Yes, they own the record with 9 NCAA tournament wins

in a row. A number of schools have won 8 in a row.

Boston College is the most recent, winning 8 in a row in 2008 and 2010. They missed the tourney in 2009.

Minnesota won 8 in a row from 2002-2004 with three wins to claim the title in 2002 (the last year of the 12 team tournament), 4 to win it in 2003 and then beating Notre Dame in 2004 before falling to... Minnesota Duluth in the Midwest Regional final.

Denver also won 8 in a row in claiming back-to-back titles in 2004 and 2005. They failed to make the tournament then for 2 seasons before losing their next NCAA tourney game in 2008.

North Dakota won 8 in a row from 1980 through 1984 before losing in the Frozen Four to... Minnesota-Dulluth. That includes wins in a 2-game total-goal series in the opening (quarter-final) round in 1984 as well as in 1982 in their run to the title.

If you want to count the old consolation game they used to play in the final four, Michigan once won 7 in a row from 1950-1953.