Arcing and sparking
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I would appreciate it if some experts could explain what is meant by arc formation and sparking during the silicon crystal production process, and how these phenomena occur Thank you!
Yeah, we have this problem too. From my experience, arcing and sparking are related to dirt on the PTFE sleeve; it’s essential to keep the chassis clean before and after installing it in the furnace! Please ask experts to share their opinions!
Arcing refers to the discharge phenomenon that occurs when voltage breaks down the air; it is important to keep the chassis and electrodes clean, and there should be no sharp objects in the vicinity that could conduct electricity
If it refers to single crystals! I have photos of the heater after arc drawing, but unfortunately I don’t have the permission to upload them! It lights up too quickly; there’s no way to take a photo! Arcing occurs because the heater or other graphite components have not been cleaned properly, while sparking is caused by the heater’s electrode pins not being installed correctly or not being cleaned thoroughly! This post was last edited by LHY8771 on 2009-3-23 14:49.]
It is generally related to excessive moisture near the chassis, accumulation of dirt, and overly long silicon rods. When the furnace is started, the high-temperature electrodes ionize the atmosphere around them.
Generally, high currents or high voltages tend to cause arcing
Could someone tell me the specific location where arcing occurs inside the reduction furnace, as well as the areas where it tends to happen? Thank you
The issue of foxing occurs due to impurities in the PTFE coating on the copper electrode rod, which lead to high-voltage breakdown; this is what my master told me. My master is definitely an expert in the polycrystalline industry! Someone with an annual salary of 600,000!