Breaking News
Comments
Newest First | Oldest First | Threaded View
sensorsic
User Rank
Rookie
re: Silicon carbide ready for prime time
sensorsic   5/15/2008 12:33:39 PM
NO RATINGS
Other efforts have demonstrated operation of SiC IC's at much lower (T < 350C) temperatures, or very brief (less than few hours) operation at T ? 500C. NASA's SiC integrated circuit is the first semiconductor integrated circuit (for ANY semiconductor material) ever reported to demonstrate prolonged stable electrical circuit operation at 500 C. NASA is at 5000 hours of 500 C electrical operation and still counting for one of their demonstration circuits. This "proof of principle" demonstration differential amplifier integrated circuit only had three resistors and two transistors. The NASA / ITC goal for the next generaton of SiC chips that are fabricated starting from scratch is to increase the transistor count at least 100-fold. The process of up-scaling the SiC integrated circuitry to much higher levels of integration (i.e., up-scaling to IC chips with thousands of transistors) should be straightforward from previously developed silicon and GaAs IC technology, so the belief is that this can occur pretty rapidly now that the thermal durability breakthrough has been made. In 2000 NASA used an Endevco silicon-based accelerometer as the benchmark to validate the NASA Glenn SiC high-g accelerometer. Tests showed the NASA device operated as well as the Endevco benchmark device, but at higher temperatures. This initial result led to discussions between Endevco and Glenn about licensing opportunities to acquire Glenn?s SiC pressure and accelerometer sensor fabrication and packaging technologies. A license to three patents was eventually signed. The ITC work is moving the technology into the realm of commercial viability for on engine SiC hardware.

SiCasaparrot
User Rank
Rookie
re: Silicon carbide ready for prime time
SiCasaparrot   2/26/2008 8:57:52 AM
NO RATINGS
Can you explain why, if this is the world's first SiC IC, Inprox are talking about simplifying the design? Does Endevco's existing deal with NASA not qualify as the the first SiC IC?



EE Life
Frankenstein's Fix, Teardowns, Sideshows, Design Contests, Reader Content & More
Max Maxfield

Steve Wozniak Reacts to Latest iPhone
Max Maxfield
6 comments
Funnily enough, just a few days ago as I pen these words, I was chatting with my wife (Gina the Gorgeous) when she informed me that -- as a kid -- she had never played at making a ...

EDN Staff

11 Summer Vacation Spots for Engineers
EDN Staff
20 comments
This collection of places from technology history, museums, and modern marvels is a roadmap for an engineering adventure that will take you around the world. Here are just a few spots ...

Glen Chenier

Engineers Solve Analog/Digital Problem, Invent Creative Expletives
Glen Chenier
15 comments
- An analog engineer and a digital engineer join forces, use their respective skills, and pull a few bunnies out of a hat to troubleshoot a system with which they are completely ...

Larry Desjardin

Engineers Should Study Finance: 5 Reasons Why
Larry Desjardin
46 comments
I'm a big proponent of engineers learning financial basics. Why? Because engineers are making decisions all the time, in multiple ways. Having a good financial understanding guides these ...

Flash Poll
Top Comments of the Week
Like Us on Facebook
EE Times on Twitter
EE Times Twitter Feed

Datasheets.com Parts Search

185 million searchable parts
(please enter a part number or hit search to begin)