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Expanding the Vision of Sensor Materials (1995) / Chapter Skim
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CHAPTER 7: SENSOR MATERIALS R&D OPPORTUNITIES
Pages 91-95

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From page 91...
... The near-term research opportunity involves extending this technology, using laser-fiber optics, 91 to measure changes in several key parameters dur ing cure such as resin temperature, resin viscosity, degree of cure, and amount of surface stress. The materials challenges result from applying this sensor system in a severe manufacturing environment.
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From page 92...
... For example, the back surface emission technique for measuring and controlling temperature in today's rapid thermal processing equipment can lead to temperature errors as much as 200 °C. LWIR sensors could provide superior temperature measurement capability.
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From page 93...
... This is particularly true for those processes that require atomic scale control during the growth process. Cost is not a fundamental physical limit, but it does impose significant practical constraints.
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From page 94...
... CHEMICAL SENSORS Most chemical sensor applications have been based on a broad base of measurement principles and chemical reactivity developed through research in different branches of chemistry. Chemical sensor research has also adapted many fundamental ideas, devices, and materials from other sciences and technologies, such as: inexpensive optical fibers from the communications industry, lithographic patterning technology widely used in the manufacture of modern microelectronics, advanced piezoelectric materials, and ultrasensitive light detection using charge coupled devices.
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From page 95...
... Miniaturization techniques of particular interest include methods relating to supporting electronics and protective packaging.
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Key Terms

  • sensor materials
  • chemical sensor
  • sensor technologies
  • process control
  • sensor applications

  • materials challenges
  • lwir sensor
  • chemically selective
  • materials development
  • situ process

  • rapid thermal
  • detector arrays
  • sample separation
  • target analyte
  • piezoelectric materials

  • thermal processing
  • research opportunity
  • incremental improvements
  • detector sensitivity
  • void content

  • issues arise
  • greatly supplement
  • conscious manufacturing
  • encourages continued
  • attractive alternatives

  • involves extending
  • heterostructures exceed
  • superior temperature
  • particularly stringent
  • optical fibers


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