He connected the LED light-emitting components with a much smaller wire than the hair, which required enough care and patience, and Li Cheng had been working in this line for 10 years.
He is a "big coffee" for LED research and development. He has dozens of LED-related patents and is also a leader of several national and provincial research projects.
In the past 10 years, he has been involved in the research and development of thousands of LED products, from ordinary lighting, street lamps to LED displays, the light they emit, perhaps a bunch of lights that have illuminated your face.
In the photoelectric life test room, one LED lamp is placed on the iron frame. As the last step before mass production, Li Cheng is still very obsessed with the control of product quality, and strives to be perfect.
In the packaging laboratory, Li Cheng is fully engaged in the wire bonding machine.
In the reliability lab, LED products need to undergo the test of thermal shock test to ensure normal operation in extreme weather.
In product development, Li Cheng is striving for the pursuit of perfection. LED products generally go through four steps of experiment, verification, trial production, and mass production from conception to landing. In this process, there will be multiple generations of product changes, and it is necessary to overcome numerous technical problems.
Li Cheng clearly remembers that a few years ago, when he led the team to develop an outdoor high-reliability LED component, it had already reached the stage of putting the product into small batch production. In the course of the test, he found that the component was There are still small defects in adapting to the changing environment of the outdoors.
The LED panel of the large-size LCD TV backlight is densely packed with light-emitting elements.
This discovery made him face a dilemma: whether to ignore the defects and continue to put into production? Or to overthrow the past design and re-develop? You must know that before this, in order to develop this product, the team led by Li Cheng has been investing for 3 years. Time, investing more than one million yuan. "At the time, the whole team was very low, and I was quite entangled." But in the end, Li Cheng decided to give up the flawed research program and lead the team from scratch.
"We can't tolerate any product defects in our hearts." Two years later, this "new substrate high-power LCD" came out, and the product also won the "Guangdong Science and Technology Award Second Prize."
In the photoelectric life test room, one LED tube is neatly arranged on the iron frame. As a final test, Li Cheng has strict control over product quality.
As a research and development trader in the LED industry, Li Cheng has always been enthusiastic and embarrassed about LED products: "Compared to traditional lighting products, LED products have many advantages such as energy saving, environmental protection, green security, etc., and should allow more people to use LED products. ."
Speaking of the understanding of the "artisan spirit" mentioned in the two sessions this year, "excellence" is a word he constantly mentioned: "I just want to make LEDs better, develop more products, and let more people Can enjoy the light."
Piezoelectric Ceramic are a ferroelectric compound. This means, that the electro-mechanical conversion process for producing a motion is related a kind of self-enhancement process based on an internal reorganization of the material's structure. This self-enhancement process results in the higher piezoelectrical efficiency of PZT when compared to natural materials like quartz.
Piezoelectric ceramic are generally manufactured from PZT (Pb - lead, Zr - zirconium, Ti - titanium). The PZT- formulation can be varied with a variety of dopants allowing for a broad spectrum of material properties optimized for different application profiles.
Yuhai Company is able to manufacture piezoelectric ceramic elements in a wide range of shapes and sizes. piezoelectric discs, piezo rings, piezo plates, and piezo tubes (cylinders) is the main shapes Yuhai Company most frequently manufactures, we also have a great deal of experience manufacturing hemispheres, trapezoids and other customized shapes.
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Zibo Yuhai Electronic Ceramic Co., Ltd. , https://www.yhpiezo.com