Finished microchips are stored and shipped in layers of film on reels, like classic movie films.
Take a look at one of millions of actual packaging specifications for one actual SOIC device here. Many marketing, sales, drawing, writing, materials specialists and management are required to make sure all of these specifications match up in the real world.
Microchip Packaging - Encapsulation
Semiconductor chips are placed on metal leadframes (legs) and then filled with plastic to form the bodies.