Abstract: Methods for centralized access control for cloud relational database management system resources are performed by systems and devices. The methods utilize a central policy storage, managed externally to database servers, which stores external policies for access to internal database resources at up to fine granularity. Database servers in the processing system each receive external access policies that correspond to users of the system by push or pull operations from the central policy storage, and store the external access policies in a cache of the database servers for databases. For resource access, access conditions are determined via policy engines of database servers based on an external access policy in the cache that corresponds to a user, responsive to a resource access request from a device of the user specifying the internal resource. Data associated with the resource is provided to the user based on the access condition being met.

Abstract: A cassette of conventional form is loaded with a plurality of semiconductor wafers having indexing flats of the known type and placed over three parallel rollers rotatably secured to a frame. The three rollers include a center roller and two side rollers positioned only slightly higher than the center roller such that their rotary motions can be communicated to the wafers by contact, depending on the position of the individual indexing flats. The indexing flats are roughly aligned in downward directions first by rotating only the center roller and after all three rollers are rotated to bring the indexing flats in upward directions, the wafers are more accurately aligned in a downward direction by rotating only the center roller and all three rollers are rotated thereafter for a predetermined period of time, depending on the desired angular position of the indexing flats.