formula for a compound of elements number 15 and 39 that is used in making high speed transistors — Crossword Clue

What is the answer to the crossword clue „formula for a compound of elements number 15 and 39 that is used in making high speed transistors“. We have found 1 Answers for: „formula for a compound of elements number 15 and 39 that is used in making high speed transistors“. Try to find some letters, so you can find your solution more easily.