International Technology Roadmap for Semiconductors 2003の要求清浄度について － シリコンウエハ表面と雰囲気環境に要求される清浄度, 分析方法の現状について －

Wave propagation and group velocity

By L I Sedov London: Cleaver-Hume Press Ltd Pp xvi + 363 Price 105s This is really two separate books within the same pair of covers First of all Chapters 1-3, some 145 pages, are devoted to the discussion of similarity and dimensional, methods and their application to a variety of problems in mechanics and fluid mechanics

http://iopscience.iop.org/article/10.1088/0031-9112/11/6/008/pdf

Similarity and Dimensional Methods in Mechanics

Vorlesungen uber theoretische Physik Von Prof. Arnold Sommerfeld. Band 1: Mechanik. Vierte, neubearbeitete Auflage. Pp. xii + 276. 18 D. marks. Band 2: Mechanik der deformierbaren Medien. Pp. xv + 376 + 4 plates. 18 D. marks. Band 3: Elektrodynamik. Pp. xvi + 368. 18 D. marks. Band 6: Partielle Differentialgleichungen der Physik. Pp. xiii + 332. 18 D. marks. (Wiesbaden: Dieterich'sche Verlagsbuchhandlung, 1947–1949.)

/pdf/lectures-on-theoretical-physics-4m0v0ffz5s.pdf

Lectures on Theoretical Physics

A new prototype triboelectric nanogenerator with superhydrophobic and self-cleaning features is invented to harvest water drop energy based on a sequential contact electrification and electrostatic induction process. Because of the easy-fabrication, cost-effectiveness, and robust properties, the developed triboelectric nanogenerator expands the potential applications to harvesting energy from household wastewater and raindrops.

Harvesting Water Drop Energy by a Sequential Contact-Electrification and Electrostatic-Induction Process

This brief develops a circuit theory on shielding effectiveness (SE) Kron’s modelling of parallel coupled nude-braided cables. The model is established via the approach of tensorial analysis of networks (TAN). The cable structure graph is elaborated from the lumped equivalent circuit including the braided cable transfer impedance. The SE is formulated from the branch and mesh space analyses by the mean of Kron’s formalism. To verify the relevance of the SE TAN model, comparisons with commercial tools using SPICE and 3D design full wave simulations are performed. As expected, the computed SE from 150-MHz to 750-MHz with tens-centimeter lengths cable braided assumed having 95.5% optical coverage is in good agreement with simulations.

Braid Shielding Effectiveness Kron’s Model via Coupled Cables Configuration

Nanocrystalline Samarium doped Nickel-Zinc-Bismuth Ferrites: Investigation of Structural, Electrical and Dielectric properties

The pin-socket connector susceptibility under vibration stress constitutes one of the electrical engineer breakthroughs. Only single electrical engineering is not enough to treat this challenging issue. The Multiphysics analysis is expected to be a solution to analyze this electromechanical dynamic pin-socket structure. This paper develops a dynamic contact Multiphysics analysis with the tensorial analysis of networks (TAN) formalism. The Multiphysics model integrates the pin relative velocity and position coupled with the instantaneous contact resistance implemented in an RC -network. An innovative method enabling to determine the vibration stress signature via the signal-to-noise (SNR) amplitude is established. The relevance of the Multiphysics TAN model is illustrated with an example of a 10-mm-length pin-socket under arbitrary waveform uniaxial vibration stress with 20-kHz bandwidth. It was shown that the contact resistance may fluctuate with more than thousand-time relative variation. More importantly, the vibration stressed pin-socket SNR in function of the RC -network parameters is discussed. The proposed Multiphysics analysis can be potentially applied to the electromagnetic compatibility and signal integrity investigation of assembled electronic equipment and printed circuit boards under vibration stress.

Multiphysics Analysis of Pin-Socket Electrical Dynamic Contact Susceptibility Under Vibration Stress

An innovative crosstalk effect modeling between I and B shape interconnect structure is investigated. The equivalent topology of the victim interconnect line (IL) in proximity of the B-shape line perturbation with three-coupled line (CL) is established. The IB topology S-matrix is calculated as a function of the IL and coupling coefficient parameters from the CL hexapole equivalent black box. The unfamiliar phenomenological analysis on the transmission coefficient antiresonance is associated to particular behavior of group delay. Analytical expression illustrates the relation between the particular phenomenon to the B-IL physical length and crosstalk. The theoretical investigation was confirmed with the victim I-IL transmission coefficient is influenced by the B-line crosstalk. Simulations and measurements with two IB IL microstrip prototypes validate experimentally the established three-CLs-based analytical S-parameter model.

S-Parameter Model of IB-Shape Interconnect Lines Including Crosstalk Perturbation

This paper develops an original circuit theory of unfamiliar stop-band (SB) negative group delay (NGD) topology. The proposed NGD topology is implemented without inductor component. The developed theory is established with passive cell constituted by RC-network based high-pass (HP) and low-pass (LP) NGD composite circuits. The analytical investigation of the SB-NGD circuit is introduced from the elaboration of voltage transfer function (VTF). The canonical form enabling to identify SB-NGD circuit is analytically expressed. The different SB-NGD characteristics as GD value, and, center and cut-off frequencies are innovatively formulated in function of the circuit resistor and capacitor components. The existence condition of SB-NGD function is also established. The inductorless SB-NGD topology is validated by a proof-of-concept (POC) circuit implemented by surface-mounted-device (SMD) component based printed circuit board (PCB). The measured VTF magnitude and group delay (GD) are extracted from the experimented S-parameters. A good agreement between the calculated, simulated and measured results is obtained. The SB-NGD behavior has measured center frequency of about 32 MHz. The lower- and upper-NGD cut-off frequencies are about 9.15 MHz and 98.3 MHz. The optimal NGD values at low and higher frequencies are −3.25 ns and −56 ps.

https://hal.univ-reunion.fr/hal-03375103/document

Blaise Ravelo

Papers

Braid Shielding Effectiveness Kron’s Model via Coupled Cables Configuration

Nanocrystalline Samarium doped Nickel-Zinc-Bismuth Ferrites: Investigation of Structural, Electrical and Dielectric properties

Multiphysics Analysis of Pin-Socket Electrical Dynamic Contact Susceptibility Under Vibration Stress

S-Parameter Model of IB-Shape Interconnect Lines Including Crosstalk Perturbation

Design and Synthesis of Inductorless Passive Cell Operating as Stop-Band Negative Group Delay Function