OFweek Semiconductor Lighting Network March 26 news: According to Taiwan media reports, TSMC's venture capital VTAF company's US LED giant Puri Optoelectronics announced on March 25 that the company uses "GaN Gallium" (GaN-On -Silicon's LED technology has achieved 135 lumens per watt. This means that Purui Optoelectronics has become the first manufacturer in the industry to achieve commercial grade performance in the LED technology of semiconductor substrates.
Purui Optoelectronics pointed out that the technological breakthrough in turning to the ruthenium substrate will bring revolutionary progress to the LED industry. The company is confident that it will become a leader in the introduction and use of this technology. According to Puri Optoelectronics research, the performance of gallium nitride on LEDs is comparable to the top sapphire substrate LEDs introduced 12 to 24 months ago. It is estimated that in the next two to three years, GaN LED products used in the commercial market will be available for sale.
At present, most of the LED epitaxial generation uses a sapphire substrate or a tantalum carbide substrate material. However, large-diameter sapphire substrates and tantalum carbide substrates are costly, and processing is difficult, and supply is difficult to obtain. LED lighting products produced by sapphire substrates and tantalum carbide substrates have not been widely used in residential and commercial buildings.
However, Purui Optoelectronics believes that the cost of LED epitaxial products is expected to be higher if the gallium nitride is formed on a larger diameter, lower cost tantalum wafer and a process compatible with modern semiconductor production lines. The existing process is effectively reduced by 75%.
This time, Purui Optoelectronics uses GaN-On-Silicon LED technology to achieve 135 lumens per watt. It is a 1.5mm LED with 350mA current, and its relative color temperature CCT is 4730K. These LEDs require only a very low operating voltage of 2.90 volts to operate in a 350 mA environment. If the current is 1 amp, it is only required to be less than 3.25 volts.
These components are suitable for a wide range of high-performance lighting applications due to their extremely low forward voltage and excellent thermal resistance. The optimized epitaxial process for 8 å‹çŸ½ wafers will make the LED process compatible with current automated semiconductor production lines.
Purui Optoelectronics adopts a light asset operation mode, which mainly uses its own research and development in the field of LED epitaxial, both basic and intellectual property resources, and cooperates with partner manufacturers to produce various bismuth-based LEDs. In order to expand the production of new technology LEDs, the company is currently negotiating with a number of well-known semiconductor manufacturers, plans to use the depreciated 8 å‹ fabs and their processes around the world to produce LEDs.
Bill Watkins, CEO of Purui Optoelectronics, said that Silicon-based LED technology will significantly reduce the cost structure of solid-state lighting, saving large initial investment funds for solid-state lighting manufacturers. It is expected that in just two to three years, even the most price sensitive markets, such as business and office lighting, residential applications and new lighting, will be rapidly transformed into solid-state lighting products.
Yuhai Company is engaged to research and development of piezoelectric products and related piezoelectric products, the related piezoelectric products includes the piezo sensors and transducer.
The Ultrasonic Transducer is a kind of transducer that converts the ultrasonic signal into electric signal, or vice versa. Ultrasound transmitter and receiver is a transducer that can transmit and receive ultrasound. Ultrasound sensor is a kind of sensor, in essence, it is also a transmitter and receiver. The working principle of this kind of equipment is similar to that of radar and sonar. Active ultrasonic sensors can emit and receive reflected waves, and determine the distance of the target by measuring the time interval between transmission and reception. Passive Ultrasonic Sensor is actually a microphone that can convert ultrasonic signal into electrical signal.
According to the working principle and materials used, the ultrasonic transducer has Piezoelectric Transducer, electrostatic transducer (capacitive transducer), magnetostrictive transducer, electromagnetic acoustic transducer, mechanical transducer and other types [1].
Ultrasonic Sensor
Ultrasonic Sensor,Piezo Sensor,Ultrasonic Piezo Disc,Ultrasonic Piezo Elements
Zibo Yuhai Electronic Ceramic Co., Ltd. , http://www.yhpiezo.com