Abstract: A method for a textured surface on a chamber component is provided and includes providing a chamber component, applying a layer of a photoresist to a surface of the chamber component, exposing a portion of the photoresist to optical energy using a mask to cure a portion of the photoresist, removing uncured photoresist from the surface, and electrochemically etching the chamber component to form a textured surface on the chamber component.

Abstract: A multi-step electrochemical stripping method includes providing a determined electrode potential between a reference electrode and an article submerged in an electrolyte; recording a current peak value of a current signal flowing through the article; removing the voltage provided to the article when the current signal falls to a determined first current value after passing the current peak value; refreshing the electrolyte; providing the determined electrode potential again for a determined time and determining whether the current signal is less than a determined second current value during the determined time, if not, goes back to the refreshing step; and if yes, the process ends.

Abstract: An integrated physical and statistical method provides predictions of a reservoir property by operating on seismic data both before and after it is significantly enhanced, e.g., stacked/filtered. One or more matrix functions are derived from pre-stacked, partially-stacked, and/or post-stacked seismic data that are used to obtain a new attribute as well as to correlate/integrate the physical and statistical methods to obtain significantly improved predictions of a reservoir property.