Tungsten deposition
Tungsten deposition is a type of hydrothermal deposits that is rare in Indonesia. In Indonesia source sediment or tungsten mineralization is known in the area of Bangka Island. In this region tungsten mineralization has a close association with kasiterit. Deposition of this type generally found in the environment many granitic palace (continent) with an association of common minerals is kasiterit and molibdenit.
Some metal deposition or mineralization contained area of South Sulawesi is the Kuroko type deposits located in Sangkaropi, Tana Toraja, and sediment Cu-Au porpiri, located in Sasak, Tana Toraja Regency, the gold deposits found in the area Latimojong Kab. Luwu, nickel deposits are in Soroako, East Luwu and many more types of mineralization found in the area of South Sulawesi.
Sampling methods include tungsten deposits
1. Field sampling
Sample is taken from the vein quartz (sulphide ore) which contain the basic metals such as tungsten, magnetite, kalkopirit, Galena and haematite, gold and pyrite.
2. Analysis petrograpbic and Pima.
The aim was to determine rock types and alteration found in the investigation.
3. Fluid inclusion analysis
The aim was to determine the temperature and depth of mineralization in the formation of the investigation.
4. Methods Mineralogy grains analyst
This method used to determine the mineral association (in the form of mineral grains) found in an area mineralization.
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applied materials announces new 300mm tungsten deposition system
Free Online Library: Applied Materials Announces New 300mm Tungsten Deposition System. by "Business Wire"; Business, international Semiconductor production equipment Semiconductor
From: http://www.thefreelibrary.com/Applied+Materials+Announces+New+300mm+Tungsten+Deposition+System.-a076543456
deposition of tungsten films google patent search
Patent number: 6827978 Filing date: Feb 11, 2002 Issue date: Dec 7, 2004 Application number: 10/074,898
From: http://www.google.com/patents/about?id=Eu4QAAAAEBAJ&dq=5194877&ie=ISO-8859-1
method of tungsten chemical vapor deposition and tungsten plug
The present invention relates to a tungsten chemical vapor deposition method and a method for forming a tungsten plug. The tungsten chemical vapor deposition method of the present
From: http://www.freepatentsonline.com/6489239.html
tungsten silicide deposition process google patent search
Patent number: 6335280 Filing date: Jan 13, 1997 Issue date: Jan 1, 2002 Application number: 8/783,815
From: http://www.google.com/patents/about?id=Nq4CAAAAEBAJ&ie=ISO-8859-1
method for cleaning substrate prior to tungsten deposition patent
A method for cleaning a substrate prior to tungsten deposition is disclosed, said substrate having via holes and trenches lines thereon. The method includes steps of providing
From: http://www.freepatentsonline.com/5670016.html
description kinetics of chemical vapor deposition of
Hard tungsten carbide based coatings were deposited by chemical vapor deposition (CVD) at low temperatures onto metal substrates by hydrogen reduction of tungsten hexafluoride (WF6
From: http://bibliography.library.villanova.edu/Record/4593
tungsten cvd
TimeDomain CVD, Inc. Tungsten and Tungsten Silicide Chemical Vapor Deposition
From: http://www.timedomaincvd.com/CVD_Fundamentals/films/W_WSi.html
tungsten hexafluoride wikipedia the free encyclopedia
The dominant application of tungsten fluoride is in semiconductor industry, where it is widely used for depositing tungsten metal in a chemical vapor deposition process.
From: http://en.wikipedia.org/wiki/Tungsten(VI)_fluoride
vapor deposition of tungsten nitride invention
Tungsten nitride films were deposited on heated substrates by the reaction of vapors of tungsten bis(alkylimide)bis(dialkylamide) and a Lewis base or a hydrogen plasma. For example
From: http://www.freshpatents.com/Vapor-deposition-of-tungsten-nitride-dt20060615ptan20060125099.php
deposition of tungsten nitride invention
Methods for depositing a tungsten nitride layer are described. The methods form a tungsten nitride layer using a carefully controlled deposition technique such as pulsed nucleation
From: http://www.freshpatents.com/Deposition-of-tungsten-nitride-dt20060504ptan20060094238.php
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