Soldering in nitrogen or vapor phase environments can increase the likelihood.
Subtle component lifting can be an issue to find during inspection. Most modern AOI systems should be able to detect drawbridging on small passive and active parts. Old systems may struggle with defects like the two shown in FIGURE 1.
We must retain our new agility even after the pandemic ends.
Nothing makes you flexible like a crisis. Yet, as rough as it can be for a person to quickly shift gears, it is significantly more daunting for a corporation to do so.
The entirety of my working career, the mantra of any good business consultant or culture guru has been be flexible and embrace change. Whether an organization is implementing a TQM (total quality management) plan or struggling with financial survival because “plan A” no longer works, embracing flexibility and rapid change is never easy – and often unsuccessful. The larger the organization, the harder it can be. Embracing change and becoming flexible often only occurs when no other option remains, or in short, extinction awaits.
Some 13 years ago, UP Media Group launched the first virtual trade show for the electronics industry. In some ways – most, probably – we were ahead of the times. People liked it because it was simple to attend, but the platform wasn’t ready for prime time.
That’s not to say it was technically subpar. You could pop in and out of booths and talk to the personnel waiting for you, and I still feel for those folks who, driven by caffeine and excitement (or just an affinity for self-abuse), kept vigil around the clock as attendees in different time zones came on line and into the show. And we held webinars and chats with high-profile experts like Dr. Eric Bogatin. But in the end, attendees seemed to prefer meeting with peers face to face.
Covid-19 is injecting itself into almost every facet of our work and home lives, however, and we have to make some concessions to the times. As such, we have made the difficult but necessary decision to make PCB West a virtual event this year. The call was made following a survey of past attendees and talks with our more than 100 exhibitors.
Get the right stencil for the job.
This month we illustrate an example of what appears at first glance to be poor lead solderability. When examined, however, it is a combination of component and pad design.
FIGURE 1 shows the lead to be floating in the solder joint, suggesting poor wetting. When we examine the component lead and plastic body, however, the lead is not parallel, so it always sits off the pad surface, even if perfectly soldered. The lead sits in a cavity in the component body to maintain its position. But with the size of the pad used in the design and a full solder paste print, the component body will always lift.
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So rampant was coronavirus, it even infected accounting systems.
Day 1: Today the authorities announced local shelter-in-place restrictions. All employees of nonessential businesses must stay home or be subject to fines if caught at the workplace. What to do? Set priorities: define whether we are essential and be prepared to back it up if we are. There is no Essential Business Department in California, like the DMV, to which one can apply and get a Certification of Essentiality. No tests one takes. It depends on one’s OEM customers and flows down to their suppliers. For those of us not named Elon Musk, we are not a law unto ourselves.
Day 2: Met with the crew. Game plan time. Henceforth, the old guys (the “over 60s”) will stay home. That includes (gulp) me. Aging and mortality in one poignant bite. A small crew will remain at our facility, handling day-to-day essential business. (In the preceding 24 hours, we established our corporate essential bonafides.) Headcount will fluctuate daily, depending on happenings. Some will stay home today; others will do likewise tomorrow. I stay home every day pondering the Darwinian way of the world, and my humbling new lot in life as a high medical risk individual. Regardless of work site, all employees will continue to be paid for the foreseeable future. As if we can foresee it. No one will burn PTO if they must stay home. Engineering work will be conducted from home to the extent possible. No onsite customer visits will be allowed until further notice. Living a paradox: keeping it all together, while dispersed. Here we are.
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