scholarly journals Evaluation of De-Embedding Methods for Impedance Characterization of Magnetic Nanoparticles

2021 ◽  
Vol 16 (1) ◽  
pp. 1-4
Author(s):  
Rafael Cortês De Medeiros ◽  
Marcos V. Puydinger dos Santos ◽  
Leandro Manera

Data storage and memory access has been, over the years, a technological issue due to the big volume of digital information. High-frequency magneto-transport in ferromagnetic nanoparticles may be used to deal with nanoscale storage devices, which requires an adequate electrical and magnetic characterization in the frequency domain. In this work, we fabricate ferromagnetic nanoparticles on top of platinum electrodes using focused-electron-beam induced +deposition (FEBID) method. Electrical characterization was performed using a Vector Network Analyzer (VNA). After these measurements, three de-embedding methods were applied: Open De-Embedding (OPD), Open-Short De-Embedding (OSD) and the Thru-Short-Open De-Embedding (TSOD) methods. We could observe that Thru-Short-Open De-Embedding provides good accuracy for evaluating the scattering parameters and to compensate the electrodes (fixture) signal due to the high frequencies behavior of ferromagnetic nanoparticles. The results will be useful to characterize ferromagnetic nanodisks used in data storage devices.

2006 ◽  
Vol 26 (1) ◽  
pp. 149-153 ◽  
Author(s):  
M. Ben Ali ◽  
T. Homri ◽  
Y. Korpan ◽  
A. Abdelgani ◽  
M. Ali Maaref ◽  
...  

Author(s):  
D. Hitchen ◽  
S. Ghosh

The polarization hysteresis and current leakage characteristics of bismuth ferrite, BiFeO3 (BFO) thin films deposited by pulsed laser deposition was measured while varying the temperature from 80 - 300 K in increments of 10 K, to determine the feasibility of BFO for capacitive applications in memory storage devices. Data is compared to the performance of prototypic ferroelectric barium strontium titanate, BaxSr1-xTiO3 (BST) under similar conditions. Finding contacts on the BFO samples that exhibited acceptable dielectric properties was challenging; and once identified, the polarization characteristics between them varied greatly. However, the non-uniformity among the contact points within each sample suggests that either the samples were defective (by contamination or growth process), or that the deposition process of the contacts may have undermined the functionality of the devices. Subjected to increasing temperatures, BFO's polarization improved, and though its polarizability was shown to be inferior to BST, the dielectric loss was less.


2019 ◽  
Vol 2 (8) ◽  
pp. 121-127
Author(s):  
Jaeheon Lee ◽  
Kenneth L. Bartley ◽  
Olgierd A. Palusinski

Author(s):  
Federico Sandoval-Ibarra

An automatic test environment (ATE) based on a PSoC has been developed to perform electrical characterization of integrated circuits (ICs). The ICs are designed for academic and research purposes as part of the Electronic Design graduate program at NVESTAV-Guadalajara Unit; these ICs are manufactured in standard N-well, 5-V, 1.5μm/0.5μm CMOS technologies. The ATE offers programmable capabilities to develop master-slave architectures, memory for data storage, functions generator to stimulate circuits and systems, current/voltage sources for several purposes, current-voltage measurements, and ports to download experimental data to a PC. To date, several ICs have been tested with the help of the ATE. In this paper, however, examples based on MOS Transistors only are presented in order to describe the ATE performance and also to show how experimental data of the devices under characterization were validated through SPICE simulations, experimental data given by manufacturers, and using commercial equipment as well.


1981 ◽  
Vol 4 ◽  
Author(s):  
T. J. Stultz ◽  
J. F. Gibbons

ABSTRACTStructural and electrical characterization of laser recrystallized LPCVD silicon films on amorphous substrates using a shaped cw laser beam have been performed. In comparing the results to data obtained using a circular beam, it was found that a significant increase in grain size can be achieved and that the surface morphology of the shaped beam recrystallized material was much smoother. It was also found that whereas circular beam recrystallized material has a random grain structure, shaped beam material is highly oriented with a <100> texture. Finally the electrical characteristics of the recrystallized film were very good when measured in directions parallel to the grain boundaries.


2011 ◽  
Vol E94-C (2) ◽  
pp. 157-163 ◽  
Author(s):  
Masakazu MUROYAMA ◽  
Ayako TAJIRI ◽  
Kyoko ICHIDA ◽  
Seiji YOKOKURA ◽  
Kuniaki TANAKA ◽  
...  

Author(s):  
E. Hendarto ◽  
S.L. Toh ◽  
J. Sudijono ◽  
P.K. Tan ◽  
H. Tan ◽  
...  

Abstract The scanning electron microscope (SEM) based nanoprobing technique has established itself as an indispensable failure analysis (FA) technique as technology nodes continue to shrink according to Moore's Law. Although it has its share of disadvantages, SEM-based nanoprobing is often preferred because of its advantages over other FA techniques such as focused ion beam in fault isolation. This paper presents the effectiveness of the nanoprobing technique in isolating nanoscale defects in three different cases in sub-100 nm devices: soft-fail defect caused by asymmetrical nickel silicide (NiSi) formation, hard-fail defect caused by abnormal NiSi formation leading to contact-poly short, and isolation of resistive contact in a large electrical test structure. Results suggest that the SEM based nanoprobing technique is particularly useful in identifying causes of soft-fails and plays a very important role in investigating the cause of hard-fails and improving device yield.


Author(s):  
Randal Mulder ◽  
Sam Subramanian ◽  
Tony Chrastecky

Abstract The use of atomic force probe (AFP) analysis in the analysis of semiconductor devices is expanding from its initial purpose of solely characterizing CMOS transistors at the contact level with a parametric analyzer. Other uses found for the AFP include the full electrical characterization of failing SRAM bit cells, current contrast imaging of SOI transistors, measuring surface roughness, the probing of metallization layers to measure leakages, and use with other tools, such as light emission, to quickly localize and identify defects in logic circuits. This paper presents several case studies in regards to these activities and their results. These case studies demonstrate the versatility of the AFP. The needs and demands of the failure analysis environment have quickly expanded its use. These expanded capabilities make the AFP more valuable for the failure analysis community.


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