A method including forming a via dielectric layer on a semiconductor
device substrate; forming a trench dielectric layer on the via dielectric
layer; forming a trench through the trench dielectric layer to expose the
via dielectric layer; forming a via in the via dielectric layer through
the trench to expose the substrate; and forming a semiconductor material
in the via and in the trench. An apparatus including a device substrate;
a dielectric layer formed on a surface of the device substrate; and a
device base formed on the dielectric layer including a crystalline
structure derived from the device substrate.