Fluorescence based thermometry for packaging applications

    公开(公告)号:US10600664B2

    公开(公告)日:2020-03-24

    申请号:US15585842

    申请日:2017-05-03

    Abstract: Methods and apparatus for measuring the temperature of epoxy resin in an electronics package are provided herein. In some embodiments, apparatus for encapsulating an electronics package includes: a process chamber having a chamber body enclosing a processing volume; a substrate support having a support surface for receiving and supporting a substrate for forming an electronics package; and a temperature sensor to measure a temperature of an epoxy resin in an electronics package. The temperature sensor includes: an input apparatus including at least a light source disposed outside the chamber body to provide an excitation light energy to a portion of the epoxy resin; and an output apparatus including at least a signal analyzer disposed outside the chamber body to detect fluorescent light energy emitted by the portion of the epoxy resin and determine a temperature of the epoxy resin based on the excitation light energy and the fluorescent light energy.

    Common electrostatic chuck for differing substrates

    公开(公告)号:US11476097B2

    公开(公告)日:2022-10-18

    申请号:US17012275

    申请日:2020-09-04

    Abstract: An apparatus, methods and controllers for electrostatically chucking varied substrate materials are disclosed. Some embodiments of the disclosure provide electrostatic chucks with variable polarity and/or voltage. Some embodiments of the disclosure provide electrostatic chucks able to operate as monopolar and bipolar electrostatic chucks. Some embodiments of the disclosure provide bipolar electrostatic chucks able to compensate for substrate bias and produce approximately equal chucking force at different electrodes.

    Methods and apparatus for high voltage electrostatic chuck protection

    公开(公告)号:US11289357B2

    公开(公告)日:2022-03-29

    申请号:US16550521

    申请日:2019-08-26

    Abstract: Methods and apparatus for increasing voltage breakdown levels of an electrostatic chuck in a process chamber. A soft anodization layer with a thickness of greater than zero and less than approximately 10 microns is formed on an aluminum base of the electrostatic chuck. The soft anodization layer remains thermally elastic in a temperature range of approximately −50 degrees Celsius to approximately 100 degrees Celsius. An alumina spray coating is then applied on the soft anodization layer. The soft anodization layer provides thermal stress relief between the aluminum base and the alumina spray coating to reduce/eliminate cracking caused by the thermal expansion rate differences between the aluminum base and the alumina spray coating.

    Two piece shutter disk assembly with self-centering feature

    公开(公告)号:US11043406B2

    公开(公告)日:2021-06-22

    申请号:US16383772

    申请日:2019-04-15

    Abstract: Two-piece shutter disk assemblies for use in process chambers are provided herein. In some embodiments, a shutter disk assembly for use in a process chamber includes an upper disk member having a top surface and a bottom surface, wherein a central alignment recess is formed in a center of the bottom surface, and a lower carrier member having a solid base having an upper support surface, wherein the upper support surface includes a first central self-centering feature disposed in the recess formed in the center of the bottom surface and an annular outer alignment feature that protrudes upward from a top surface of the lower carrier and forms a pocket, wherein the upper disk member is disposed in the pocket.

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