CMP (chemical mechanical planarization) copper slurry is a type of chemical slurry used in the CMP process. The process involves the utilization of a chemical slurry formulation for mechanically removing unwanted dielectric or conductive materials on silicon wafers so that a smooth and near-perfect flat surface is achieved upon which layers of integrated circuitry can be built. The CMP copper slurry is the type of CMP slurry which is specifically designed to planarize copper surfaces. Different types of slurries are developed for planarization of different metal surfaces so as to take into account the properties of those metals. This is important in order to ensure that the silicon wafer surface is not damaged or scratched due to the chemical interaction between the slurry and the wafer surface. For example, taking into account copper’s chemically active nature, metal ions are generally not utilized for planarization, and instead, organic amine and colloidal silica are majorly utilized. Other surfaces for which CMP slurries are developed include aluminum, tungsten, carbon nanotubes, and silicon dioxide.
The global
CMP
copper slurries market can be segmented based on technology,
application, and region.
In terms
of technology, the CMP copper slurry market can be classified into shallow
trench isolation (STI), through-silicon-via (STV), inter-dielectric (ILD), and
front-end-of-line (FEOL) technology among the majorly-used ones. Other
technologies include polysilicon, large-scale integration (LSI), line-hole
process, poly-Si stop and inter-metal dielectric technology.
In terms
of application, the CMP process is required in the semiconductor industry for
the fabrication of integrated circuits. These circuits are then employed in a
variety of electronic and electrical products, primarily in the ICT
(information and communications technology) industry. However, the rapid
development of technology in other industries such as medical, photography, and
environmental has fueled the market for CMP copper slurries.
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In terms
of region, the CMP copper slurry market can be classified into North America,
Latin America, Europe, Asia Pacific, and the Middle East & Africa.
The
manufacturing of CMP slurries and by extension, of CMP copper slurries is a
complex process. It requires advanced technology and in-depth knowledge of the
subject. Research & development (R&D) is an important aspect of the
market, with companies consistently investing in the development of new slurries
and their combination. It is also important for companies to have R&D
facilities, as the CMP copper slurries need to be customized according to the
requirement of various clients.
Given the
investment and technology needed for manufacturing CMP copper slurries, this
activity is restricted to developed regions and countries. These include North
America and Europe, apart from countries such as China and Japan in Asia
Pacific.
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It is
important to note that the global market for CMP copper slurries is expected to
expand at a higher growth rate as compared to other slurries, as copper has
started displacing other materials as the preferred choice for complex electric
circuitry. This is due to its several useful properties such as higher level of
thermal resistivity and high electrical conductivity.
The global
CMP copper slurry market is a highly consolidated market due to the high level
of technology required. The total number of companies in the market is
restricted to less than 30 and some of the major players include Cabot
Microelectronics Corporation, Versum Material Inc., Fujimi Incorporated, BASF
SE, The Dow Chemical Company, and Hitachi Chemical Co. Ltd.
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