A kit for testing the integrity of sterile tubing welds made by a sterile tubing welding machine employing welding wafers includes a plurality of tubing samples, and a container having a series of receptacles for holding the tubing samples and the wafers used in the sterile tubing welding machine. A set of instructions is provided for making the sterile tubing welds with the tubing samples in the container, and a data sheet is included for recording particulars of the kit and reporting a weld an...

A technique for detecting whether a package has been tampered with or altd. A package is first coated with a transparent material, such material having bubbles or particles of random size and/or spacing trapped within it. A hologram is then made of the package with the bubbled coating, showing the spacial relationship of the surface of the package and the bubbled coating. At the destination of the package, the package is viewed through the hologram to detect any change in the spacial relationshi...

A method of and apparatus for determining the visual integrity of an individual is disclosed. An equal amount of visible light intensity is provided to the right and left eyes by viewing a target through a binocular viewing mechanism. The eyes of the individual are adapted to the equal intensities of light for an adaptation period and the individual then adjusts the light intensity until the perceived light intensity in each eye is equal. The difference between the light intensities provided to ...

A signal integrity checking circuit for an integrated circuit detects whether signal condition involving loading of data into storage elements is valid or improper and flags the result. The integrity circuit includes a plurality of adjacently positioned and substantially similar storage elements, which are clocked by a common clock line and loaded from a common data input line. A common reset line may also be provided. The storage elements may be flip-flops, latches, RAM, etc. A logic gate, such...

The present invention is a system for providing GPS users with a high level of confidence in the integrity and accuracy of received GPS signals. The system provides a means for each GPS satellite itself to verify the accuracy and/or integrity of its own operations by calculations and processing internal to the GPS satellite and by crosslink communications with other GPS satellites in the GPS constellation. After a GPS satellite verifies the accuracy and/or integrity of its own signals, the GPS s...

Cache memory, and thus computer system, reliability is increased by duplicating cache tag entries. Each cache tag has a primary entry and a duplicate entry. Then, when cache tags are associatively searched, both the primary and the duplicate entry are compared to the search value. At the same time, they are also parity checked and compared against each other. If a match is made on either the primary entry or the duplicate entry, and that entry does not have a parity error, a cache "hit" is indic...

A structure and method for determining barrier layer integrity for multi-level copper metallization structures in integrated circuit manufacturing. Novel testing structures prevent any conducting residues of the copper CMP from diffusing into the dielectric layer. Barrier layer integrity is tested by performing CV or IV measurements between the copper lines and the silicon wafer.

A technique for maintaining referential integrity between data records in any data architecture in which only a single copy is kept of any particular data record. The technique includes providing the ability to bind a data record to a parent data record by storing the data record in a manner associated with the parent record. If the data record then is bound to other parent data records, a link reference is used that is stored in an attribute of the data record, rather than associating another c...

A method for inspecting the integrity of diesel exhaust filter by introducing air under pressure through one end of the structure and detecting the presence of air flow at an opposing end surface. The diesel exhaust filter is tested green.

Apparatus for testing electrical wire bonds of semiconductor devices includes two unequal length cantilever arms (14a, 14b) on a baseplate (11) and a test head (15) at the free end of the arms. The arrangement ensures substantially frictionless straight line movement of a test hook (32) on the text head over the range of deflection expected. A pneumatic or magnetic (21, 22) frictionaless damper is disclosed. The test hook (32) may be orientated by a stepper motor (35) of the test head.