Home > News > Industrial News > How many kinds of dead lights are there in LED?
News
Company News
Exhibition News
Industrial News
Certifications
Latest News

How to Replace a GU10 Bulb?

How to replace a GU10 bulb:
1. Squeeze the clip (or use sucker provided) to release the bulb from the fitting
2. Turn bulb counter clockwise to ‘unhook’ from the power supply
3. Twist new bulb clockwise into position
4. Replace clip

LED Bulbs Vs. CFL Bulbs: Which is Best for Me?

Before we had LEDs, there were compact fluorescent lamps, or CFLs for short. CFLs are fluorescent lamps that emit light from a mix of phosphors inside...

Are LED bulbs energy efficient?

Not only that! Actually, their recent bump in popularity may make you think that these energy efficient bulbs are a new technology. Not really- light ...

Advantages and disadvantages of LED lights

GU10 LED Spotlight manufacturer china Vintage LED bulbs wholesale Plastic with Aluminum LED bulb supplier  advantage: 1. Small size. The LED is basica...

How to choose a good LED lighting?

1.LED brightness is different, the price is different. LEDs for LED luminaires should be Class I laser class. 2.Strong anti-static LED, long life, an...

The key to LED lighting technology lies in these

1.Optical performance (light distribution) The optical performance of LED lamps mainly involves performance requirements in terms of photometry, spect...

UVC LED Embedded Disinfecting Face Mask Reaches $1M Fund on Crowdfunding Platform

We have now learned that COVID-19 is transmitted through droplets or surfaces contact of the infected individuals. As a result, wearing mask and inten...

The past and present of LED filament bulbs(part 2)

Where does the LED filament lamp come from? As early as 2008, Nippon Nippon Lamps introduced a filament lamp imitation of traditional incandescent lam...

LED color temperatures and how to choose the best ones

LED color temperatures and how to choose the best ones
What is a Kelvin?
What are LED color temperatures?
How to choose the perfect color temperature
Looking for affordable LED lights that’ll dramatically reduce your energy bill?

Yujileds® LED Matrix Solution with Full-color Functions

Yujileds® Matrix aims to provide high-density illumination with high-performance white, tunable-white light and full-color lighting options for a var...

How to choose LED light bulbs?

Here are a few things to consider when choosing LED light bulbs...
Efficiency, Colour Temperature, Colour Rendering, Heat Output, lifetime, etc.

2019 Global LED Display Market Outlook

2019 Global LED Display Market Outlook - Cinema, Rental Market and Price Trends According to the latest research report "2019 Global LED Display Marke...

Innotech wish you happy thanksgiving day!

It is Thanksgiving day today, a public holiday celebrated on the fourth Thursday of November in the United States, also it is a harvest festival today...

Trick or treat! Money or eat! INNOTECH Wish you a happy Halloween!

"Trick or treat! Money or eat!"  Here all the members from INNOTECH wish you a happy Halloween! Innotech is a professional manufacturer and exporter s...

Which five major factors will affect the life of LED lights?

If you use a light source for a long time, you get huge economic benefits and a reduced carbon footprint. Depending on the system design, flux reducti...
Contact Us
INNOTECH INDUSTRIAL COMPANY LIMITED
Office:#1201, 12/F., Anhui building, No.6007 Shennan Road, Shenzhen, China.
Tel: +86-755 8276 9313, 8276 9316, Fax: +86-755-8276 9319
Wechat: +8618938659461, Whatsapp: +8618938659461
Email: info@innolitech.com, Website: www.ledlightingsupplierchina.com Contact Now
On-line catalogue

News

How many kinds of dead lights are there in LED?

Innotech Innolite 2018-03-12 11:05:30
01.Poor antistatic ability of the chip

LED(LED bulbs for home) anti-static index depends on the LED chip itself, and the package material is expected to package process unrelated, or influence factors are very small, very small; the LED lamp is more vulnerable to electrostatic damage, which is related with the two pin spacing, LED chip of the bare wafer two electrode spacing is very small, generally is less than one hundred microns, and the LED pin is about two mm, when the electrostatic charge transfer, the greater the spacing, the easier the formation of large potential difference voltage is high. Therefore, after sealing the LED lamp, it is often more likely to have a static damage accident.


02.chip epitaxy defects

LED epitaxial films at high temperature in the crystal growth process, substrate, MOCVD reaction cavity residual sediment, peripheral gas and Mo source are introducing impurities, these impurities will penetrate into the epitaxial layer, prevent GaN crystal nucleation, the formation of a variety of epitaxial defects in the epitaxial layer, the final surface form small potholes, these are also serious effect of crystal quality and properties of epitaxial wafer thin film materials.

03. Residue of chip chemical

Electrode processing is the key process to make LED(LED Panel Downlight manufacturer china) chips, including cleaning, evaporation, yellow light, chemical etching, fusion and lapping. It will touch many chemical cleaning agents. If chip cleaning is not clean enough, it will make harmful chemicals residues. These harmful chemicals in LED power, electrochemical reaction and electrode, resulting in death, light attenuation, dark light, blackening phenomenon. Therefore, it is very important to identify the chemical residues of the chip for the LED packaging plant.


04.the damage of the chip

The damage of LED chip will lead to the failure of LED(Opal Plastic LED light bulbs) directly, so it is very important to improve the reliability of LED chip. In the process of evaporation, the chip is sometimes fixed with a spring clip, so a clip can be produced. If the yellow light is not fully developed and the mask has a hole, there will be more metal in the luminous area. During the process of pre production, all processes such as cleaning, evaporation, yellow light, chemical etching, fusion and grinding must use tweezers and flower basket, carrier and so on. Therefore, there will be a scratch on the grain electrode.
Effect of chip electrode on the chip electrode itself: solder deposition is not solid, resulting in wire electrode loss or damage; the chip electrode itself will lead to poor weldability, welding ball weld; chip storage improper oxidation electrode surface, surface contamination and so on, the bonding surface of slight pollution may affect the metal atoms between the two the diffusion caused by failure or weld.

05.The incompatibility of the new structure process chip and the light source material

The new structure of the LED chip electrode has a layer of aluminum, which acts as a mirror to form a mirror in the electrode to improve the efficiency of the chip. Secondly, it can reduce the amount of gold used to evaporate the electrode and reduce the cost to a certain extent. But aluminum is a relatively active metal. Once the packaging plant is controlled strictly, the aluminum reflective layer in the gold electrode will react with chlorine in the glue, resulting in corrosion.