The development of non-volatile Eprom chips in the 1970s led to the need for UV eraser devices to reset memory cells prior to reprogramming. The ME series of erasers manufactured by Astrosyn's Lawtronics division were widely adopted by the industry. However, the emergence of electrically erasable flash memory led to dwindling Eprom usage and several manufacturers have ceased production of Eprom erasers. Now, new applications are leading to a revival in demand, driven not by Eproms, but by numerous other applications of UV irradiation in R&D and new technology.
UV erasers typically provide controlled exposure of samples to ultra-violet light at a wavelength of 253.7nm, categorised as UVC. In medical and microbiological research, analysis of genetic mutations and DNA employs UVC irradiation of bacteria and cell cultures. Photochemistry is another area where UV curing plays a crucial role in research into polymerisable compounds for making optoelectronic devices. Lifetime reliability studies use controlled UV dosing for accelerated ageing of plastics and adhesives. A refinement of this technique is now being applied to post fabrication treatment of rapid prototypes from 3D printing, a booming market.
In all these cases, Astrosyn ME5E UV erasers provide a robust tool for safe, reliable and consistent UVC irradiation at 4000uW/cm2. The benchtop ME5E operates from 230V at 50Hz, and safety features prevent UV leakage and minimise ozone separation.
To learn more about Astrosyn ME5E UV erasers please go to www.astrosyn.com.
Astrosyn International Technology Ltd
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UNITED KINGDOM
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