Theoretical Foundation of Fringe Analysis Techniques

2018 ◽  
pp. 33-46
Keyword(s):  
Theoretical Foundation ◽  
Fringe Analysis ◽  
Analysis Techniques

Advanced Fringe Analysis Techniques in Circuit Edit

2006 ◽  
Author(s):  
R.K. Jain ◽  
T. Malik ◽  
T.R. Lundquist ◽  
C.-C. Tsao ◽  
W.J. Walecki
Keyword(s):  
Imaging System ◽  
Success Rates ◽  
Endpoint Detection ◽  
Fringe Analysis ◽  
Analysis Techniques ◽  
Aspect Ratios ◽  
Slope Correction ◽  
Trench Area ◽  
And Control ◽  
Thickness Measurements

Abstract Novel Fabry Perot [1] fringe analysis techniques for monitoring the etching process with a coaxial photon-ion column [2] in the Credence OptiFIB are reported. Presently the primary application of these techniques in circuit edit is in trenching either from the front side or from the backside of a device. Optical fringes are observed in reflection geometry through the imaging system when the trench floor is thin and semi-transparent. The observed fringes result from optical interference in the etalon formed between the trench floor (Si in the case of backside trenching) and the circuitry layer beyond the trench floor. In-situ real-time thickness measurements and slope correction techniques are proposed that improve endpoint detection and control planarity of the trench floor. For successful through silicon edits, reliable endpoint detection and co-planarity of a local trench is important. Reliable endpoint detection prevents milling through bulk silicon and damaging active circuitry. Uneven trench floor thickness results in premature endpoint detection with sufficient thickness remaining in only part of the trench area. Good co-planarity of the trench floor also minimizes variability in the aspect ratios of the edit holes, hence increasing success rates in circuit edit.

scholarly journals Severe violations of independence in response inhibition tasks

2021 ◽  
Vol 7 (12) ◽  
pp. eabf4355
Author(s):  
Patrick G. Bissett ◽  
Henry M. Jones ◽  
Russell A. Poldrack ◽  
Gordon D. Logan
Keyword(s):  
Response Inhibition ◽  
Theoretical Foundation ◽  
Reaction Times ◽  
Stop Signal ◽  
Experimental Paradigm ◽  
Signal Delay ◽  
Independence Assumption ◽  
Analysis Techniques ◽  
Wide Range ◽  
Saccadic Responses

The stop-signal paradigm, a primary experimental paradigm for understanding cognitive control and response inhibition, rests upon the theoretical foundation of race models, which assume that a go process races independently against a stop process that occurs after a stop-signal delay (SSD). We show that severe violations of this independence assumption at short SSDs occur systematically across a wide range of conditions, including fast and slow reaction times, auditory and visual stop signals, manual and saccadic responses, and especially in selective stopping. We also reanalyze existing data and show that conclusions can change when short SSDs are excluded. Last, we suggest experimental and analysis techniques to address this violation, and propose adjustments to extant models to accommodate this finding.

Dynamic investigations of opto-mechanical properties of iPP/TiO2 nanocomposites fibres using fringe analysis techniques

Optik ◽  
2020 ◽  
Vol 212 ◽  
pp. 164683
Author(s):  
T.Z.N. Sokkar ◽  
M.A. El-Bakary ◽  
M.I. Raslan ◽  
N.A. AL-kalali ◽  
E.Z. Omar
Keyword(s):  
Mechanical Properties ◽  
Fringe Analysis ◽  
Analysis Techniques

Severe violations of independence in response inhibition tasks

2019 ◽  
Author(s):  
Patrick Bissett ◽  
Henry Morrow Jones ◽  
Russell Poldrack ◽  
Gordon D. Logan
Keyword(s):  
Response Inhibition ◽  
Theoretical Foundation ◽  
Stop Signal ◽  
Experimental Paradigm ◽  
Signal Delay ◽  
Independence Assumption ◽  
Analysis Techniques ◽  
Wide Range ◽  
Saccadic Responses ◽  
Existing Data

The stop-signal paradigm, a primary experimental paradigm for understanding cognitive control and response inhibition, rests upon the theoretical foundation of race models, which assume that a go process races independently against a stop process that occurs after a stop-signal delay (SSD). We show that severe violations of this independence assumption at short SSDs occur systematically across a wide range of conditions, including fast and slow RTs, auditory and visual stop signals, manual and saccadic responses, and especially in selective stopping. We also reanalyze existing data and show that conclusions can change when short SSDs are excluded. Finally, we suggest experimental and analysis techniques to address this violation, and propose adjustments to extant models to accommodate this finding.

High-precision 2D angle measurement using fringe analysis techniques

2001 ◽  
Author(s):  
Zongtao Ge ◽  
Takayuki Saito ◽  
Shinichi Matsuda ◽  
Mitsuo Takeda
Keyword(s):  
High Precision ◽  
Angle Measurement ◽  
Fringe Analysis ◽  
Analysis Techniques

scholarly journals STRUKTUR DIDONG ALO PADA MASYARAKAT GAYO DI KECAMATAN BLANGKEJEREN KABUPATEN GAYO LUES

2016 ◽  
Vol 5 (2) ◽  
Author(s):  
Pilar Kuncoro
Keyword(s):  
Data Analysis ◽  
Indigenous People ◽  
Structure Data ◽  
Theoretical Foundation ◽  
Qualitative Description ◽  
Analysis Techniques ◽  
External Structure ◽  
Unique Shape

This study discusses, Structure Didong A lo community in District Blangkejeren Gayo Gayo Lues District. Theoretical foundation used in this study are: the theory of Levi-Strauss as seen from the outer structure and inner structure. Data analysis techniques, used a qualitative description. The population in this study is the Gayo people in Desa Cempa Blangkejeren District of Gayo Lues district, Artist, dean or  the Indigenous People, who know the neighbor Dancers dance tradition Gayo especially Didong A lo. Based on the results of research conducted then, Didong A lo is a dance that tells the story of a white elephant sleeping in the area Gumpang. Didong A lo has a very unique shape on the movement of vague prop that movement would seize a bird chicks, sipped movement,and the movement kelileng accompanied by the chanting of poetry bebentuk vocals. A lo seen Didong structure based on the external structure and the structures within. The external structure into three parts, namely the implementation of the arrangement, visually and in audio. While the structure of the views of the whole contained within the outer structure. In the structure of the Didong A lo there are 3 stages: appetizer, contents and cover.

An example of spectrum imaging used for comparison of EELS quantitative analysis techniques on Al-Li

1991 ◽  
Vol 49 ◽  
pp. 726-727
Author(s):  
John A. Hunt
Keyword(s):  
Quantitative Analysis ◽  
Large Data ◽  
Difference Spectrum ◽  
Large Data Sets ◽  
Foil Thickness ◽  
Data Sets ◽  
Analysis Techniques ◽  
Spectrum Imaging ◽  
Normal Spectrum ◽  
Electron Energy Loss

Spectrum-imaging is a useful technique for comparing different processing methods on very large data sets which are identical for each method. This paper is concerned with comparing methods of electron energy-loss spectroscopy (EELS) quantitative analysis on the Al-Li system. The spectrum-image analyzed here was obtained from an Al-10at%Li foil aged to produce δ' precipitates that can span the foil thickness. Two 1024 channel EELS spectra offset in energy by 1 eV were recorded and stored at each pixel in the 80x80 spectrum-image (25 Mbytes). An energy range of 39-89eV (20 channels/eV) are represented. During processing the spectra are either subtracted to create an artifact corrected difference spectrum, or the energy offset is numerically removed and the spectra are added to create a normal spectrum. The spectrum-images are processed into 2D floating-point images using methods and software described in [1].

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