High-end black dragon, heavy gold to build
Powerful giant color Since the company reached a comprehensive deep strategic partnership with Guoxing Optoelectronics, the high-quality SMD lamp beads have been continuously supplied to the production line. The powerful giant color “Black Dragon†T series products have been upgraded and replaced with the national star photoelectric gold line solution SMD lamp beads. Greatly improved the stability and display effect of the high-end "Black Dragon" series of products, can be described as a heavy gold.
Jin Yuxin, long time
The gold wire used in the gold wire scheme is made of material with a purity of 99.99% or more, and contains a small amount of Ag, Cu, Fe, Mg, and Si components. The performance is stable, but the price is high, in the high-end packaging field. Forever high choice, acting on anti-oxidation to ensure stable contact. Although many alternative materials continue to mimic gold wire products, they have not been able to exceed the huge advantages of using gold wire solutions.
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High strength oxidation resistance
The key alloy wire used in the gold wire scheme---Au is the most inert and stable metal in the metal. Through the 30 ° C * 60% RH * 168H test, the solder ball, the bonding wire did not undergo any oxidation, ensuring stable contact.
Protection chip in complex use environment
The low hardness and yield strength characteristics of Au ensure that the electrode does not fall off in the back pressure test of -7V, 85°C, 85% RH, and 120h. The chip has no dark damage and exhibits strong electromigration resistance.
Mature and stable process
Based on Au's good ductility and weldability, no inert gas protection is required for wire bonding, and the process is more mature with higher yield and stability.
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Always imitated, never surpassed
Compared with the heavy gold of the powerful giant “Black Dragon†T series, many manufacturers have not used it for cost control, instead they have searched for various alternative materials, and derived three different advantages and disadvantages of alloy wire, silver wire and copper wire. Wire.
Alloy wire, also known as silver alloy wire, is a product that replaces traditional gold wire in the LED industry. In recent years, the price of gold wire used for Led packaging has been increasing, while the price of Led products has been declining. Under the circumstance, a cheap alternative, the alloy wire, has been born. The composition of the alloy wire is mainly 90%-99% single crystal silver, which is doped with a large amount of silver on the basis of gold wire and maintains IMC stable palladium and a small amount of trace elements. The price of the alloy wire is between the copper wire and the gold wire. When soldering with the silver plated bracket, the weldability is better; but it has the same disadvantages as the copper wire, has certain oxidation property, and is not mature in the old wire bonding equipment or To be installed with nitrogen protection.
Silver wire is easier to store than copper wire (copper wire must be sealed, and storage period is short, silver wire does not need to be sealed, storage period can reach 6~12 months), its hardness is soft, machine parameters are not adjusted much; price is in gold Between the wire and the copper wire, there is no gas protection when the wire is used, but the silver wire pull is lower than the gold wire, and some metal characteristics are also inferior to the gold wire.
Copper wire includes single crystal copper wire and palladium-plated copper wire; its low price, various specifications of copper wire used in wire bonding, the cost is only 1/3 to 1/10 of the gold wire, and has a huge cost reduction Application potential; physical parameters such as hardness and yield strength of copper wire are higher than gold and aluminum, and high rigidity makes it more suitable for fine wire bonding; however, copper wire is easily oxidized and the bonding process is unstable.
Use the best core to make the best screen
One hundred thousand hours is the theoretical service life of LED displays, and there will be different degrees of reduction in actual use. The reason is that the lamp bead shell, the die and other devices accelerate aging under high light and heat environment, resulting in a decrease in illuminating effect, aggravation of eccentricity, and direct aging damage of the device bead.
The high-end "Black Dragon" T series products built by the powerful giant color and heavy gold use the national star photoelectric gold wire solution die. The core and screen solutions have alleviated the aging problem of the above products, and the upgrade from the inside to the outside makes the powerful giant The high-end series is even more authentic!
Use the best core, make the best screen, serve customers, create a world-class great company, a respectable company! (This article is a powerful macro submission)
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