BiTS Workshop – The Next 15 Years

Thanks to the BiTS Committee for the hard work to make this a great event!
Thanks to the BiTS Committee for the hard work to make this a great event!

Wow! The Burn-in and Test Strategy (BiTS) Workshop just turned 15! The world of semiconductors has certainly changed over the years. And the BiTS Workshop has kept up with what is “Now & Next” in the burn-in and test of packaged integrated circuits (ICs). These achievements were celebrated in style by the more than three hundred participants at the recently held 2014 BiTS Workshop in Mesa, Arizona.

“When the BiTS Workshop started in 2000, there were no Continue reading “BiTS Workshop – The Next 15 Years”

Riding Off Into the Sunset – BiTS 2013

Sunset over Phoenix, Arizona during BiTS Workshop
Sunset over Phoenix, Arizona during BiTS Workshop

As the Burn-in & Test Strategies (BiTS) Workshop 2013 fades into the sunset (queue the music), here is a round-up of the highlights. There were gun fights in the corral as well as technical questions for the presenters. The saloon girls and gunfighters took an edge off of the “geek” factor. This year over three hundred fifty people come to the “Circle BiTS Ranch” (aka the Hilton in Mesa, Arizona) for the premier conference focused on what is new and next for semiconductor test tooling and strategy. Oh, did I mention that the theme this year was Western?

This was the 14th annual BiTS Workshop, which has achieved the perfect conference trifecta of Continue reading “Riding Off Into the Sunset – BiTS 2013”

IEEE Semiconductor Wafer Test Workshop 2012 – Session 3 (Monday)

Semiconductor wafer test workshop swtw sign

Here are the highlights from Session Three “Probe Potpourri” of the 22nd annual IEEE Semiconductor Wafer Test Workshop (SWTW) from Monday June 11, 2012.

Larry Levy (FormFactor, Inc.), “Is Parametric Testing About To Enter a Period of Growth and Innovation?”:

Upwards of one thousand facilities perform parametric wafer testing (based on 2009 market data) with over a third of these using obsolete test equipment. There have been no really new testers in several years – Agilent still has their 40xx series and Keithley has their S530 tester. And several companies have exited the market and some companies (including Keithley) are no longer supporting older models of testers. Since parametric testing remains an essential process, this has forced a high number of these facilities to use obsolete equipment or find other approaches. A few companies are going as far as using an Advantest 93000, a significantly more expensive and highly sophisticated digital tester, for parametric test. [Updated to clarify Keithley’s status.]

Parametric testing can be divided into three categories: in-line, end of line (EOL), and quality and reliability. In-line testing is  Continue reading “IEEE Semiconductor Wafer Test Workshop 2012 – Session 3 (Monday)”

Silicon Valley Test Workshop – 2nd Year “Rocks”

2 5D? 3D? What? 3D IC Packaging - Ira Feldman
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Back for the second year (with a minor name change), the Silicon Valley Test Workshop is an unpolished gem. Looking past the rough edges (minor logistical issues), what really shines through is the interaction of the participants. This conference really has Continue reading “Silicon Valley Test Workshop – 2nd Year “Rocks””

Semiconductor Wafer Test Technology and Trends: Lessons for MEMS Test Engineers

Lessons for MEMS Test Engineers
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The MEMS Testing and Reliability 3rd Annual Conference gets high marks: excellent speakers focused on an emerging topic and it was large enough to have “critical mass” while allowing everyone to interact. It was well produced by MEMS Investor Journal and MEPTEC.

My presentation, “Semiconductor Wafer Test Technology and Trends: Lessons for MEMS Test Engineers“, covered the differences between testing semiconductors and microelectromechanical systems (MEMS). I reviewed the progress in test technology over the last fifty plus years, from simple cantilever probe cards to large full wafer contact probe cards, developed to reduce the cost of test.

I discussed lower cost solutions that appear counter-intuitive since they require increased technical and operational complexity. Challenges of testing MEMS devices while still on wafer (prior to packaging and singulation) were discussed along with a review of MEMS solutions at this year’s IEEE Semiconductor Wafer Test Workshop.

With the proper skills, experience, and perspective it is possible to avoid “re-inventing the wheel” and to develop the best strategy to profitably introduce new technologies to high volume manufacturing.