Abstract: A method of forming a particle trap on a sputtering chamber component comprises forming a first pattern on at least a portion of a surface of the sputtering chamber component to form a first patterned top surface, and forming a second pattern on at least a portion of the first patterned top surface.

Abstract: A sputtering chamber particle trap comprises first and second patterns formed on at least a portion of a surface of the particle trap. The first pattern includes one of: first indentations having a first depth and separated by first and second threads, and first ridges having a first height and separated by first and second grooves. The second pattern is formed on at least a portion of the first pattern and includes one of: second indentations having a second depth and separated by third and fourth threads, and second ridges having a second height and separated by third and fourth grooves. A method of forming a particle trap on a sputtering chamber component is also disclosed.

Abstract: A sputtering chamber particle trap comprises first and second patterns formed on at least a portion of a surface of the particle trap. The first pattern includes one of: first indentations having a first depth and separated by first and second threads, and first ridges having a first height and separated by first and second grooves. The second pattern is formed on at least a portion of the first pattern and includes one of: second indentations having a second depth and separated by third and fourth threads, and second ridges having a second height and separated by third and fourth grooves. A method of forming a particle trap on a sputtering chamber component is also disclosed.

Abstract: Disclosed herein is a sputtering chamber component comprising a particle trap, the particle trap comprising a patterned macrotexture formed on at least a portion of a surface of the sputtering chamber component. The patterned macrotexture has indentations having a depth and is arranged in a repeating pattern. The patterned macrotexture has first threads extending in a first direction, the first threads forming side walls separating adjacent indentations in a second direction. The patterned macrotexture has second threads extending in the second direction. The second direction is at an angle of greater than 0 and less than 180 degrees to the first direction, the second threads forming side walls separating adjacent indentations in the first direction. The patterned macrotexture has a random pattern microtexture formed on the patterned macrotexture; the microtexture has a height less than the depth of the indentations.

Abstract: Near net shape heat spreader components are disclosed that comprise at least one pressure-treated powder material. Heat spreaders are also described that include at least one near net shape heat spreader component, and at least one additional part. Methods of forming heat spreaders are also described that include: a) forming a base portion comprising a pressure-treated powder material and having a first surface comprising a perimeter region surrounding a heat-receiving surface; b) forming a frame portion comprising a second material; and c) joining the base portion and the frame portion.

Abstract: A two-part pile splice forming a pile protector and reinforcer and a method for reinforcing a deteriorated wood pile under a bridge wherein a first pile-protector and reinforcer-member having a flange is positioned on one side of a deteriorated wood pile with the flange located parallel to the flow of water under the bridge, and a second pile-protector and reinforcer-member with opposite flange is positioned on the opposite side of the wood pile with the flanges of the second pile protector and reinforcer spaced from and parallel to flow of water under the bridge. The pile protector and reinforcers are squeezed around the pilings to form a mechanical link thereto but not crash the wood piles and an epoxy which provides the compressive strength for the wood pile is filled into those areas in which the wood pile has voids.