摘要:
Provided is a vapor phase self-assembled monolayer (SAM) coating apparatus having a small volume and reduced manufacturing costs. The apparatus includes: a chamber for providing space in which at least one substrate is mounted; one or more injection apparatuses, installed at a side of the chamber and in the form of an injector; and one or more supply units for supplying a liquid precursor into the precursor injection apparatus.
摘要:
A microsystem for separating serum from blood using a centrifuge is provided. The microsystem includes various chambers and channels. When blood is injected into the channels and centrifuged, serum and blood cells in the injected blood are distributed into different chambers. Thus, the serum can be separated from the blood.
摘要:
The present invention relates to a slurry for use in metal chemical-mechanical polishing (CMP) and a preparation method thereof. More particularly, the invention relates to a slurry for use in metal CMP, in which iron ions or divalent or higher valent metal ions are physico-chemically adsorbed on colloidal silica particles in the form of particles by a reduction, hydrolysis, impregnation or precipitation method, as well as a preparation method thereof. The slurry useful for metal CMP prepared according to the present invention has a uniform particle size distribution, and shows increased efficiencies as an oxidation catalyst and polishing slurry chemically adsorbed with metal particles, as compared to the prior metal CMP slurry distributed with metal ions. Also, the inventive slurry has long-term storage stability, since it does not show coagulation and precipitation phenomena even after it is stored for more than one year without a dispersant or a dispersion stabilizer. Furthermore, the prior fumed silica contains a large amount of environment-harmful substances for distribution stabilization, such as surfactants and amine compounds, whereas the inventive colloidal silica contains no environment-harmful substances as described above, and thus, is eco-friendly.
摘要:
A slurry recycling system for use in a chemical mechanical polishing (CMP) apparatus for polishing a workpiece by using a slurry containing an abrasive, a pH agent and a deionized water is provided. The slurry recycling system includes a slurry collection tank for storing the slurry used in the CMP apparatus as a recyclable slurry; an ultra filter for separating, from the recyclable slurry, a fluid ingredient containing the pH agent and the deionized water and the abrasive to allow the abrasive to be reintroduced into the slurry collection tank; and a reverse osmosis filter for separating, from the fluid ingredient, the pH agent and the deionized water to allow the pH agent to be reintroduced into the slurry collection tank and to allow the deionized water to be discharged out.
摘要:
One embodiment of the instant invention is a method of preventing the formation of silicic acid on exposed silicon of an electronic device formed on a silicon wafer and having silicon features, the method comprising: removing a portion of oxide (step 302) formed on the silicon wafer thereby exposing at least some portion of the silicon substrate or the silicon features; cleaning the silicon wafer by subjecting the silicon wafer to an ozonated solution (step 304), preferably deionized water; and drying the silicon wafer (step 306). Preferably, a thin oxide is formed on the silicon wafer during the step of subjecting the wafer to the ozonated solution. The thin oxide is, preferably, on the order of approximately 6 to 20 .ANG. thick. After removing said portions of oxide and thereby exposing portions of said silicon wafer and/or silicon feature, the exposed silicon becomes hydrophobic. However, after the exposed silicon is subjected to the ozonated solution, the silicon wafer becomes hydrophilic--thereby preventing the formation of silicic acid on the silicon wafer or the silicon features.