Today is 2020-07-07 Tuesday,Welcome to this site 


Company News

Where is the LED chip using a ceramic substrate relative to the aluminum substrate?

Word:[Big][Middle][Small] QR Code 2019-9-16     Viewed:    
  Many sapphire wafers were mostly fixed with aluminum substrates, but with the development of high power density of 1W/3W/5W/10W/15W/20W/30W, the thermal conductivity and insulation functions of aluminum substrates and temperature resistance are difficult to meet. Product design requirements, because many customers of LED chips use ceramic substrates instead of aluminum substrates. DPC ceramics Xiaobian introduced, then LED chips use ceramic substrates relative to the aluminum substrate is good?

DPC ceramic

  The thermal conductivity of the ceramic substrate is stronger than that of the aluminum substrate

  1, the thermal conductivity of the ceramic substrate is 35W-50W, which is ten times that of the general aluminum substrate. Excellent thermal conductivity makes the chip package very compact, which greatly increases the power density and improves the reliability of the system and device.

  2, the current carrying capacity is large, 100A current continuously passes through 1mm wide and 0.3mm thick copper body, the temperature rise is about 17°C; 100A current continuously passes through 2mm wide and 0.3mm thick copper body, the temperature rise is only about 5°C;

  3, low thermal resistance, thermal resistance of 10 × 10mm ceramic substrate 0.63mm thickness ceramic substrate thermal resistance is 0.31K / W, 0.38mm thickness ceramic substrate thermal resistance is 0.19K / W, 0.25mm thickness ceramic substrate The thermal resistance is 0.14K/W.

  4, high insulation withstand voltage, to protect personal safety and equipment protection.

  5. Able to implement new packaging and assembly methods to make the product highly integrated and compact.

  DPC ceramics Xiaobian introduced, the aluminum substrate used in LED has a thermal conductivity of 1.0-2.5, and the thermal conductivity of the ceramic substrate can go to 30~50. LED professional use of ceramic substrate can greatly improve the thermal conductivity, outstanding insulation function. And the electrical function can make the LED lighting more stable, and it is not easy to affect the service life due to the high temperature.

Go Back
Print
0562-2290098 0562-2296887
浏览手机站