In light of ATS’ new release of the ethermVIEW, a high resolution liquid crystal thermography system, we sat down with Dr. Tavassoli, Chief Technologist at ATS to ask a few questions about liquid crystal thermography. Below is the Q & A session on commons questions that are asked about liquid crystal thermography.<\/p>\n
Q: What are Liquid Crystals? How do they work?<\/strong><\/p>\n A: Liquid Crystals reflect incident light at the visible wave length based on the temperature of the surface to which they are applied.<\/p>\n Q: Does the chip or the board get destroyed as the result of the ink\/Liquid Crystal (LC) application?<\/strong><\/p>\n A: No, ink and LC can be washed off with de-ionized water<\/em><\/p>\n Q: Can you reuse the LC treated surface?<\/strong><\/p>\n A: Yes, as long as the surface is kept in a clean environment.<\/em><\/p>\n Q: How often do I need to calibrate?<\/strong><\/p>\n A: Typically every time the LC is applied to a new surface, which is a good measurement practice.<\/em><\/p>\n Q: Are Liquid Crystals harmful?<\/strong><\/p>\n A: No, but we do not recommend consuming them!<\/em><\/p>\n Q: Can you use LC’s for board level measurement?<\/strong><\/p>\n A: Yes, LC’s can be used for any surface that can be treated with LC’s and trackable lighting.<\/em><\/p>\n Q: Can you mix different Liquid Crystal compounds?<\/strong><\/p>\n A: Yes, however, it will be difficult to determine the temperature because the same colors, reflecting a temperature, will appear repeatedly as the surface is heated.<\/em><\/p>\n Watch liquid crystals in action! Check out the video demo<\/p>\n