As someone who saw a dust cloud from my balcony from a nearby ballistic strike (in addition to nearby buildings getting hit by Shahed debris) I don't think financial penalties alone are a good solution. A real solution would require all executives at US semiconductor companies whose products have been found in russian weaponry to be sent to mandatory live-in community service in Ukraine for a period of at least 24 months.
Live in community service would include de-mining work, repair work in Chernobyl power station shelter, junior janitor work in military hospital and frontline aid services (they can help distribute aid to older citizens near the frontline, perhaps even do tech device repair work and support). Reviews of high end restaurants in Kyiv does not count as community service.
The undeniable evidence of their criminal negligence can be seen all around Ukraine. Then there is an issue of framing. Imagine a hypothetical US-based fentanyl precursor manufacturer being found to be in-directly supplying the Sinaloa cartel. If they don't have connections to senior corruption structures, the attitude towards them in the US (be it the public or the courts) would be completely different from how semiconductor executives will be treated in this case.