Figure 1. If an incompatibility exists between the LED and VOCs, the LEDs discolor rapidly, often within hours of exposure. Light output levels drop and changes in the quality of the light’s color or chromaticity occur. Before and after photos show how output levels can deteriorate.
I agree, this was a very informative and easy to understand article that discusses an important topic in LED Assembly production. The importance of adhesive selection if overlooked can result in a very poor product despite an otherwise solid design, and understanding their interaction up front can save time and money in the long run.
"Careful adhesive selection during device design ensures that any incompatibilities between LEDs and adhesives never occur" sounds like excellent advice. Thanks for a great article.
Thanks for the educational posting. What we learn is that the whole process is quite complex and that it is vital to understand each of the materials involved, including their chemistry.
So it is clear that one must work with a reliable supplier to make the correct choices, and then do an adequate amount of testing to assure that the selected materials will work even with the range of production variations. Because we know that there does exist a bit of variability.
Parallax Inc. is known for developing the Basic Stamp microcontroller development board and educational accessory kits. In addition to developing a user-friendly educational platform to learn about 8-bit microcontrollers and software programming, it created a multicore 32-bit chip called the Propeller.
Researchers working with additive manufacturing have said multimaterial techniques will allow industry “to fabricate materials with combinations of density, strength, and thermal expansion that do not exist [yet].”
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