Abstract: Some embodiments of the present disclosure relate to a processing tool. The tool includes a housing enclosing a processing chamber, and an input/output port configured to pass a wafer through the housing into and out of the processing chamber. A back-side macro-inspection system is arranged within the processing chamber and is configured to image a back side of the wafer. A front-side macro-inspection system is arranged within the processing chamber and is configured to image a front side of the wafer according to a first image resolution. A front-side micro-inspection system is arranged within the processing chamber and is configured to image the front side of the wafer according to a second image resolution which is higher than the first image resolution.

Abstract: A visual examining and training device includes a wearing unit that is suitable for wearing on a head of a user, that is configured to be disposed in front of the eyes of the user, and that has a main housing, and two lens adjusting units spacedly disposed in the main housing and each of which includes a lens carrier having a tubular member defining an inner space, a rotary lens holder assembly disposed in the inner space, two prisms coaxially disposed in the rotary lens holder assembly, a focal length adjusting lens disposed in the inner space spaced apart from the prisms, and a drive mechanism connected to the rotary lens holder assembly for driving the same together with the prisms to rotate. A control unit is signally connected to the drive mechanisms of the lens adjusting units for controlling operation of the same.