Lumen / efficiency / price has broken LED to accelerate the replacement of traditional light sources

High voltage LED technology continues to evolve, 800 lumens of LED bulb has come out, plus the luminous efficiency is rising, and the flip chip technology blessing, regardless of number of lumens, LED light source luminous efficiency, cost and volume are more competitive, is expected to accelerate to replace the traditional light source, to further expand market penetration.

All standard incandescent disabled and FMCT will be launched since 2011, Toshiba (Toshiba), PHILPS (Philips) and light emitting diode (LED) lighting manufacturers exhibition kick-off lamp deployment, especially in the high voltage (HV) LED Diego technology progress, LED chip factory has successfully developed 800 lumens bulb lamp, and is actively developing more than 1000 lumens bulb, in order to speed up the attack after a 60 watt incandescent bulb layout.

Replace 60 watt incandescent bulb LED chip manufacturer with 800 lumens in place

EPISTAR R & D Center Research Associate Xiangjun Hong group nitride is expected to 2015, the output value of more than 50% of the global lighting will be exclusive to the LED, as the battleground business opportunities.

With the development of disabled and cut-off incandescent lamp time gradually approaching, Toshiba, PHILPS, LEDON, OLED (GE) singular Lighting LED lighting manufacturers had to strengthen the layout wildly beating gongs and drums's product line, in addition to "long life, luminous efficiency and price advantage, Jingyuan photoelectric research center research associate group Hong said Xiangjun nitride in view of the cost, is the key to the popularity of LED lighting, 800 lumens bulb, up to 1000 lumens per dollar package, high voltage LED and increase LED warm white light LED will represent the general trend, therefore become the key to the work of taking LED chip.

Recently, PHILPS, Toshiba took the lead in the industry to develop 800 lumens of LED bulb, to replace a 60 watt incandescent bulb, the goal is to reach the price of $40 in 2011, to replace a 40 watt incandescent bulb $20, to reach $8 in 2015. Hong Xiangjun analysis, in order to reduce the optical loss, the future is bound to LED lighting manufacturers beyond 1000 lumens forward.

In addition, Hong Xiangjun stressed that the cold white and warm white LED observation of luminous efficiency, price evolution, in order to speed up the LED to replace the incandescent lights in the city accounted for $1000 each, packaging technology will be irresistible lumens, once the smooth production, cold white LED will reach 1 lumens per thousand dollars, for each LED chip plant in 2015 target. Expected to 2012, 500 U.S. dollars per lumen LED smooth mass production, will help expand the LED lighting market penetration of up to 30%.

Another concern is the high voltage of LED, compared with the current scheme, high voltage scheme can reduce the decrease of luminous efficiency, and adopt more efficient drive, AC scheme does not appear fault defects plus, and low manufacturing cost and easy production, will become the most easy to achieve high performance LED lighting solutions. Xiangjun Hong pointed out that the high voltage LED mainly aimed at indoor lighting, will facilitate the design of simplified LED and power converter.

At present, many LED chip manufacturers are trying to increase the red LED by AIGalnP in the realization of high CRI, Hong Xiangjun, compared with blue LED phosphor mixed warm white color scheme 82%, warm white light LED mixed color can be as high as 90%, so the market will be the main stream. Today, the red LED luminous efficiency has reached 180 lumens per watt, blue LED has reached 162 lumens per watt.

On the other hand, compared with the traditional LED packaging technology, flip chip (Flip Chip) (also known as inverted crystal) package technology has high yield rate, thermal effect, strong light and thin characteristics increased, thus gradually in LED packaging fields, but the initial investment, output per hour (UPH) is far better than traditional process, will overcome the LED packaging manufacturers to development challenges.

Flip chip packaging exposed investment cost /UPH test multiplier

Xu Xichuan, deputy director of research and development of three billion yuan, said the prospects for the future of the coated packaging, LED packaging industry to attract competition. Everlight three R & D department deputy director Xu Xichuan said, flip chip technology has good heat dissipation, light area increases, miniaturization and high yield advantage, thus gradually gain market favor, but because of the initial investment amount is considerable, and less than the traditional UPH (Die+Wire Bond) to the crystal process, so that the cushion of high technology enter the threshold, but also become a technical problem in LED packaging business actively overcome.

Although the traditional binding process has a low initial investment amount, high production capacity and can be used in the production of both the advantages of equipment, but there is not easy to heat, small packaging yield is difficult to upgrade, high temperature bonding and other defects. Different from the traditional LED packaging solid crystal way, the flip chip packaging system is directly flip chip on the substrate of the gold bump (Bump), and then by the external energy to achieve the purpose of solid crystal. This technique helps to shorten the LED process in high temperature baking time, material to reduce the thermal stress, and simplified process is easy to yield control, in addition, due to the heat generated by the chip through the gold bump conduction to the substrate, the thermal effect is good, and the removal of the wafer electrode shielding a smooth product, resulting in a light increase. The packaging process requires material quality, namely, the substrate coating, wafer electrodes, as well as the design of ceramic nozzle, wire material / wire and process parameters.

The energy-saving lamp luminous efficiency, energy saving, environmental protection and life, volume is less than LED, plus the British Ministry of Health issued a warning of energy-saving lamps, energy-saving lamps will lead to serious danger of breaking the release of mercury, and cause environmental pollution, so although the LED price competitiveness is not the enemy of energy-saving lamps, after the potential is still great potential. In order to speed up the popularization of LED, the encapsulation technology will be expected to emerge in the market