Looking on the internet deeply has found these results:

micron is the most popular phrase on the web.

micrometer 112,900,000 results on the web	micron 189,800,000 results on the web More popular!
Some examples and use cases from the internet:	Some examples and use cases from the internet:
As you go farther down this scale here, that's a micron, or a micrometer, and we go all the way down to here to a nanometer and an angstrom. pyrogenic, low protein line, sterile, non The system consists of small, straw Use only an infusion set with an in like porous microscopic tubes 1 micrometer in length and 1 nanometer in diameter made of pure carbon and groups of chemicals which are able to capture carbon dioxide. And just to give you a sense of the scale of the motions here, a pretty loud sound will cause that bag of chips to move less than a micrometer. So the way the Apollonian personality takes a picture or hangs a picture is, they'll get out a transit and a laser level and a micrometer.	It doesn't look like this phrase is very popular! The search could not find any examples on the internet.

micrometer

112,900,000 results on the web

micron

189,800,000 results on the web

More popular!

As you go farther down this scale here, that's a micron, or a micrometer, and we go all the way down to here to a nanometer and an angstrom.
pyrogenic, low protein
line, sterile, non
The system consists of small, straw
Use only an infusion set with an in
like porous microscopic tubes 1 micrometer in length and 1 nanometer in diameter made of pure carbon and groups of chemicals which are able to capture carbon dioxide.
And just to give you a sense of the scale of the motions here, a pretty loud sound will cause that bag of chips to move less than a micrometer.
So the way the Apollonian personality takes a picture or hangs a picture is, they'll get out a transit and a laser level and a micrometer.

It doesn't look like this phrase is very popular! The search could not find any examples on the internet.