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TO-220: Through-hole plastic package with a (usually) metal heat sink tab and three leads; TO-226 [23] TO-247: [24] Plastic-encapsulated package with three leads and a hole for mounting on a heat sink; TO-251: [24] Also called IPAK: SMT package similar to the DPAK but with longer leads for SMT or TH mounting
Some packages and labels also are used for track and trace purposes. Most items include their serial and lot numbers on the packaging, and in the case of food products, medicine, and some chemicals the packaging often contains an expiry/best-before date, usually in a shorthand form. Packages may indicate their construction material with a symbol.
A modern example of multi-chip integrated circuit packages would be certain models of microprocessor, which may include separate dies for such things as cache memory within the same package. In a technique called flip chip , digital integrated circuit dies are inverted and soldered to a module carrier, for assembly into large systems. [ 8 ]
Food packagers take extra care with some types of active packaging. For example, when the oxygen atmosphere in a package is reduced for extending shelf life, controls for anaerobic bacteria need to be considered. Also when a controlled atmosphere reduces the appearance of food degradation, consumers need to retain a means of determining whether ...
The integrated circuit package must resist physical breakage, keep out moisture, and also provide effective heat dissipation from the chip. Moreover, for RF applications, the package is commonly required to shield electromagnetic interference, that may either degrade the circuit performance or adversely affect neighboring circuits.
Code from other packages is accessed by prefixing the package name before the appropriate identifier, for example class String in package java.lang can be referred to as java.lang.String (this is known as the fully qualified class name). Like C++, Java offers a construct that makes it unnecessary to type the package name (import).
A package may contain other packages, thus providing for a hierarchical organization of packages. Pretty much all UML elements can be grouped into packages. Thus, classes, objects, use cases , components , nodes , node instances etc. can all be organized as packages, thus enabling a manageable organization of the myriad elements that a real ...
A customer benefit package (CBP) forms as a part of the operations management (OM) toolkit. It involves a clearly defined set of tangible ( goods ) and intangible (services) features that the customer recognizes, purchases, or uses.