Misleading Package Size: Difference between revisions
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* When CDs were first sold they came in boxes 3-4 times bigger than the disk. This was meant to help prevent shoplifting.
** This one has been zigzagging, with "normal" CD cases (5mm thick with often a booklet), shrinking to thin CD cases (half the thickness, never a booklet), and growing back to DVD cases (width, height, and half the thickness of a VHS).
* Integrated circuit "chips" are often manufactured in multiple forms where two or three different versions of the part have the same circuitry inside, but are widely different in physical size. This usually includes one or two tiny form factors (some version of surface-mount or ball-grid array) intended for products assembled by automated machines, and a larger version of the same part (sometimes with the connections all spaced 1/10th or 1/20th of an inch apart) which is large enough to be soldered to a circuit board by hand. This "package" is a permanent part of the component.
** These parts are then subject to further packaging into reels, tubes, trays, boxes for distribution – with that intermediate packaging discarded when the chips are soldered to the board.
** That plastic anti-static tube full of small computer chips will then be placed in a small antistatic bag or two, then placed into padding or bubble wrap for shipping, then placed into a cardboard box... largely for protection from static electricity or mechanical damage, but even the tiniest speck of a component attracts many times its own weight in packaging material. Order one resistor (which in surface-mount is commonly 0.080" x 0.050" or smaller) and see how much extra packaging is placed around it before the part actually gets shipped. :)
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