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What is the thickness of the substrate used?

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The thickness of the substrate used varies across different studies. In the research on the reaction between tin and copper, copper substrates of two thicknesses, 0.3 mm and 3 mm, were immersed in liquid tin for investigation . Another study focused on branch-line couplers with substrate thicknesses of 1 mm, 1.5 mm, and 2 mm, showing how thickness affects device characteristics . Additionally, a study on a substrate for transfer mentioned a total thickness ranging from 45 μm to 500 μm, with a specific thickness ratio of the thermoplastic resin layer to the glass film layer . Furthermore, a metrology system for measuring layer thickness on a substrate involved capturing color images for analysis . Lastly, in the context of laser scribing on glass substrates, the thickness was reduced to 1.1 mm for liquid crystal displays, impacting crack propagation during laser heating experiments .

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Patent Thickness measurement of substrate using color metrology Dominic J. Benvegnu 25 Aug 2017 1 Citations	The paper presents a metrology system utilizing color image analysis to measure the thickness of a layer on a substrate, without specifying the exact thickness of the substrate used.
Journal Article•DOI Influence of glass substrate thickness in laser scribing of glass Koji Yamamoto, Noboru Hasaka, Hideki Morita, Etsuji Ohmura - Show less +3 more 01 Jan 2010-Precision Engineering-journal of The International Societies for Precision Engineering and Nanotechnology 13 Citations	The glass substrate thickness used in the study was equal to or less than 1.1 mm, as the original thickness was reduced for size and weight optimization.
Proceedings Article•DOI Study of substrate thickness influence on effectiveness of miniaturization, based on implementation of artificial transmission lines Denis A. Letavin 01 Nov 2017 1 Citations	The substrate thicknesses used in the study were 1 mm, 1.5 mm, and 2 mm to analyze the influence on miniaturization effectiveness of a branch-line coupler.
Open access•Journal Article•DOI An influence of substrate thickness on electrical conductivity of dip-soldered copper joints Rajath Raj U. K, Saurav Manikantan, Likhith Poojary, Vaishnav V.R, Satyanarayan . - Show less +4 more 28 Apr 2022-Journal of Mines, Metals and Fuels	The substrate thicknesses used in the study were 0.3 mm and 3 mm to investigate their influence on electrical conductivity of dip-soldered copper joints immersed in liquid tin.
Patent Substrate for transfer, and transfer sheet Shimizu Azusa, Wakayama Yoshio - Show less +1 more 07 Dec 2015 1 Citations	The substrate for transfer has a total thickness ranging from 45 μm to 500 μm, with a thickness ratio of thermoplastic resin layer to glass film layer between 0.15 and 10.

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What is Thickness of nuclear surface?4 answersThe thickness of the nuclear surface refers to the width of the region in which the nuclear density falls from 90% to 10% of the central density. It is approximately 2.5 fm for spherical nuclei, and there is speculation about whether the constitution of this surface region is the same as that of the interior. The surface thickness of semi-infinite nuclei has been calculated using the Thomas-Fermi theory, and it is found to be 2.5 fm for the mass density and 3.3 fm for the charge density, although suggestions have been made to reduce the calculated thickness. The feasibility of measuring the surface thickness of the weak charge density of heavy nuclei through parity violating electron scattering experiments has also been discussed. Self-consistent calculations in the energy-density formalism have shown variations in the surface thickness of nuclear densities and single-particle potentials for different nuclei near the stability line. A three-part density-dependent effective interaction called the modified δ interaction (MDI) has been used to calculate the surface properties of semi-infinite nuclei, resulting in a surface thickness of 2.2 fm and surface energy of 19.3 MeV.

What is the importance of thickness in LDPE packaging?3 answersThe thickness of LDPE packaging is important for several reasons. Firstly, the permeation of gases through LDPE films is affected by thickness, with thicker films showing a more noticeable effect. Secondly, the mechanical properties and biodegradability of LDPE blended films are influenced by thickness, with optimum thicknesses required for high biodegradation and superior mechanical strength. Additionally, the thickness of LDPE laminate paper used for packaging can impact the cost of packaging materials. Lastly, the specific migration process of additives in LDPE films, such as antioxidants, can be influenced by film thickness, with thicker films showing different diffusion coefficients compared to thinner films. Overall, the thickness of LDPE packaging plays a significant role in gas permeation, mechanical properties, biodegradability, cost, and migration of additives.

What are the factors that affect the design thickness of a two-way slab?5 answersThe factors that affect the design thickness of a two-way slab include the support conditions, loading pattern, span dimensions, grade of concrete, and aspect ratio. The support conditions and loading pattern determine the distribution of forces on the slab, while the span dimensions and aspect ratio influence the structural behavior of the slab. The grade of concrete affects the strength and durability of the slab. Additionally, the design codes and analysis methodologies play a crucial role in determining the required thickness for serviceability and strength requirements. The use of artificial neural networks and structural software programs can aid in the design process by providing accurate deflection predictions and optimizing the slab thickness.

What is the optimum thickness of the printed circuit board material?5 answersThe optimum thickness of the printed circuit board material varies depending on the specific requirements and characteristics of the board. However, the abstracts provide some insights into the thicknesses used in different contexts. One abstract mentions a solder resist layer with a thickness of greater than 10 microns, possibly 15 microns, to prevent flash-over between components. Another abstract discusses an anodically oxidized film with a thickness of 50-800nm on the front surface of an aluminum or aluminum alloy base material. Yet another abstract mentions a polyethersulfone film with a thickness of 4-300mum, preferably 15-50mum, for a flexible printed circuit board. These examples highlight the range of thicknesses used in different applications, indicating that the optimum thickness depends on the specific requirements of the printed circuit board.

What is the meaning of substrate?5 answersA substrate refers to a material or surface on which other materials or components are deposited or attached. It provides a foundation or base for the growth or formation of various structures or devices. In the context of the provided abstracts, substrates are mentioned in relation to different applications. For example, one abstract discusses a substrate used in the manufacturing of an optical device, where a specific type of spacer is formed on the substrate. Another abstract mentions a substrate used in the manufacturing of a display device, with a spacer directly in contact with an overcoat layer. Additionally, a substrate is mentioned in the context of making retroreflective articles, with a surface comprising prism elements and depressions. Furthermore, a substrate is described in the field of display technology, with signal and GND lines for removing static charges. Lastly, a substrate is discussed in the context of achieving a lowered probability of defects in the manufacturing of a semiconductor device, with specific surface roughness and diameter requirements.

How do you choose a substrate for thin film?10 answers

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