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The boom of silicon wafers in the photovoltaic industry

The boom of silicon wafers in the photovoltaic industry Key Takeaways Carbon-neutrality goals worldwide have made photovoltaics the fastest-growing source of demand for silicon wafers. PV wafer economics are driven by kerf loss and throughput, which is the main reason diamond wire replaced slurry saws across the industry. Larger wafer formats and thinner wafers are the PV industry's structural cost-reduction path, and both raise the bar for cutting precision. Under the background of the carbon neutralization goal and the accelerated application of global clean...

July 22, 2022DefaultRead more...
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2022 Semiconductor Wafer Industry Overview

2022 Semiconductor Wafer Industry Overview Key Takeaways Semiconductor silicon wafers are the carrier substrate for chip manufacturing, and the wafer industry is highly concentrated and technology-intensive. Industry development is driven by larger wafer diameters, tighter flatness specs and growing demand from logic, memory and power devices. Semiconductor silicon wafer is the carrier for manufacturing chips, also known as silicon wafer because the raw material is silicon. After planning and management-free silicon refining, purification, monocrystalline silicon production, wafer forming and other processes, it can enter...

July 19, 2022DefaultRead more...

Diamond Wire Silicon Wafer Cutting Equipment Trends

1) High line speed and high production capacity support the reduction of single GW investment According to the theory of fracture mechanics and the properties of silicon materials, when the maximum cutting depth of diamond abrasive grains is greater than the critical cutting depth of silicon materials, the transition from plastic cutting to brittle fracture cutting will occur. Therefore, within the allowable range of the diamond wire load, appropriately increasing the steel wire speed in the multi-wire cutting process is beneficial...

June 16, 2022DefaultRead more...

Dimensional change of photovoltaic silicon wafers

Key Takeaways Photovoltaic silicon wafer sizes evolved from semiconductor wafer formats, with PV historically lagging semiconductors in dimension standards. Wafer dimensions keep growing (from 156 mm to 182/210 mm classes) because larger wafers cut module cost per watt. Larger and thinner wafers raise the precision bar for slicing equipment and diamond wire. The size of photovoltaic silicon wafers is derived from semiconductor silicon wafers. In terms of development , photovoltaics lag behind semiconductors by 1 to 2 generations. Over the years, the size of...

June 2, 2022DefaultRead more...

Silicon Ingot Processing in Semiconductor Industry

Key Takeaways In semiconductor wafer preparation, single-crystal silicon ingots are processed into bare wafers with high surface accuracy for lithography. The ingot processing flow includes cropping, grinding, slicing, chamfering, lapping and polishing, with slicing quality setting downstream workload. In the single-crystal silicon wafer preparation stage, the silicon ingots need to be processed into raw silicon wafers or barewa-fers with high surface accuracy and surface quality to prepare for planarization for lithography and other processes in the first half of the IC process. Ultra-smooth...

May 27, 2022DefaultRead more...