Chroma

58173-01

Model 58173 LED Total Power Test System

58173-p

Key Features:

  • Wide LED power test range (200V/2A)
  • Chroma Huge Photo Detector (Measurement Angle=128°)
  • Semi-automatic LED wafer/chip prober
  • Unique Edge Sensor with stable probe pressure with fatigue and pressure change problem
  • Machine visual position system to minimize the time for manual operation
  • Auto sampling test function
  • Flexible and adjustable software operating interface
  • Fast wafer scanning system
  • Auto broken chip scanning algorithm
  • Lends hood design to eliminate the interference of background light
  • Real-time displaying single spot data scatter diagram
  • Comprehensive mass production test statistic report and analysis tool

 
 

Hardwares

  • Semi-automatic LED wafer/chips prober
  • Leakage test module
  • Source/measure module
  • Optical test module
  • Optional ESD test module

The Chroma 58173, in automatic operation, comes with unique design and a whole new method for LED total power measurement. In bare wafer/ chip LED test production, partial flux correction of total flux is the common measurement method in LED epitaxy industry. (See Figure 1 on flip page) However, conventional method causes some disadvantages, i.e., lower accuracy, low S/N ratio, and slow test time etc., and which are difficult to be applied on LED bar wafer/chip total power/flux test production.

Chroma has developed a high speed and high accuracy measurement method of LED total power/flux. (See Figure 2 on flip page) Appling this innovative test method enhances to gather more LED partial flux than using the conventional method. (See Figure 1 on flip page) It improves the accuracy dramatically and significantly.

Benefited Chroma’s unique optical and mechanical design, LED total radiant flux will be collected by a wide photo detector. Other optical features like dominant wavelength, peak wavelength, CCT, etc. will be detected by Chroma’s spectrometer. In addition, the 58173 offers a 6-inch wafer chuck and a packaged LED holder which users can collect variety of samples in one station. With a wide range of power source and meter, users can gather all of LED electrical data like forward voltage, leakage current, and reverse break voltage in one test step.


Comment via Facebook