Pradesh silicon wafer plan cost is expected to drop 75%

Bill Watkins, chief executive of Bridgelux, stated that in order to cooperate with the computer-semiconductor industry to save costs, LED companies must start producing LEDs with the same equipment.

Global home LED bulbs have been on the market since last year, but prices are much higher than conventional bulbs.

Currently, 40-watt and 60-watt LED bulbs are sold at Home Depot or Lowes in the United States, and prices range from 18 to 40 US dollars. Although LED bulbs are very durable, some have an estimated lifetime of 25 years, and are more efficient than traditional bulbs, most manufacturers still expect prices to drop steadily.

Now LED has a revolutionary breakthrough in quantity and quality. Now the main problem is how to reduce the cost.

Watkins said that Preh will consider starting to make LEDs on silicon chips, which is expected to reduce manufacturing costs by 75% and make more efficient lighting equipment.

For this purpose, Preh will launch a three-year plan, which will be followed by the listing of light bulbs produced by other companies.

Recently, Gao Teng, general manager of IMEC China, a world-renowned microelectronics research center, revealed to Senior Engineering LED reporter that they are currently working together with giants of the global LED industry chain to develop a project to grow gallium nitride on silicon. IMEC has succeeded in growing gallium nitride on 6-inch and 8-inch silicon. However, the quality of 6-inch is better, and the 8-inch film quality still needs to be improved. There is no crack, but its stress and defects cannot meet the requirements for LED devices. The ultimate goal of this project is to use a CMOS-compatible process on a large (8-inch) silicon substrate to grow a sufficiently good GaN film and make efficient LED devices on it.

Gao Teng thinks: "At present, semiconductor technology is the finest technology that can be achieved in the history of mankind, and it can make you incredibly low cost. From the previous 6 inches to 8 inches, 8 inches to 12 inches and Looking at the development of the entire semiconductor industry in recent decades, this cost reduction will not be a simple small-scale adjustment, but a substantial decline, and it will continue to decline rapidly over time.

Puri Optoelectronics currently produces LEDs on 2-inch and 4-inch wafers. If it is contracted with semiconductor companies in the future, it will not only reduce costs but also increase production. Watkins said that after cooperating with the semiconductor company, it can make full use of the currently idle 8-inch machine production capacity.

According to Watkins, Puri Optoelectronics has now been able to produce 30 lumens per watt of finished products based on silicon wafers.

Jason Posselt, deputy general manager of the company's marketing department, said that there are still many challenges to face in the production of LED technology on silicon chips, but they are confident that they will be completed, which will inevitably lead to lower product prices.

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