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PCM (phase-change memory) is an important class of data storage, operating based on the Joule heating-induced reversible switching of chalcogenide alloys. Nanoscale PCM often requires advanced microfabrication techniques such as dry (plasma) etching, but the possible impacts of process damages or imperfections on the device performance still remain relatively unexplored. This is critical because some chemical etching species are known to cause over-etching with rough edge onto the sidewall of a phase-change material. It is also possible that the phase-change material experiences a composition change due to etching-induced re-deposition of by-products or thermal stress. In this study, a finite-element simulation is performed to understand the effect of dry etching on the RESET characteristics of a nanoscale PCM device to provide a guideline on the PCM manufacturing and cell design.
This article was published in the following journal.
Both chemical and electrochemical etching are effective methods for tailoring the surface composition of Pt-based catalytic bimetallic nanoparticles (NPs). However, the detailed nanoscale etching mech...
Although some methods to improve phase-change memory efficiency have been proposed, an effective experimental approach to induce a phase-change like process without external heat energy has not yet be...
The etching process can be a useful method for the morphology control of nanostructures. Using precise experiments and theoretical calculations, we report a new ZnO etching process triggered by the re...
Resistive switching (RS) memory has stayed at the forefront of next-generation nonvolatile memory technologies. Recently, a novel class of transition metal oxides (TMOs), which exhibit reversible topo...
In this review the different concepts of nanoscale resistive switching memory devices are described and classified according to their I-V behaviour and the underlying physical switching mechanisms. By...
The aim of this study is to evaluate the effect of shortening the etching time on the 18-month clinical performance of resin composite restorations in primary molars after partial carious ...
The objective of this randomized clinical trial is to evaluate the survival of restoration with high viscosity glass ionomer cement (HVGIC) with pre-etching with polyacrilic acid compared ...
Prospective memory is the ability to implement an intention to the future (e.g. remember to take medication, attend a scheduled meeting), and has receive little attention in addiction. The...
The results of this study will contribute to a better understanding of prospective memory deficit processes in breast cancer in relation to sleep disorders frequently reported in this path...
Treatment clinical trial, randomized, controled, parallel, double-blinded, with four groups, that aims to evaluate the best application strategy when using a new Universal Adhesive system,...
Those occurrences, including social, psychological, and environmental, which require an adjustment or effect a change in an individual's pattern of living.
Preparation of TOOTH surfaces and DENTAL MATERIALS with etching agents, usually phosphoric acid, to roughen the surface to increase adhesion or osteointegration.
Type of declarative memory, consisting of personal memory in contrast to general knowledge.
Preparation of TOOTH surfaces, and of materials bonded to teeth or DENTAL IMPLANTS, with agents and methods which roughen the surface to facilitate adhesion. Agents include phosphoric or other acids (ACID ETCHING, DENTAL) and methods include LASERS.
The interval between two successive CELL DIVISIONS during which the CHROMOSOMES are not individually distinguishable. It is composed of the G phases (G1 PHASE; G0 PHASE; G2 PHASE) and S PHASE (when DNA replication occurs).
Blood is a specialized bodily fluid that delivers necessary substances to the body's cells (in animals) – such as nutrients and oxygen – and transports waste products away from those same cells. In vertebrates, it is composed of blo...
Stress is caused by your perception of situations around you and then the reaction of your body to them. The automatic stress response to unexpected events is known as 'fight or flight'. Discovered by Walter Cannon in 1932, it is the release of h...