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July 16 Single Layer PCB vs. Double Layer PCB in Automotive LED Headlight Bulbs Sidst udgivet den 16-07-2018

In normally, FR4, Aluminum PCB as well as Copper PCB all can be made into single layer PCB or double layer PCB
 
Single Layer PCB
Solitary layer PCB is one of the most generally utilized, since it is simple to layout and also practice. This PCB covered a performing product on the one side of the board. Single layer PCB with an excellent warm dissipation, each chip dissipates warmth on one PCB, the LED front lights could be in a high lumen. However the size of 2 chip of 2 solitary layer PCB is as well vast that is over 3mm. Limited by the width, it can not mimic the halogen light bulb tungsten cable, the beam is not clear with a dark location.
 
Double Layer PCB.
This PCB covered 2 conducting material on the both side of the board. It gives a closer range between both side of the chips, which resembles the density of halogen light bulb tungsten cable. For this outcome, it imitates the halogen bulb light-emitting forms, the beam is more much better. Nonetheless, the both side of chips dissipate warm on one PCB, the heat can not be too high, so it limits the lumen for LED front lights.
 
It is not count on the area of PCB about the PCB heat dissipation issue. Thermal Management technology is one more core component of PCB application. In the following post, I will discuss thermal administration Printed Circuit Board (PCB) modern technology, especially SINKPAD Technology, it is the effective service to auto led lighting.

July 11 Aluminum PCB vs.Copper PCB, Benefits and drawbacks Sidst udgivet den 11-07-2018

Price Comparison
The copper PCB is one of the most costly types in metal core published circuit board. The thermal conductivity is better compared to light weight aluminum PCB, this is generally made use of in high frequency circuit design.
 
Thermally Conductivity Comparison
The thermal conductivity of copper PCB is double greater than that of light weight aluminum PCB. The higher the thermally conductivity is, the greater transfer efficiency is and the much better thermal diffusivity is. Copper PCB requires a thick copper aluminum foil for its big present bring ability.
 
Innovation Practices
As copper PCB is needed to have a great present transportation, a thick copper aluminum foil is required, generally, the density is 35?m ~ 280?m. A hefty copper PCB is produced in the same way by etching thick copper outfitted laminated board material. It utilized layering modern technology and a combination of plating and also etching to form the hefty copper features that causes trace sidewalls as well as ignorable damaging. Copper PCB can be etched fancy pattern and also processed into a convex system. The parts could connected on the system to attain the effect of outstanding grounding and also warm dissipation.CSP Led is a chip made by chip-scale package (CSP), which is a kind of incorporated circuit package.The dimension of CSP led is 2mm * 1.6 mm. LUMILEDS LUXEON ZES and SEOUL Semiconductor Z8Y11 are the most popular CSP chips on application.
 
CSP is based on flip chips modern technology, CSP is make LED smaller size with very same power. CSP's are usually constructed making use of a lead structure, wherein several gadgets could be included on the very same substratum, permitting the assembly of many packages wholesale. Doing so optimizes making use of interposer location. A regular chip scale product packaging procedure begins with the placing of the die on the interposer making use of epoxy, usually of non-conductive kind (although conductive epoxy is additionally utilized when the die behind should be connected to the circuit). The die is then wirebonded to the interposer utilizing gold or aluminum wires. Due to the fact that the process circulation of CSP light grains is complicated and delicate, its production expense and also application price are relatively high.
 
CSP could be designed on led front lights bulb to simulate the halogen filaments appropriately. And also A collection of CSP LED headlight could offers over 4000 lumen result.

July 4 What is CPS LED Sidst udgivet den 04-07-2018

CSP Led is a chip made by chip-scale bundle (CSP), which is a sort of integrated circuit package.The size of CSP led is 2mm * 1.6 mm. LUMILEDS LUXEON ZES as well as SEOUL Semiconductor Z8Y11 are the most preferred CSP chips on application.
 
CSP is based upon flip chips technology, CSP is make LED smaller size with same power. CSP's are normally developed using a lead structure, where numerous devices can be had on the exact same substratum, enabling the assembly of several plans wholesale. Doing so makes best use of making use of interposer area. A normal chip scale packaging procedure starts with the placing of the die on the interposer making use of epoxy, normally of non-conductive kind (although conductive epoxy is also made use of when the die behind should be connected to the circuit). The die is after that wirebonded to the interposer utilizing gold or light weight aluminum cables. Due to the fact that the procedure flow of CSP lamp grains is intricate and fragile, its production cost and also application expense are relatively high.
 
CSP can be made on led front lights bulb to resemble the halogen filaments correctly. And A collection of CSP LED headlight can deals over 4000 lumen result.