Vertical-stack packaging package stacking

Figure 5.13 Vertical-stack packaging designs. Source Irvine Sensors.

Because of their compact size, packaged vertical boilers can be custom-designed as a complete boiler plant system and simply shipped to the customer on a steel skid or platform. This type of system may comprise a dual boiler arrangement, with a pretreatment unit (water-softening and chemical-feed system), boiler blowdown and condensate return facilities, and also possibly a dual stack containing an economizer. This type of packaged system may reach 85% GCV efficiency. 

The palletisation of cases is probably the most frequently used safe method of transporting packaged product. There are certain factors that help, e.g. the load should not overhang the pallet perimeter, and must be stacked with the case edges on the perimeter vertically over each other to transmit the downward forces in the line of the strongest part of the case. 

Tube products use their own package as the mould. The tube is dispensed from a stack into a holder where it is held vertically by its rim. The liquid mix is dispensed into the tube, and the lid is picked up from a stack, placed on top by a vacuum sucker and heat-sealed onto the rim. The filled and sealed tubes are then frozen on a conveyor belt in the hardening tunnel. 

The advantages of stacked die packaging are further enhanced by using thinned die. Thinning die has the potential of enhancing first-level interconnect reliability while minimizing the increase in vertical profile. A silicon die with a thickness <100 jum is quite flexible and can relieve stresses induced by packaging and coefficient of thermal expansion (CTE) mismatch. ... 

Although these three classes of seismometers are markedly different in appearance, the internal sensing transducers and associated electronics are typically similar in design and performance. The difference is in the packaging and topology in vault seismometers, the three axes are normally side by side, in downhole seismometers the axes are often stacked vertically, and in OBS seismometers either topology can be utilized. Typically, downhole seismometers are packaged in tall cylindrical stainless steel... 

---