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!



Flash Poll
EE Life
Frankenstein's Fix, Teardowns, Sideshows, Design Contests, Reader Content & More
The Engineering Life - Around the Web
Terry Cutler, CTO, Digital Locksmiths

The USB Keys in the Urinal
Terry Cutler, CTO, Digital Locksmiths
Post a comment
Security is a major obsession today, particularly as the industry makes the shift from traditional, standalone devices to the design of connected, networked systems that are “always ...

Engineer's Bookshelf
Caleb Kraft

The Martian: A Delightful Exploration of Math, Mars & Feces
Caleb Kraft
6 comments
To say that Andy Weir's The Martian is an exploration of math, Mars, and feces is a slight simplification. I doubt that the author would have any complaints, though.

Design Contests & Competitions
Caleb Kraft

Join The Balancing Act With April's Caption Contest
Caleb Kraft
58 comments
Sometimes it can feel like you're really performing in the big tent when presenting your hardware. This month's caption contest exemplifies this wonderfully.

Engineering Investigations
Caleb Kraft

Frankenstein's Fix: The Winners Announced!
Caleb Kraft
8 comments
The Frankenstein's Fix contest for the Tektronix Scope has finally officially come to an end. We had an incredibly amusing live chat earlier today to announce the winners. However, we ...

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)