perspective while IPC staff is over- seeing the projects from the standards devel- opment perspective. Matties: For example, 4-10 would be the top level or the zero and you would have a fabrica- tor voice on that over the others. How do you attract people to that position? Is it volunteer or do you invite people? How does somebody get involved at the general committee level? Rowe: General committee leaders are volun- teers selected by IPC and oen include discus- sion with the TAEC chair. e people selected John Perry