ARTICLES HAVING VIAS WITH GEOMETRY ATTRIBUTES AND METHODS FOR FABRICATING THE SAME

    公开(公告)号:US20200161232A1

    公开(公告)日:2020-05-21

    申请号:US16749503

    申请日:2020-01-22

    Abstract: Articles and semiconductor packages that incorporate glass-based substrates are disclosed, as well as methods of forming thereof. An article includes a glass-based substrate comprising first and second major surfaces spaced a distance from and parallel to each other, and a tapered via extending through the substrate. The tapered via includes a cross section that is symmetrical about a plane that is between and equidistant to the first and second major surfaces of the glass-based substrate and an interior wall with a first tapered region and a second tapered region positioned between the first major surface and the plane. The respective slopes of the first and second tapered regions are constant and the slope of the first tapered region is not equal to the slope of the second tapered region.

    Methods for etching vias in glass-based articles employing positive charge organic molecules

    公开(公告)号:US12180108B2

    公开(公告)日:2024-12-31

    申请号:US16204496

    申请日:2018-11-29

    Abstract: Methods of forming vias in a glass-based article by laser-damage-and-etch processes including etching solutions having positive charge organic molecules are disclosed. In some embodiments, a method of forming a via in a glass-based article includes forming a damage track through a bulk of the glass-based article extending from a first surface of the glass-based article to a second surface of the glass-based article, and applying an etching solution to the glass-based article to form the via. The etching solution includes at least one acid and a positive charge organic molecule. An etch rate at the first surface and the second surface is lower than an etch rate at the damage track.

    Articles having vias with geometry attributes and methods for fabricating the same

    公开(公告)号:US10580725B2

    公开(公告)日:2020-03-03

    申请号:US15977195

    申请日:2018-05-11

    Abstract: Articles and semiconductor packages that incorporate glass-based substrates are disclosed, as well as methods of forming thereof. An article includes a glass-based substrate comprising first and second major surfaces spaced a distance from and parallel to each other, and a tapered via extending through the substrate. The tapered via includes a cross section that is symmetrical about a plane that is between and equidistant to the first and second major surfaces of the glass-based substrate and an interior wall with a first tapered region and a second tapered region positioned between the first major surface and the plane. The respective slopes of the first and second tapered regions are constant and the slope of the first tapered region is not equal to the slope of the second tapered region.

    METHODS FOR ETCHING VIAS IN GLASS-BASED ARTICLES EMPLOYING POSITIVE CHARGE ORGANIC MOLECULES

    公开(公告)号:US20190185373A1

    公开(公告)日:2019-06-20

    申请号:US16204496

    申请日:2018-11-29

    CPC classification number: C03C15/00 C03B33/0222 C03C23/006 C08F226/04

    Abstract: Methods of forming vias in a glass-based article by laser-damage-and-etch processes including etching solutions having positive charge organic molecules are disclosed. In some embodiments, a method of forming a via in a glass-based article includes forming a damage track through a bulk of the glass-based article extending from a first surface of the glass-based article to a second surface of the glass-based article, and applying an etching solution to the glass-based article to form the via. The etching solution includes at least one acid and a positive charge organic molecule. An etch rate at the first surface and the second surface is lower than an etch rate at the damage track.

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