Abstract:
A process and apparatus for the processing of a precision surface. The process and apparatus includes contacting of a precision surface in a process chamber with liquid or supercritical carbon dioxide in which sonic waves are generated.
Abstract:
A process of providing a semiconductor device with electrical interconnection capability wherein a sacrificial material is introduced into topographical features of the semiconductor device prior to chemical mechanical polishing so that debris formed during chemical mechanical polishing is incapable of falling into topographical features present on the semiconductor device. The sacrificial material is thereupon removed by liquid or supercritical carbon dioxide.
Abstract:
A process of removing residue from an etched precision surface. In this process the etched precision surface is contacted with a composition which includes liquid or supercritical carbon dioxide and a fluoride-generating species.
Abstract:
A process and apparatus for cleaning filters prior to recycling or disposal. In this process and apparatus liquid or supercritical carbon dioxide contacts the plugged pores of a filter under conditions in which carbon dioxide remains in the liquid or supercritical state.
Abstract:
A method and apparatus are provided for in situ monitoring and analyzing of process parameters for semiconductor fabrication processes including cleaning semiconductor wafers utilizing a supercritical fluid or a high pressure liquid such as CO2. The method and apparatus utilize a spectrometer having a reflective mirror proximate the vessel holding the high pressure fluid. NIR radiation transmitted into the vessel through a window and out of the vessel through an opposed window is reflected and detected and measured and the composition of the fluid in the pressure vessel is determined allowing the user to control process parameters based on the measured composition.
Abstract:
Methods are provided for making microfilters by subtractive techniques which remove a component or part of a filter material to form pores in the filter material and additive techniques which deposit a filter material onto a porous underlying substrate. All the methods employ a supercritical fluid or mixture which have very high solvency properties and low viscosity and CO2 is the preferred supercritical fluid.
Abstract:
A composition which includes liquid or supercritical carbon dioxide and an acid having a pKa of less than about 4. The composition is employed in a process of removing residue from a precision surface, such as a semiconductor sample, in which the precision surface is contacted with the composition under thermodynamic conditions consistent with the retention of the liquid or supercritical carbon dioxide in the liquid or supercritical state.