Patent ID: 9062368
Filing Date: 2015-06-23
Classification: C23C,G01N

Abstract:
1. A method of monitoring organic materials in-situ during a deposition process for depositing a film of one or more photoactive organic materials from one or more gas-phase photoactive organic materials onto a substrate in a processing chamber, the method comprising: (a) irradiating at least one of the one or more gas-phase photoactive organic materials at a monitored region inside the processing chamber with a radiation beam in-situ during the deposition process, thereby generating a photoluminescence emission having an intensity from the at least one of the one or more gas-phase photoactive organic materials being irradiated; (b) measuring the intensity P (c) for each gas-phase photoactive organic material being irradiated, determining from the intensity of the photoluminescence emission, at least one processing parameter associated with depositing the gas-phase photoactive organic material, wherein the at least one processing parameter is a concentration level c (d) calibrating the deposition process before step (a) by calculating a concentration conversion factor k where P