I don't think this is true. There were a couple of academic studies showing that low doses of LSD (~25 mics) improved creativity during the session, but I don't think there have been any studies showing that a normal dose improved creativity the next day.
FYI The book What The Dormouse Said talks about the influence of LSD on the technology industry.
FYI The book What The Dormouse Said talks about the influence of LSD on the technology industry.