The making of a chip
“The transistor is arguably the most significant invention of the 20th century. A human hair is about 70 microns. A micron or micrometer (represented as µm) is a unit of measurement equal to one millionth of a meter or one thousandth of a millimeter. 50-micron chip technology requires doping of silicon, creating P-N semi-conducting structures in substrates and finally leadframe wire bonding of the die.”