Currents' Physical Components (CPC) of the Supply Current of Unbalanced LTI Loads at Asymmetrical and Nonsinusoidal Voltage

2017 ◽  
Vol 1 (9) ◽  
pp. 32-37 ◽  
Author(s):  
Prashanna BHATTARAI
Keyword(s):  
Supply Current ◽  
Nonsinusoidal Voltage ◽  
Physical Components

Burn-in Failure Analysis of 0.5μm 1MB SRAM: Barrier Glue Layer Cracks and Tungsten Plug “Worm Holes”

1996 ◽  
Author(s):  
E. Widener ◽  
S. Tatti ◽  
P. Schani ◽  
S. Crown ◽  
B. Dunnigan ◽  
...  
Keyword(s):  
Failure Analysis ◽  
Product Quality ◽  
Cmos Process ◽  
Designed Experiments ◽  
Root Cause ◽  
Poly Silicon ◽  
New Process ◽  
Supply Current ◽  
Electrical Analysis ◽  
Current Characteristics

Abstract A new 0.5 um 1 Megabit SRAM which employed a double metal, triple poly CMOS process with Tungsten plug metal to poly /silicon contacts was introduced. During burn-in of this product, high currents, apparently due to electrical overstress, were experienced. Electrical analysis showed abnormal supply current characteristics at high voltages. Failure analysis identified the sites of the high currents of the bum-in rejects and discovered cracks in the glue layer prior to Tungsten deposition as the root cause of the failure. The glue layer cracks allowed a reaction with the poly/silicon, causing opens at the bottom of contacts. These floating nodes caused high currents and often latch-up during burn-in. Designed experiments in the wafer fab identified an improved glue layer process, which has been implemented. The new process shows improvement in burn in performance as well as outgoing product quality.

Supply current testing in linear bipolar ICs

1994 ◽  
Vol 30 (2) ◽  
pp. 128-130 ◽  
Author(s):  
D.K. Papakostas ◽  
A.A. Hatzopoulos
Keyword(s):  
Current Testing ◽  
Supply Current

scholarly journals Design of the Class-E Power Amplifier with Finite DC Feed Inductance under Maximum-Rating Constraints

2021 ◽  
Vol 11 (9) ◽  
pp. 3727
Author(s):  
Ingrid Casallas ◽  
Carlos-Ivan Paez-Rueda ◽  
Gabriel Perilla ◽  
Manuel Pérez ◽  
Arturo Fajardo
Keyword(s):  
Quality Factor ◽  
Power Amplifier ◽  
Wide Spectrum ◽  
Circuit Simulation ◽  
Percentage Error ◽  
Resonant Circuit ◽  
Mean Square ◽  
Peak Voltage ◽  
Supply Current ◽  
Class E

This paper proposes an analytical expression set to determine the maximum values of currents and voltages in the Class-E Power Amplifier (PA) with Finite DC-Feed Inductance (FDI) under the following assumptions—ideal components (e.g., inductors and capacitors with infinite quality factor), a switch with zero rise and fall commutation times, zero on-resistance, and infinite off-resistance, and an infinite loaded quality factor of the output resonant circuit. The developed expressions are the average supply current, the RMS (Root Mean Square) current through the DC-feed inductance, the peak voltage and current in the switch, the RMS current through the switch, the peak voltages of the output resonant circuit, and the peak voltage and current in the PA load. These equations were obtained from the circuit analysis of this ideal amplifier and curve-fitting tools. Furthermore, the proposed expressions are a useful tool to estimate the maximum ratings of the amplifier components. The accuracy of the expressions was analyzed by the circuit simulation of twelve ideal amplifiers, which were designed to meet a wide spectrum of application scenarios. The resulting Mean Absolute Percentage Error (MAPE) of the maximum-rating constraints estimation was 2.64%.

scholarly journals Formulation of 2D Graphene Deformation Based on Chiral-Tube Base Vectors

2010 ◽  
Vol 2010 ◽  
pp. 1-7
Author(s):  
Bohua Sun
Keyword(s):  
Molecular Dynamics ◽  
Shell Model ◽  
Continuum Model ◽  
Real Space ◽  
Honeycomb Lattice ◽  
Mechanical Behaviors ◽  
Future Studies ◽  
Physical Components ◽  
Intrinsic Feature ◽  
The Continuum

The intrinsic feature of graphene honeycomb lattice is defined by its chiral index (n,m), which can be taken into account when using molecular dynamics. However, how to introduce the index into the continuum model of graphene is still an open problem. The present manuscript adopts the continuum shell model with single director to describe the mechanical behaviors of graphene. In order to consider the intrinsic features of the graphene honeycomb lattice—chiral index (n,m), the chiral-tube vectors of graphene in real space have been used for construction of reference unit base vectors of the shell model; therefore, the formulations will contain the chiral index automatically, or in an explicit form in physical components. The results are quite useful for future studies of graphene mechanics.

O-010: Quality of life and physical components linked to sarcopenia: baseline data of the SarcoPhAge study

2015 ◽  
Vol 6 ◽  
pp. S7-S8
Author(s):  
C. Beaudart ◽  
J.-Y. Reginster ◽  
J. Petermans ◽  
S. Gillain ◽  
A. Quabron ◽  
...  
Keyword(s):  
Quality Of Life ◽  
Baseline Data ◽  
Physical Components

VISUAL SEMIOLOGY IN ARCHITECTURAL DESIGN

2021 ◽  
Author(s):  
Fatma Nazlı Köksal ◽  
Hasan Doğan
Keyword(s):  
Visual Culture ◽  
Architectural Design ◽  
Communicative Action ◽  
The Other ◽  
Value Systems ◽  
Traditional Architecture ◽  
Traditional Structures ◽  
Social Components ◽  
Cultural Structure ◽  
Physical Components

Beyond being a shelter, houses are such structures which obtain meanings shaped by the influence of culture, particularly reflecting the society’s socio-cultural structure. As a time-khronos and space-topos pattern, the houses reflect the characteristics of the culture or ethnic group which they are part of, while on the other hand, they reflect the images of the individual’s essence as a communicative action. The effect of climate and typology, which are physical components of culture, as well as social components of culture, such as value systems, belief, lifestyle and habits, are cardinal factors in the formation of traditional houses. In this respect, traditional structures are visual representation spaces that narrates their own story, like verbal culture, and they convey their unique codes through visuality. This study, which discusses traditional architecture as a cultural text, aims to reveal traditional Urfa houses through analytical readings, within the context of visual semiology.. The samples selected within the scope of the study will be evaluated according to the context of stylistic features they are part of, such as plan and spatial perspective, the location of the houses, and detections regarding the visual culture will be discussed through the cultural and architectural design approach of Umberto Eco.

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