Yanming Optoelectronics, which invested in the Taiwanese company, was officially listed on September 27.
Taiwan's semiconductor probe card manufacturer Wang Silicon (6223) transferred investment in Ming Ming Optoelectronics (3575) has been sent to apply for registration, September 27 began listing transactions. When applying for registration, the share capital of the company is NT$360 million. The main business products are the OEM process of the LED chip, including grinding, laser cutting, spot testing, picking and sorting, and manual visual inspection. The current process is based on 2 sapphire epitaxial wafers. The company is developing a post-stage process for 4 å‹ epitaxial wafers and 6 å‹ epitaxial wafers. From 2007 to 2009, Yan Ming continued to lose money. In the first half of 2010, he began to turn losses into profit. The revenue was 234 million yuan, up 100% from the same period of 2009. The gross profit margin was 17.68%. The net profit after tax was 26.58 million yuan. Pure benefit 0.65 yuan.
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.
Ultrasonic Sensor,Piezo Sensor,Ultrasonic Piezo Disc,Ultrasonic Piezo Elements Zibo Yuhai Electronic Ceramic Co., Ltd. , https://www.yhpiezo.com
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].