Good Morning JeffD,
I was very surpized to see these Shin-Etsu Handotia buckets way out there on the east-side US.
I worked for SEH Ammercica in Vancouver WA for 7 years, 1990-97.
As crude just-do-it, good-enough as I may come accross . . . at SEH everything was in ppb, microns and sub-microns. Semi, Clean, to Super-Clean artificial working environments. Robots galore. CNC processes as much as they could do it.
With surprisingly the experimental and developmental works all done by hand.
Very, very much if you postulated it. First you had to peer-groups prove potential advantages before leaping onward. Failures would get you shame-ribooned (a Japanese thing)
Hammered home the true human cost for cheap affordable consumer gee-gaw electronics. 12-15 hour shifts (for go-getters) were long term very health wearing down on us all.
Other than the cow dairies I began on SEH was the place I got the most bacterial and viral infections. “Clean” was for particles and any and all metalics and undesirable chemical contaminets into the silicon products.
So we were only allowed Simple Green and isopropanol alcohol for all cleaning. Ha! My area would spawn out tiny biting fly gnats from the always wet utilities trenches. They would only come out in mid-graveyard shift. Any one of us with an infection was then vectored onto most everyone else in the area. Sigh. Needed a strong toxic fumigation. Never approved.
In contrast all of my years in dirty greasy, oily mechnic’ing and DC electric; I very seldom got sick. Microbes cannot tolerate the petrochemicals, lead metalics and battery acids!
Human cells not happy either. Cuts, scrapes always slow to heal. But with never infections!
Bit slow picking up on the SEH made-in-Japan buckets. Bit out of it with some recent oral surgery.
Lukoplacia in my mouth back in the early 1990’s was my really first startle awake timeline calling up.
Ha! Ha! I am still here. You be too, man for as long as the gettin’ is still good for you.
tree-farmer Steve Unruh