Abstract: A device is provided that works in conjunction with conventional home furniture to comfortably support the head of a person who must remain face-down for extended periods of time. A rigid board having an opening in its center is supported above a flat surface by weight-bearing legs. The legs support the board above a support surface such as a bed, table or chairs. A thin-walled, under-inflated ring pillow rests on top of the rigid board. Rings of foam may be stacked on the board under the pillow to raise the pillow to a height appropriate to support the head in comfortable alignment with the spine. The openings of the pillow, foam, and board are aligned so that the patient may rest his face on the cushion and yet still breathe. The present device is used in conjunction with a bed for use while lying in a prone position, or is used in conjunction with a table or chairs for use while in a sitting position.

Abstract: Process of growing polysilicon on a plurality of deposition members grouped in a double ring, i.e., an outer circle surrounding an inner circle of members.