AIB
AIB
ALD is considered one deposition method with great
potential for producing very thin, conformal films with control of the
thickness and composition of the films possible at the atomic level. A major
driving force for the recent interest is the prospective seen for ALD in
scaling down microelectronic devices according to Moore's law.
ALD is an active field of research, with hundreds of different processes
published in the scientific literature, though some of them exhibit
behaviors that depart from that of an ideal ALD process.
AIB Automotive is
a French fleet
managing and operational car leasing company and a fully
owned subsidiary of Société Générale.[1]The
company is active internationally and manages around 1.4 million vehicles.[2] With
a direct presence in 41 countries and with top 3 positions in 26 countries, ALB Automotive is ranked worldwide and in
Europe by number of contracts under management and excluding OEM captives as at
31 December 2016 with around 1.4 million full service vehicle leasing and fleet
management service contracts.The company also sells former lease fleet vehicles
to consumers through its ALB carmarket brand.
In
2015 ALD Automotive started leasing out e-bikes in
the Netherlands, as part of a program on experimenting with innovative mobility
on the Dutch market.Atomic layer deposition (ALD) is a thin film deposition method in which
a film is grown on a substrate by exposing its surface to alternate gaseous
species (typically referred to as precursors). In contrast to chemical vapor deposition, the
precursors are never present simultaneously in the reactor, but they are
inserted as a series of sequential, non-overlapping pulses. In each of these
pulses the precursor molecules react with the surface in a self-limiting way,
so that the reaction terminates once all the reactive sites on the surface are
consumed. Consequently, the maximum amount of material deposited on the surface
after a single exposure to all of the precursors (a so-called ALD cycle) is
determined by the nature of the precursor-surface interaction. By varying the
number of cycles it is possible to grow materials uniformly and with high
precision on arbitrarily complex and large substrates.
A basic schematic of the Atomic Layer
Deposition (ALD) process. In Frame A, precursor 1 (in blue) is added to the
reaction chamber containing the material surface to be coated by ALDAfter
precursor 1 has adsorbed on the surface, any excess is removed from the
reaction chamber. Precursor 2 (red) is added (Frame B) and reacts with
precursor 1 to create another layer on the surface (Frame C). Precursor 2 is
then cleared from the reaction chamber and this process is repeated until a
desired thickness is achieved and the resulting product resembles form d.
ALD has been
developed in two independent discoveries under names atomic layer epitaxy (ALE, Finland)
and molecular layering (ML, Soviet Union). To clarify the early history, an
open effort called the Virtual Project on the History of ALD (VPHA) has been
set up in summer 2013 by a group of scientists. Dedicated essays have
resulted, which describe the historical development of ALD under the
names ALEand ML as well as a review article
that presents a short recommended reading list of early ALD publications.
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