Parallel placement

Research has shown that the latest implementation of parallel placement technology, used in combination with a reel-to-reel transport system, is suited to highly efficient implementation of these flex-foil reel-to-reel applications (Figure 1). 

Conventional dome-placement systems require a mechanism to detect double domes, but pick-up nozzles in the parallel placement system can be equipped with laser and vacuum sensors to detect double domes, and to check that the dome is placed correctly. The presence of the dome is checked during movement to the placement position, and the nozzle design ensures that the dome is supported fully for protection during placement. 

Accuracy, placement speed and high uptime make the parallel placement type of pick-and-place machine competitive for dome placement. For example, parallel operation of ten placement robots on a single platform achieves a maximum machine throughput greater than 42,000 domes per hour (or more than 84,000 domes per hour if the platform is populated with the maximum number of robots). 

Given the required accuracy and placement quality, current pick-and-place equipment can he adapted for reel-to-reel applications. Parallel placement technology with walking beam transport provides opportunities for customization of reel-to-reel requirements. Simultaneous pick-and-place functions also achieve the high speed required for a competitive solution. 

Heat transfer and friction are reduced by placing tubes in parallel. If neither factor is critical, either parallel or series placement is feasible. Series arrangement will be trombone type because of the great length. 

Figure 7 illustrates the sensitivity of the current distribution to electrode placement for two similar interdigitated designs. In the parallel row design, alternating rows of cylindrically shaped cathodes and... 

Select an appropriately sized meat sample (at least 1 -cm thick) to allow placement within the sample port of the benchtop colorimeter, or to permit placement of the hand-held colorimeter directly on the sample surface. Additionally, select a proper control sample to prepare in parallel. 

If the chain backbone contains atoms that are unsymmetrically substituted, then stereochemical variability becomes possible. Stereochemical copolymers have repeat units that are chemically identical but stereochemically different, and in a sense these parallel the chemical copolymers already described. If substituted skeletal atoms in adjacent repeat units have the same atomic configuration, then the placement is said to... 

Self-assembly is a massively parallel process, and can normally involve very large numbers of components (a large crystallization might involve 1027molecules). Robotic pick-and-place methods for placement are limited by the fact that they are serial. Although they can be accelerated by using a number of robotic devices in parallel (for example, the multiple scanning probe heads of the IBM millipede 131), they cannot approach the number of molecules in a test tube, for example. 

A top view of a focal plane array is shown above. Metallic traces 24 are aligned parallel to the focal plane array scan axis. Each of the metallic traces is terminated at a peripheral portion of the array with a contact pad 42 having an indium bump interconnect 44 disposed thereon. The placement of indium bumps separately from the active areas of the focal plane array permits these to be shielded from the scanned radiation. Unwanted reflections from the contact pads and the indium bump interconnects are therefore reduced or eliminated. 

For efficient removal, these plates should ideally be placed at the point at which ions attain their tightest temporal and spatial focus prior to detection. Although deflection of this type would be challenging with a swept-beam geometry, the space focus plane of the two-stage acceleration design offers an excellent opportunity to deflect the maximum number of ions over the shortest distance in the shortest time. This placement also ensures the most resolution of mass deflection. For an ICP-TOF-MS, the efficiency of removal for this parallel-plate scheme was promising [24]. 

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