Methods of rejuvenating sputtering targets
    7.
    发明授权
    Methods of rejuvenating sputtering targets 有权
    振动溅射靶材的方法

    公开(公告)号:US08491959B2

    公开(公告)日:2013-07-23

    申请号:US13465475

    申请日:2012-05-07

    IPC分类号: B05D1/02

    摘要: In various embodiments, a sputtering target initially formed by ingot metallurgy or powder metallurgy and comprising a sputtering-target material is provided, the sputtering-target material (i) comprising a refractory metal, (ii) defining a recessed furrow therein, and (iii) having a first grain size and a first crystalline microstructure. A powder is spray-deposited within the furrow to form a layer therein, the layer (i) comprising the metal, (ii) having a second grain size finer than the first grain size, and (iii) having a second crystalline microstructure more random than the first crystalline microstructure. Spray-depositing the powder within the furrow forms a distinct boundary line between the layer and the sputtering-target material.

    摘要翻译: 在各种实施方案中,提供了最初通过铸锭冶金或粉末冶金形成并且包括溅射靶材料的溅射靶,其中包含难熔金属的溅射靶材料(i),(ii)在其中限定凹陷的沟槽,和(iii )具有第一晶粒尺寸和第一晶体微结构。 将粉末喷涂在沟槽内以在其中形成层,层(i)包含金属,(ii)具有比第一粒度更细的第二粒度,和(iii)具有更随机的第二结晶微结构 比第一个结晶微结构。 将粉末喷射沉积在沟槽内,在层和溅射靶材料之间形成明显的边界线。