2024-01-09
LED lights with thousands of kinds, SMD, COB and CSP who is the strongest king?
LED lights with thousands of kinds, SMD, COB and CSP who is the strongest king?
01.CSP's leading packaging process
The LED chip, also known as the LED light chip, is the core component of the LED soft strip, which will directly affect the light quality of the LED soft strip. How to break through the technical difficulties of packaged chips is the technical barrier that major manufacturers strive to break through.
The traditional packaging technology used by COB and CSP has complex structure, many and cumbersome processes, complicated construction and high production cost. The illumination of the LED after production will be reduced due to the deterioration of the packaging material by heat and other reasons, and the heat dissipation effect is not good, and the product stability is poor.
After technical improvement, CSP chip adopts "flip chip and chip level technology", low thermal resistance and high electrical stability. Its size is getting smaller and its performance is more stable.
CSP packaging cost is much lower than the cost of traditional packaging technology, can maximize labor costs and packaging costs, cost-effective.
The traditional packaging technology used by COB and CSP has complex structure, many and cumbersome processes, complicated construction and high production cost. The illumination of the LED after production will be reduced due to the deterioration of the packaging material by heat and other reasons, and the heat dissipation effect is not good, and the product stability is poor.
After technical improvement, CSP chip adopts "flip chip and chip level technology", low thermal resistance and high electrical stability. Its size is getting smaller and its performance is more stable.
CSP packaging cost is much lower than the cost of traditional packaging technology, can maximize labor costs and packaging costs, cost-effective.
02. High light color accuracy
The traditional COB adopts the powder process, the color of the mixed light is not pure, the color is not easy to control when the mixed light, and the good color consistency can only be achieved by sacrificing the yield.
The lamp bead arrangement of CSP is more dense, the splitting is carried out before the package, the luminous Angle is larger, the light color accuracy of CSP is relatively high, in the color consistency of mixed light, CSP compared with traditional COB, the advantage is also more obvious.
The lamp bead arrangement of CSP is more dense, the splitting is carried out before the package, the luminous Angle is larger, the light color accuracy of CSP is relatively high, in the color consistency of mixed light, CSP compared with traditional COB, the advantage is also more obvious.
03. Super flexible
The flexibility of COB and SMD is average, if the operation is improper, COB will appear to fall off the package, SMD may make the holder of the lamp bead crack.
And CSP because there is no bracket, gold thread and other vulnerable links, the use of rubber drop protection lamp beads, safe and reliable. The chip is smaller, can be thinner, bending force Angle is small, has stronger flexibility.
And CSP because there is no bracket, gold thread and other vulnerable links, the use of rubber drop protection lamp beads, safe and reliable. The chip is smaller, can be thinner, bending force Angle is small, has stronger flexibility.
04. Suggestions on three product application scenarios
In terms of application scenarios, the application of the three lamps is more extensive, without obvious restrictions
Because of its various sizes available, SMD lamp belt is more widely used, more suitable for indoor hook, waterproof products can also be used for outdoor outline.
COB light belt with excellent linear effect, applied to decorative lighting and props display lighting effect is better.
The CSP lamp belt has a certain linear effect and the best flexibility and bending. And before packaging, the yield and light color accuracy are better than the previous two lamp belts, relatively speaking, the highest cost performance. Therefore, on the whole, it has certain advantages in various applications indoors and outdoors. And its compact size, the application of narrow space advantages are more obvious.
COB light belt with excellent linear effect, applied to decorative lighting and props display lighting effect is better.
The CSP lamp belt has a certain linear effect and the best flexibility and bending. And before packaging, the yield and light color accuracy are better than the previous two lamp belts, relatively speaking, the highest cost performance. Therefore, on the whole, it has certain advantages in various applications indoors and outdoors. And its compact size, the application of narrow space advantages are more obvious.
