Thin Film Measurement solution
Software, sensors, custom development
and integration
POLYMER FILMS MEASUREMENT
MProbe ...
Fig.2 Using a “thick film algorithm” to estimate the thickness of the films (standard
polymer material R.I.~ 1.6 is used)...
Fig. 4 Fit of thickness and R.I. gives better result.
Fig.5. R.I. spectrum determined from the measurement
83 Pine Hill ...
II. Measurement of a thick polymer films
Fig. 6 Reflectance spectrum of the a free-standing polymer film with polymer coa...
III. Measurement of polymer films of PET substrate (touch-screen application)
Fig. 8 Measurement of the PET sample with p...
Fig.9 Measurement of the PET sample with primer.
83 Pine Hill Rd. Southborough, MA 01772
Phone +1.617.388.6832 Fax. +1.5...
Fig, 10. Primer R.I spectrum determine from the measurement.
IV. Measurement polymers on flexible printed board (MProbe V...
Fig.12. Results of the spectrum analysis. 1.2μm polymer film (peak 1 ), 84 μm PET
(peak 2). Peak 3 is a total thickness P...
V. Conductive polymer layer on PET (MProbe Vis)
Fig. 13. Conductive polymer layer on PET substrate (Model vs. measurement...
Fig. 14 Optical constants of conductive polymer determined form the measurement.
VI. Measurement of biopolymer coating on...
Fig. 16. Optical constants of the polymer film determined form the measurement.
VII. Polymer film measurement - optical c...
Fig. 18. Optical constants of the polymer determined from the measurement.
83 Pine Hill Rd. Southborough, MA 01772
Phone...
VIII. Measurement of thin polymers (MProbe UVVis)
Fig, 19 Reflectance spectra of gold (uncoated), 1.3nm polymer/gold, 2.6...
of 13

Polymers: thikcness and n&k measurement

Polymers films have thousands of applications. In many cases, thickness of the coating or free standing polymer film need to be measured. MProbe system make these measurement easy and affordable in R&D and production applications. http://www.semiconsoft.com/wp/mprobe20desktop/
Published on: Mar 4, 2016
Published in: Technology      
Source: www.slideshare.net


Transcripts - Polymers: thikcness and n&k measurement

  • 1. Thin Film Measurement solution Software, sensors, custom development and integration POLYMER FILMS MEASUREMENT MProbe system is successfully used for measurement of a wide variety of polymer films. Depending on application requirements different configuration can be selected: 1. MProbe Vis system (wavelength 400-1000nm) is used for measurement of the polymer films from 15nm to 20μm. For films <500nm, typically, only thickness can be measured. For thicker films both thickness and refractive index can be measured. 2. MProbe UVVis (wavelength 200-1000nm) can be used when information about polymer properties is important. Most of polymers have absorptions edge in the UV, so n,k can be measured along with the thickness. Also very thin polymer films (monolayer) can be measured. 3. MProbeVisHR or NIR is used for measurement of thick polymer films >20μm or films than are not clear (colored) or have scattering. I. Thickness and refractive index (R.I.) measurement Fig. 1 Reflectance spectrum of the polymer film on Si 83 Pine Hill Rd. Southborough, MA 01772 Phone +1.617.388.6832 Fax. +1.508.858.5473 email: info@semiconsoft.com http://www.semiconsoft.com
  • 2. Fig.2 Using a “thick film algorithm” to estimate the thickness of the films (standard polymer material R.I.~ 1.6 is used) Fig. 3 Using direct fit shows that R.I is not correct – it should be adjusted to have a good fit between measured data and the model. 83 Pine Hill Rd. Southborough, MA 01772 Phone +1.617.388.6832 Fax. +1.508.858.5473 email: info@semiconsoft.com http://www.semiconsoft.com
  • 3. Fig. 4 Fit of thickness and R.I. gives better result. Fig.5. R.I. spectrum determined from the measurement 83 Pine Hill Rd. Southborough, MA 01772 Phone +1.617.388.6832 Fax. +1.508.858.5473 email: info@semiconsoft.com http://www.semiconsoft.com
  • 4. II. Measurement of a thick polymer films Fig. 6 Reflectance spectrum of the a free-standing polymer film with polymer coating Fig.7. Thicknesses of both layers can be easily determined using thick-film algorithm as 21.8 um and 2.1um (thicknesses are indicated by position of the peaks) 83 Pine Hill Rd. Southborough, MA 01772 Phone +1.617.388.6832 Fax. +1.508.858.5473 email: info@semiconsoft.com http://www.semiconsoft.com
  • 5. III. Measurement of polymer films of PET substrate (touch-screen application) Fig. 8 Measurement of the PET sample with primer and main polymer layer (35nm primer, 85nm additional polymer layer). Model to measured data fit. The “noise” in spectrum due to the effect of the thin PET substrate. PET n,k were determined from measurement of the blank PET sample. 83 Pine Hill Rd. Southborough, MA 01772 Phone +1.617.388.6832 Fax. +1.508.858.5473 email: info@semiconsoft.com http://www.semiconsoft.com
  • 6. Fig.9 Measurement of the PET sample with primer. 83 Pine Hill Rd. Southborough, MA 01772 Phone +1.617.388.6832 Fax. +1.508.858.5473 email: info@semiconsoft.com http://www.semiconsoft.com
  • 7. Fig, 10. Primer R.I spectrum determine from the measurement. IV. Measurement polymers on flexible printed board (MProbe VisHR) Fig. 11 Reflectance spectrum at 2 points on the printed board showing that at least 2 films are present 83 Pine Hill Rd. Southborough, MA 01772 Phone +1.617.388.6832 Fax. +1.508.858.5473 email: info@semiconsoft.com http://www.semiconsoft.com
  • 8. Fig.12. Results of the spectrum analysis. 1.2μm polymer film (peak 1 ), 84 μm PET (peak 2). Peak 3 is a total thickness PET+polymer (85.2 μm) 83 Pine Hill Rd. Southborough, MA 01772 Phone +1.617.388.6832 Fax. +1.508.858.5473 email: info@semiconsoft.com http://www.semiconsoft.com
  • 9. V. Conductive polymer layer on PET (MProbe Vis) Fig. 13. Conductive polymer layer on PET substrate (Model vs. measurement). Thickness: 853nm 83 Pine Hill Rd. Southborough, MA 01772 Phone +1.617.388.6832 Fax. +1.508.858.5473 email: info@semiconsoft.com http://www.semiconsoft.com
  • 10. Fig. 14 Optical constants of conductive polymer determined form the measurement. VI. Measurement of biopolymer coating on implant stent. Fig. 15 Biopolymer film on Ti stent. Model vs. measurement. Film thickness: 97nm 83 Pine Hill Rd. Southborough, MA 01772 Phone +1.617.388.6832 Fax. +1.508.858.5473 email: info@semiconsoft.com http://www.semiconsoft.com
  • 11. Fig. 16. Optical constants of the polymer film determined form the measurement. VII. Polymer film measurement - optical constants analysis (MProbe UVVis) Fig. 17. Measurement of polymer with squaraine dye deposited on glass. Model vs. measured data. Thickness 41nm 83 Pine Hill Rd. Southborough, MA 01772 Phone +1.617.388.6832 Fax. +1.508.858.5473 email: info@semiconsoft.com http://www.semiconsoft.com
  • 12. Fig. 18. Optical constants of the polymer determined from the measurement. 83 Pine Hill Rd. Southborough, MA 01772 Phone +1.617.388.6832 Fax. +1.508.858.5473 email: info@semiconsoft.com http://www.semiconsoft.com
  • 13. VIII. Measurement of thin polymers (MProbe UVVis) Fig, 19 Reflectance spectra of gold (uncoated), 1.3nm polymer/gold, 2.6nm polymer/ gold. Polymer monolayer can be easily distinguished and measured. Fig. 20. Measurement of the polymer monolayer (1.3nm). Model vs. measurement. 83 Pine Hill Rd. Southborough, MA 01772 Phone +1.617.388.6832 Fax. +1.508.858.5473 email: info@semiconsoft.com http://www.semiconsoft.com

Related Documents