caLogo

Features Articles

Mike Buetow

For more than 20 years, PCD&F/CIRCUITS ASSEMBLY has been proud to be the exclusive publisher of the annual NTI - 100 list of the world’s largest board fabricators.

One of the striking changes over the years has been the reshaping of the industry geographical landscape.

In this year’s rankings, which begin on page 32 of the August 2022 issue, see how many Europe- and US-based companies are in the top 25. I'll save you the suspense. One each: AT&S and TTM Technologies, respectively. Long gone are the days when Photocircuits, Sanmina, Hadco, Viasystems and the like dominated the top of the chart.

Read more ...

Peter Bigelow

A thwarted vacation provides lessons in the importance of timely communication, training and skilled staff.

Summertime was here, and after a couple years that seemed more like a couple decades hunkering down under the Covid cloud, it was finally time to take a vacation. Based on the Covid protocols at the time, we decided not to travel abroad but instead return to one of our favorite domestic vacation spots. Resort accommodations were booked, airline tickets purchased, and a rental car secured. Now we waited for the day to come for our first real pre-pandemic trip, wondering, with everything booked well in advance, what could possibly go wrong?

Read more ...

Strategies for finding a long-term employer-employee fit.

Read more ...

Greg Papandrew

Shortsighted approaches lead to overspending.

Most air freight – including for printed circuit boards – is hauled in the cargo holds of passenger aircraft. While the number of available flights is slowly increasing as Covid restrictions lessen, the price is still high, and getting PCBs delivered on time and at a reasonable cost remains a significant challenge for buyers.

That’s why they should negotiate with suppliers for a “delivered” price.

Read more ...

AI is spreading quickly into sensors and will drive an even greater appetite for data.

Read more ...

Filemon Sagrero

Correlating inspection trending with test data to fine-tune accept/reject parameters.

Industry 4.0 automated inspection technology opens the door to enhanced levels of process control. In addition to having to upgrade equipment, however, fully leveraging the power of this technology requires a strong team, an accurate program validation database, and a methodology to track trends in continuous improvement activities. Here is a look at an implementation process for inline 3-D solder paste inspection and 3-D automated optical inspection following reflow on SigmaTron’s SMT lines in Tijuana.

A planned phase two of this implementation includes adding 3-D AOI to secondary assembly operations post-SMT, plus correlating AOI trending with final test data to fine-tune AOI acceptance/rejection parameters. The facility is currently averaging 50ppm defect rates across its SMT lines. The goal of this greater inspection process is to drop that to zero defects; although, given material constraints are driving a defective component rate that represents a third of that 50ppm level on some programs, zero ppms may be unachievable until material availability returns to normal.

Read more ...

Page 26 of 156

Don't have an account yet? Register Now!

Sign in to your account