Breaking News
Comments
Newest First | Oldest First | Threaded View
krisi
User Rank
CEO
re: Toshiba to commence volume production of white LEDs
krisi   8/1/2012 11:58:53 PM
NO RATINGS
thank you @docdivakar, this is very helpful...would one try to integrate some CMOS circuits if the LED is built on silicon substrates? Kris

docdivakar
User Rank
Manager
re: Toshiba to commence volume production of white LEDs
docdivakar   8/1/2012 10:31:29 PM
NO RATINGS
Kris, it has been mostly GaN on Sapphire so far because the epitaxy buffer layer AlN and the active layer InGaN have so far been processed mostly on Sapphire. That is not the only substrate of choice, there is bulk GaN, SiC (early Cree versions), Si and composites. If yield issues are proven, it makes sense to move away from Sapphire. Ideally, the LED industry has to work toward vertical designs with backside contact which can result in smaller chips. It is not clear if moving to Si substrate achieves that. It is ironic, Toshiba on one end announced cut in its NAND Flash production by 30%. MP Divakar

krisi
User Rank
CEO
re: Toshiba to commence volume production of white LEDs
krisi   8/1/2012 6:59:45 PM
NO RATINGS
Why do you need silicon substrate? GaN substrate would not work? Kris

geekmaster
User Rank
CEO
re: Toshiba to commence volume production of white LEDs
geekmaster   7/31/2012 8:17:30 PM
NO RATINGS
LEDs on 200mm GaN Silicon substrate? WOW!



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

Steve Wozniak Reacts to Latest iPhone
Max Maxfield
9 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)