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What Colour Is Your White Space?

In virtually every episode of Star Trek, irascible engineer Scottie would say, “Ye cannae change the laws of physics.” And those same laws dictate that the electromagnetic spectrum is finite. Whilst we try to push against the laws by using higher and higher frequencies for transmission, at greater cost and greater complexity, the reaction of governments, both nationally and internationally, has generally been to license specific frequencies to specific users. The most extreme examples of this were the “3G” auctions around the world, where mobile phone operators initially bid seriously silly money for the rights … Read More → "What Colour Is Your White Space?"

Embedding Vision

Remember sitting down at a DEC VT52 terminal?  The screen held 24 lines of text, at 80 characters each.  The font was built in.  VT52 proudly boasted support for all 95 ASCII characters including the desirable but somewhat superfluous lower case letters.  Some special graphics characters were available as well, but the terminal did not support graphics per se.  There was no mouse, no windows, and text editing was only marginally WYSIWYG – mostly using the “vi” text editor. 

Today, it’s hard to think of interacting with a computer, or even a smartphone, without … Read More → "Embedding Vision"

LatticeECP3 FPGA Jamz Music Video

If you enjoyed the original Lattice MachXO2 “pitchman” video in 2010, or the follow-up Power Manager II “pickle” video, check out the latest music video from Lattice featuring the LatticeECP3 FPGA. It’s not surprising that when you mix a great product like the LatticeECP3 with a light-hearted video, the response is going to be win-win for an engineering audience.

Read More → "LatticeECP3 FPGA Jamz Music Video"

Multicore Automation

I used to be a die-hard manual transmission driver. Even before I drove a car, I had learned how to double-clutch for smooth on-the-go gear changing on our Case tractor (which didn’t have synchronized gears because it wasn’t intended to be shifted on the go). My grandmother insisted on a manual transmission up until she stopped driving in her 80s (or later?): “I vant to do it myself!” (That’s a Swiss-German accent there…)

I finally had to rethink my principles when I got a cell … Read More → "Multicore Automation"

Methods of Estimating Component Temperatures

It is well known that IC components heat up during operation as they dissipate power while doing their analog and digital magic. But how can the user determine if a component (semiconductor device) is too hot? Many engineers have seen videos on this or may even have personal lab experience with overloaded components which start to smoke or melt. What is not commonly known, however, is that well below this temperature the component function or reliability starts to degrade. How can you be certain that each component in an electronic system is within its safe operating range? 

< … Read More → "Methods of Estimating Component Temperatures"

Parlez-Vous Mali?

We’ve been talking a lot about ARM lately, and why not? It’s the company behind the world’s most popular 32-bit processor. ARM-based chips outnumber even Intel’s better-known x86 processors, and by a wide margin.

But do you know about Mali?

You know, Mali. That French-speaking country in northwest Africa. The one just south of Algeria and north of Burkina Faso, Ivory Coast, and Guinea. It is perhaps fitting that a country encompassing part of the Sahara desert should lend its name to a semiconductor.

In … Read More → "Parlez-Vous Mali?"

One for All

In today’s global electronics economy and, more important, global techonomy, successful companies have to make careful decisions where they will differentiate and where they will standardize.  Nowhere is this more evident and crucial than in the fabless semiconductor arena.  Since fabless companies have (as the name implies) no fab, they logically do not have the ability to differentiate themselves from their competition by superior semiconductor technology. 

Of course, you wouldn’t know that if you listen to FPGA companies. 

We constantly hear from FPGA vendors that they – and … Read More → "One for All"

Controlling Power During IC Production Test

Many of today’s integrated-circuits (ICs) are designed to operate in low-power modes to accommodate greater analog-digital integration, faster operating frequencies, and battery-powered applications. During semiconductor manufacturing test, the majority of logic is often activated concurrently to facilitate detection of many faults within a small set of patterns to reduce test time. Activating all the logic at once uses more power than these low-power devices were designed to function under, which can cause them to fail or burn out during test.

Read More → "Controlling Power During IC Production Test"

featured blogs
Apr 24, 2026
A thought experiment in curiosity, confusion, and cosmic consequences....