Absorption Coefficient Lab

Conduct Research

• MICRO: Optimizing polymers to increase pellicle lifetime and transmission for 157-nm lithography
  . Such thicknesses make the film highly sensitive to optical absorption and give them a high extinction coefficient because the path of light through the material is long. At the same time, these pellicle membranes exhibit roughness and thickness nonuniformity and are quite susceptible to the effects of finite...
• Next breakthrough material for military use could be carbon foam
  , makes it an option for lightweight mirrors used in space-based telescopes and high-power lasers. The low thermal coefficient of thermal expansion of carbon foam makes it an economical alternative to conventional superalloys used in tooling for molding aerospace carbon-fiber-reinforced thermoset...
• MICRO:February 1998:Product Technology News
  absorption and possible contamination of downstream processes. All wetted surfaces are made of PFA, and carbon rods encapsulated in the material ensure dimensional stability for precise automated handling. The carrier is available in 26- or 52-wafer capacities. The 52-capacity carrier weighs 1.54 kg...
• MICRO: Golden (February 2001)
  dissipation can cause localized metal-line heating, which eventually leads to device failure. Thermally induced stresses within the low-k film may lead to delamination because of mismatches between the film's coefficient of thermal expansion (CTE) and the substrate CTE. For example, silicon dioxide's CTE...
• Acoustic Myths and Realities: Painted Foam
  with ASTM: C423-77 test procedure. Precision at ninety percent confidence limits for the absorption coefficients was ± 0.03 at 125 Hz, less than ± 0.015 at 250,500, and 1000 Hz, and less than ± 0.025 at 2000 and 4000 Hz. *Noise Reduction Coefficient (NRC) values are reported per ASTM C423-77...
• Local Temperature Rises Caused by the Use of Commercial Mobile Phones
  are sensitive to IR radiation with wavelengths. from 7.5 to 13 µm. In this wavelength band, molecular absorption processes from water or carbon dioxide are. not distinctive, and the transmission coefficient of normal atmospheric air is high. For wideband principles the. Stefan-Boltzmann law governs...
• Determination of Volume Percent Retained Austenite by X-Ray Diffraction (.pdf)
  is. designed to minimize the effects of preferred. Where I is the integrated intensity, c is the. orientation during collection of the diffraction. volume fraction of each respective phase,. peak integrated intensities. and µ is the linear absorption coefficient for. the steel. K is a constant...
• PEEK vs. Metal: Why Plastic is Better (.pdf)
  . resistance. Focus On: Medical Applications. PEEK can be used in the medical field as a rigid tube in minimally invasive surgery, such as stent. delivery. PEEK is also useful in medical applications because of its low coefficient of friction,. which does not allow heat to build up, reducing downtime...

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