Abstract: A method of Atomic Precision Advanced Manufacturing (APAM) is provided, in which a substrate is doped from a dopant precursor gas. The method involves covering a surface of the substrate with a hard mask, selectively removing material from the hard mask such that selected areas of the substrate surface are laid bare, exposing the laid-bare areas to the dopant precursor gas, and heating the substrate so as to incorporate dopant from the dopant precursor gas into the substrate surface.

Abstract: An improved continuous casting mold and means for securing the mold liners wherein vertical cooling water passages which in cross-section present a dovetail configuration are machined in the back side of the mold liner plates. The cooling water passages are all of substantially equal dimensions and are equally spaced along the length of the mold liner plates. Corrosive resistant bars having beveled edges to match the dovetail passages are inserted into the water passages. Tapped holes in the bars receive hold down bolts which pass through the bars between the formed water passages and thus do not interfere with uniform heat transfer.

Abstract: A roller assembly for such as supporting a strand of metal cast in a continuous casting machine is disclosed as having a shaft adapted to be journaled in supporting arms at axially spaced locations along the shaft. A plurality of axially spaced bearings are mounted on the outer periphery of the shaft. A plurality of axially spaced cylindrical shells are provided with each mounted on the outer periphery of a pair of bearings. At least one axial end of the shaft is bored to define at least four axially inwardly projecting lubricating passages to the bearings. A lubricant measuring and distributing valve assembly is mounted on the bored end of the shaft. The valve assembly has a body defining two lubricant inlets and four outlets aligned with the four shaft passages. Each of the inlets alternate in delivering lubricant to a pair of flow regulating valves.