Methods and equipment for depositing high quality reflective coatings

a reflective coating and high-quality technology, applied in the field of thin film coatings, can solve the problems of reducing the visible transmission of the coating, affecting the color of the coating, and adding up to total absorption levels that are not acceptable for some applications

Inactive Publication Date: 2007-04-12
CARDINAL CG
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Benefits of technology

[0014] There can also be sections sputtering up and down at the same time and location. The upward sputtering section is characterized by a series of lower targets mounted at lower elevation than the path of substrate travel, and the downward sputtering section is characterized by a series of upper targets mounted at higher elevation than the path of substrate travel. In the present embodiments, the downward sputtering section has at least 39 downward sputtering chambers each including at least one of the upper targets, and the upward sputtering section has a plurality of upward sputtering chambers each including at least one of the lower targets. In these embodiments, the downward sputtering chambers form at least seven downward deposition systems comprising, in sequence along th...

Problems solved by technology

For multiple silver films in a layer stack this can add up to total absorption levels not acceptable for some applications.
This will also reduce the visible transmission of the coating, and/or negatively impact the ...

Method used

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  • Methods and equipment for depositing high quality reflective coatings
  • Methods and equipment for depositing high quality reflective coatings
  • Methods and equipment for depositing high quality reflective coatings

Examples

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Embodiment Construction

[0031] The following detailed description is to be read with reference to the drawings, in which like elements in different drawings have like reference numerals. The drawings, which are not necessarily to scale, depict selected embodiments and are not intended to limit the scope of the invention. Skilled artisans will recognize that the examples provided herein have many useful alternatives that fall within the scope of the invention.

[0032] Single and double silver low-emissivity coatings have been known in the art for years. Single silver low-emissivity coatings provide advantageous infrared reflection, commonly in the neighborhood of 96%. Double silver low-emissivity coatings offer further improvements in terms of improved spectral selectivity and higher solar infrared reflection. There are, however, practical ceilings on the infrared reflection levels that can be achieved using a double silver low-emissivity coating. For example, while increasing the amount of silver in a doubl...

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Abstract

Methods and equipment for depositing coatings on glass and other substrates. In some embodiments, methods and equipment are provided for depositing reflective thin film coatings, such as low-emissivity coatings that are particularly reflective of infrared radiation, optionally by a downward coating operation. In some embodiments, such a downward coating operation is coupled with an upward coating operation used to deposit another coating.

Description

RELATED APPLICATIONS [0001] The present application claims priority to U.S. utility application Ser. No. 11 / 398,345 (“the '345 application”), filed Apr. 5, 2006, which in turn claims priority to U.S. utility application Ser. No. 11 / 360,266, filed Feb. 23, 2006, and to U.S. provisional application No. 60 / 725,891, filed Oct. 11, 2005, the entire contents of each which are incorporated herein by reference. The present application is a continuation-in-part of the '345 application.FIELD OF THE INVENTION [0002] The present invention relates to thin film coatings for glass and other substrates. In particular, this invention relates to low-emissivity coatings that are reflective of infrared radiation. Also provided are methods and equipment for depositing thin film coatings. BACKGROUND OF THE INVENTION [0003] Low-emissivity coatings are well known in the art. Typically, they include one or two layers of infrared-reflection film and two or more layers of transparent dielectric film. The infr...

Claims

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Application Information

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IPC IPC(8): B05D5/12C23C16/00
CPCC03C17/36Y10T428/24942C03C17/3626C03C17/3639C03C17/3644C03C17/3652C03C17/366C03C17/3681C03C2217/78C03C2218/153C03C2218/154C23C14/568E06B3/6715Y10T428/24612Y10T428/2495Y10T428/24975C03C17/3613Y10T428/31504C03C17/3642C03C2217/211C03C2217/216C03C2218/156C23C14/086C23C14/185C23C14/35E06B9/24E06B2009/2417G02B5/208G02B5/26Y02B80/22
Inventor HARTIG, KLAUS
Owner CARDINAL CG
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