large value resistors

[Martin Czech]

:::> 
:::> > 1 megamegohm (1,000,000,000,000 ohms)
:::> > 
:::> Tetraohms.  I didn't even know they made these that high.
:::
:::Does that make any sense in normal environments? I'd expect even the
:::resistance of air humidity to be below that...?
:::
:::But maybe those components are only usable when sealed. And probably after
:::weeks of doing flux removal...

Bob Pease: What's all the femtoampere stuff anyhow?

Obviously one can go down to femtoamperes with normal plastic packages...

m.c.