§3.1 LED封装流程简介2(国外英文资料).doc

§3.1 LED封装流程简介2(国外英文资料) This paper contributed by suyd618. PPT document may at the WAP end of the browsing experience poor. Suggest you select TXT, or download the source file to the machine view. The packaging process package Cheng Zhang third chapter LED. Professor Su Yongdao College of science University of Jinan 2011-2-14 College of science University of Jinan One The packaging process package Cheng Zhang third chapter LED. The 3.1.3 manual station, a solid crystal process over crystal crystal grain: the role of double polarity over and over: the role of crystal grain polarity over, in order to expand after crystal solid crystal and welding line, ensure correct polarity. The welding line to ensure correct polarity. Wheel pressure crystal anion fan preheating plate Double crystal Icon 2011-2-14 College of science University of Jinan Two The packaging process package Cheng Zhang third chapter LED. 1. double crystal operating standard power supply (1) double crystal machine plug) double crystal machine on 220V power supply, the table and open the anion fan; power supply desk anion fan and open; (2) the original single chip alignment anion fan tear, then the protective film attached to the core the original piece of Zhang Xin) on anion fan after tear film, the chips around, take a white film and protective film attached to the chip, the chip film around, take a white film and protective film attached to the chip, and then down and put in the preheated white Pan Zhengzhong, press the switch to pre heater. The motion of the cylinder; and put down the preheating plate middle switch preheater, the motion of the cylinder; (3) the thermostat temperature is 40~60 DEG C, the following page picture icon); the thermostat temperature is set below C page picture icon; (4) mechanism. After using the pressure wheel to roll back pressure crystal chip, the temperature close to the cylinder with pressure); bring pressure to roll back round crystal chip, the temperature close; (5) ha