Non-destructive thickness measurement of dichromated gelatin films deposited on glass plates

2006 ◽  
Vol 38 (7) ◽  
pp. 552-557 ◽  
Author(s):  
R.P. Shukla ◽  
D.V. Udupa ◽  
N.C. Das ◽  
Murty V. Mantravadi
Keyword(s):  
Thickness Measurement ◽  
Gelatin Films ◽  
Dichromated Gelatin ◽  
Glass Plates ◽  
Non Destructive

Application of EDS Technique for OSP Film Thickness Measurement

2006 ◽  
Author(s):  
Prong Kongsubto ◽  
Sirarat Kongwudthiti
Keyword(s):  
Thin Film ◽  
Quantitative Analysis ◽  
Joint Strength ◽  
Critical Factor ◽  
Thickness Measurement ◽  
Ic Manufacturing ◽  
And Control ◽  
Film Thickness Measurement ◽  
Non Destructive

Abstract Organic solderability preservatives (OSPs) pad is one of the pad finishing technologies where Cu pad is coated with a thin film of an organic material to protect Cu from oxidation during storage and many processes in IC manufacturing. Thickness of OSP film is a critical factor that we have to consider and control in order to achieve desirable joint strength. Until now, no non-destructive technique has been proposed to measure OSP thickness on substrate. This paper reports about the development of EDS technique for estimating OSP thickness, starting with determination of the EDS parameter followed by establishing the correlation between C/Cu ratio and OSP thickness and, finally, evaluating the accuracy of the EDS technique for OSP thickness measurement. EDS quantitative analysis was proved that it can be utilized for OSP thickness estimation.

Diffraction gratings in dry developed dichromated gelatin films

1998 ◽  
Vol 317 (1-2) ◽  
pp. 343-346 ◽  
Author(s):  
J.A Quintana ◽  
P.G Boj ◽  
J Crespo ◽  
J.A Vallés-Abarca ◽  
J.M Villalvilla
Keyword(s):  
Diffraction Gratings ◽  
Gelatin Films ◽  
Dichromated Gelatin

scholarly journals Large thickness measurement of glass plates with a spectrally resolved interferometer using variable signal positions

OSA Continuum ◽  
2021 ◽  
Author(s):  
Kaining Zhang ◽  
Samuel Choi ◽  
Osami Sasaki ◽  
Songjie Luo ◽  
Takamasa Suzuki ◽  
...  
Keyword(s):  
Thickness Measurement ◽  
Large Thickness ◽  
Glass Plates ◽  
Spectrally Resolved

Spectropolarimetric investigation of the photoinduced dichroism and birefringence in malachite green/dichromated gelatin films

2009 ◽  
Vol 11 (6) ◽  
pp. 065403
Author(s):  
Bistra Markova ◽  
Boyan Hristov ◽  
Todor Todorov ◽  
Ludmila Nikolova ◽  
Georgi Stoilov
Keyword(s):  
Malachite Green ◽  
Gelatin Films ◽  
Dichromated Gelatin

scholarly journals On the Thickness Quantification of Composite Materials by Using Lock-In Thermography

Materials ◽  
2019 ◽  
Vol 12 (7) ◽  
pp. 1185
Author(s):  
Davide Palumbo
Keyword(s):  
Composite Materials ◽  
Measurement Accuracy ◽  
Plastic Material ◽  
Thickness Measurement ◽  
Glass Fiber Reinforced Plastic ◽  
Glass Fiber Reinforced ◽  
Reinforced Plastic ◽  
Test Parameters ◽  
Lock In ◽  
Non Destructive

Many structural components made of composite materials need an accurate thickness control during fabrication and/or maintenance. In this regard, various non-destructive techniques can be used for the online measuring of thickness of large components such as wings and fuselage in the aerospace industry. In this work, the capabilities of lock-in thermography technique in thickness measurement of glass fiber reinforced plastic material were investigated and a correct procedure has been proposed to ensure the best measurement accuracy. An analytical approach and several tests were carried out on a sample specimen with the aim to study the main test parameters. Finally, the limits of technique have been discussed.

The Technology of Ultrasound for Measuring the Thickness of the Pipe Lining

2013 ◽  
Vol 457-458 ◽  
pp. 1176-1180
Author(s):  
Xin Wang ◽  
Guo Xiang Li ◽  
Xuan Zhou
Keyword(s):  
Pipe Wall ◽  
Thickness Measurement ◽  
Dynamic Changes ◽  
Wall Lining ◽  
Ultrasonic Technology ◽  
Ultrasonic Thickness Measurement ◽  
Ultrasonic Propagation ◽  
Non Destructive ◽  
Ultrasonic Thickness ◽  
Technology Solution

For the issue of the industrial pipe wall lining the thickness of dynamic changes difficult to be measured, based on the principle of ultrasonic thickness measurement and ultrasonic propagation in solids and based on existing research and theory of ultrasonic, this topic has designed a ultrasonic technology solution for measuring the thickness of the pipe wall lining. This technology achieves online measurement and non-destructive thickness measurement. Through processing and analysis of the experimental results, it demonstrates the feasibility and reliability of the technology. This technology has great significance for improving the security and stability of the pipeline.

Real-time holography with undeveloped dichromated gelatin films

1984 ◽  
Vol 23 (12) ◽  
pp. 1989 ◽  
Author(s):  
Sergio Calixto ◽  
R. A. Lessard
Keyword(s):  
Real Time ◽  
Gelatin Films ◽  
Dichromated Gelatin
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