Philips Lumileds has reentered the market for blue LED die at SIL and also announced an expansion of the Luxeon S family of multi-emitter packaged LEDs at the Strategies in Light conference. Philips Lumileds has announced the ...
Tags: Philips Lumileds, LED, SIL
Researchers in China have developed an atomic layer deposition (ALD) technique to create distributed Bragg reflectors (DBR) for increasing nitride semiconductor light-emitting diode (LED) output power by up to 43% [Hongjun Chen et al, Appl. ...
Tags: DBR ALD MOCVD LEDs GaN, Lighting, LED
MK Lu, chairman of Taiwan-based Sino-American Sapphire (SAS) stated that the price of polysilicon is likely to return to a reasonable level in China because China's government may announce a preliminary result on the anti-dumping and ...
Tags: SAS, polysilicon, MK Lu
Taiwan-based sapphire wafer makers, viewing that LED demand is unlikely to grow to, have started looking to have sapphire wafers adopted as protection covers for iPhone 5 cameras. Several smartphone vendors including Taiwan-based HTC and ...
The LED consists of (1) a blue LED chip made on a β-type Ga2O3 substrate by using GaN-based semiconductor and (2) a fluorescent material. Compared with a case where a common blue LED chip formed on a sapphire substrate is used, the new ...
Taiwan-based sapphire substrate maker Tera Xtal Technology will establish two subsidiaries in eastern China, each with investment of US$15 million. Sapphire substrate production at the subsidiaires will begin in the second half of 2013 at ...
Tags: LED firms, Tera Xtal, LED industry
Japanese companies from Tamura Corp and Koha Co Ltd have created a white LED using gallium oxide (β-type Ga2O3) and exhibited it at Lighting Japan 2013 from Jan 16 to 18, 2013. The LED consists of a blue LED chip made on a ...
Tags: Japanese companies, LED, gallium oxide
Taiwan researchers have used a self-textured oxide mask (STOM) as a template to enhance the external quantum efficiency (EQE) of nitride 380nm ultraviolet (UV) light-emitting diodes (LEDs) by up to 83% [Kun-Ching Shen et al, IEEE Electron ...
Tags: LED light, LED, LED light extraction
The HB-LED Standards Committee of industry association Semiconductor Equipment and Materials International (SEMI) has approved its first standard ‘SEMI HB1: Specifications for Sapphire Wafers Intended for Use for Manufacturing High ...
Tags: LED, Light, HB LED, LED devices
Several SEMI task forces have been developing standards related to LED manufacturing, and the first of these, describing specifications for 150-mm-diameter sapphire wafers, has now been approved. The HB-LED Standards Committee of SEMI, the ...
Tags: SEMI, LED manufacturing, HB-LED Standard
Significant overcapacity and low LED substrate prices will affect the profitability and viability of many sapphire players in 2013 and beyond. So says a new market report 'Sapphire Substrates 2013' from analyst company Yole ...
Tags: sapphire substrates, low LED substrate, LED, LED makers
Taiwan-based solar wafer maker Sino-American Silicon (SAS) reported 2012 total revenues of NT$4.414 billion (US$152 million) and global consolidated revenues of NT$19.072 billion. In particular, the firm's subsidiary GlobalWafers reported ...
Tags: SAS, solar wafer, revenues, solar
Production of LED chips is typically done on 2- to 4-inch wafers with an expensive sapphire substrate. Toshiba and Bridgelux, Inc. have developed a process for manufacturing gallium nitride LEDs on 200mm silicon wafers, which Toshiba has ...
Tags: LED chips, LEDs, Kaga Toshiba Electronics Corporation, lighting
In general, all the LED products can be divided into two major parts, the public lighting and indoor lighting. LED uses fall into four major categories: Visual signals where light goes more or less directly from the source to the human ...
Tags: LED
Sophia University in Tokyo, Japan, has used nanocolumns of nitride semiconductor to produce different emission color LEDs in a single growth process for what is claimed to be the first time [Katsumi Kishino et al, Appl. Phys. Express, vol6, ...
Tags: Sophia University, LEDs, Sapphire substrates, LEd lighting