Abstract: The present disclosure relates to vapor deposition systems and methods. In one embodiment, a drum for vapor deposition is provided. The drum includes a shell having gas slits and a cooling drum. The cooling drum includes an exterior region, an interior region, a first fluid channel partially defined by the exterior region and the interior region, and a first inlet. The first fluid channel forms a helical channel around a central axis of the cooling drum. The first inlet is in fluid communication with a first outlet by the first fluid channel.

Abstract: A compact menu structure for computing devices with a small display screen. The menu structure reduces the number of menu panels displayed on the screen while still providing the user with a visible representation of the menu structure. In an embodiment of the present invention, an application program on a handheld calculator or other small screen computer device provides a compact menu structure that has a navigation bar and a single submenu panel. The navigation bar displays the menu tree for the menu displayed in the submenu panel. The navigation bar may wrap to multiple line for deep menu structures. Other embodiments include a sliding bar in the menu sub-panel for sub-panels that have more items than will fit in the sub-panel.