Other

Primary Systems Corporation

Sidney Braginsky

Russell A Houser

A stent apparatus and its use is provided comprising a substantially tubular member with an inside surface and an outside surface; and a securing element for securing the tubular member to the exterior of a body lumen. The method for implanting the stent to the exterior of a body lumen comprises providing for an exterior stent, inserting the stent around a desired location on the exterior of the lumen, and providing for controlled expansion of the lumen such that it contacts the stent sufficiently to secure it to the lumen.

Exterior stent and its use

An apparatus for inspecting semiconductor, or other types of, wafers is disclosed. The apparatus uses a robot arm to move wafers from an incoming location to an inspection location, and then to an outgoing location. The robot arm may be supported on a floating platform to prevent mechanical chafing and resulting contamination. The robot arm is constructed to have a free end which moves laterally, but not vertically. The arm may be retractable to reduce wobble when the wafer is being inspected. A wafer in the inspection position is inspected by scanning with an objective lens coupled to an associated optical system. If desired, an automatic discrimination system can be coupled to the optical system to permit discrimination between acceptable and non-acceptable wafers. The objective lens may face upwardly and the wafer downwardly to urge contaminants to fall from the wafer. The inspection apparatus may be mounted on a table and shielded by a housing over the table to maintain the cleanliness of the inspection environment.

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Dix Hills, NY, United States of America

Sidney Braginsky