Applied Materials, Inc.

Kamala Chakravarthy Raghavan

David Alexander Britz

Jeffrey L Franklin

An additive manufacturing apparatus including a platform and a dispenser configured to deliver successive layers of feed material onto the platform. One or more light sources generate multiple light beams to selectively fuse feed material in a layer on the platform and multiple optical assemblies receive the multiple light beams, where each respective optical assembly transmits a respective light beam along a respective optical path through the optical assembly. Each light beam is directed to a scan spot on the layer of feed material on the platform to scan the light beam to sweep the scan spot along a controllable path across the layer of feed material on the platform. An optical multiplexer selectively transmits the return light emitted or reflected from the respective scan spot from a respective optical path of a selected respective optical assembly of the multiple optical assemblies to the measurement device.

Melt pool monitoring in multi-laser systems

Embodiments described herein relate to a non-destructive measurement device measurement device and a non-destructive measurement method for determining coating thickness of a three-dimensional (3D) object. In one embodiment, at least one first 3D image of an uncoated surface of the object and at least one second 3D image of a coated surface of the object are collected and analyzed to the determine the coating thickness of the object.

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Santa Clara, CA, United States of America

Kamala Chakravarthy Raghavan