Patent ID: 8574670
Filing Date: 2013-11-05
Classification: B01D,B05C,B05D,C04B,C23C

Abstract:
1. A method of forming a membrane in a plurality of through-channels disposed in a substrate, the method comprising the steps of: a. providing the substrate to a chamber, the substrate having a first end, a second end, and a plurality of through-channels extending through the substrate from the first end to the second end, wherein the chamber has an inlet section below the substrate, a midsection supporting the substrate and separating the substrate from the inlet section, and an outlet section, wherein the substrate is disposed in the midsection such that the first end is, adjacent to and in fluid communication with the inlet section and the second end is adjacent to and in fluid communication with the outlet section, wherein the chamber is oriented vertically such that the inlet section is located at the bottom of the chamber below the midsection and the outlet section is located at the top of the chamber above the midsection; b. providing a liquid precursor to the inlet section, wherein the liquid precursor comprises membrane-forming materials; c. providing a pressure differential between the inlet section and the outlet section, wherein the pressure differential causes the liquid precursor to flow uniformly through the plurality of through-channels; and d. forming the membrane on a surface of the plurality of channels.