Crossword clues for the word: LSI The word LSI has appeared as an answer to at least 5 crossword clues on different crossword puzzles. Crossword clues for LSI Showing 1 to 5 of 5 results Clue(s) California-based semiconductor company founded in 1981 (hidden in FALSIFY) Electronic-circuit tech. Kind of computer chip (Abbr.) Long-running B'way musical seen by couples? The fitting of semiconductors onto tiny chips: abbr.