Yasda's YMC430 Micro Center is uniquely capable of precisely processing molds for Light Emitting Diodes (LED). LED is the latest trend in backlighting technology for Liquid Crystal Displays (LCD). It is a semiconductor-based lighting solution that overcomes the limitations of commonly employed Cold Cathode Fluorescent Lamps (CCFL). While CCFL require a high voltage power supply and generally are the highest power-consuming component in large format display, LED backlight units deliver higher brightness than CCFL and better power efficiency.

Ideal for LED mold applications, the YMC430 features rigid construction and spindle stiffness. These qualities enable the micro center to achieve higher levels of surface roughness and a longer tool life than most micro (Nano) centers with similar specifications. Focusing on high speed and high accuracy motion control in micro machining, the YMC430's table (Y-axis) is assembled on the X-axis. The lighter table unit is controlled precisely by linear motors and newly developed linear guide ways with high accuracy motion control. A solid H-shaped column unit firmly supports the Z-axis, and a unique cradle type design headstock holds the spindle unit without thermal distortion. The YMC430 performs positioning accuracy by ISO230-2 0.356 µm for X-axis, 0.508 µm for Y-axis and 0.316 µm for Z-axis.

YMC430 example - LED mold sample cavity core: Cavity bottom surface roughness of Ra 0.042 micrometers (42 nanometers); Core sidewall surface roughness of Ra 0.026 micrometer.

Specifications of the YMC430 are X,Y,Z travel: 400 x 300 x 250mm, table size: 450 x 350mm, table loading capacity: 100kg, spindle speed: 40,000rpm, spindle nose: HSK-E32, ATC: 32 tools. Mass of machine: 8 tons.

Dyna Vision PRO for Accurate Micro Cutting Tools Measuring

One of the most critical and important issues of micro machining is the accurate measurement of small tools, especially those smaller than 0.1mm in diameter. This is due to the fact that a laser measuring system has limitations when measuring small tools, and plunger type measuring system can break small tools.

With Dyna Vision PRO, measuring accuracy and function are dramatically improved by capturing the image with a high magnification lens and high-speed shutter, as well as high precision image processing. The 600X magnification lens and high pixel CCD camera visualizes the tool into a blown-up image. Utilizing this image, the tool is detected by 250,000 sensors at 0.7µm/pixel. Furthermore, the high-speed shutter can capture the rotating tool as a still image at up to 1,500m/min. surface speed.