i-type semiconductor

20 LETTERS · STARTS WITH I

i-type semiconductor is a valid 20-letter word worth 30 points in Scrabble and 35 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

I1-0T1Y4P3E1S1E1M3I1C3O1N1D2U1C3T1O1R1

1 + 0 + 1 + 4 + 3 + 1 + 0 + 1 + 1 + 3 + 1 + 3 + 1 + 1 + 2 + 1 + 3 + 1 + 1 + 1 =30 PTS

DOUBLE WORD → 60TRIPLE WORD → 90

MEANING

What does i-type semiconductor mean?