Brooklyn Technical High School

Donald L. Klein, Ph.D. '49
Silicon Gate Transistor Inventor

The leader of the team at Bell Telephone Laboratories that created the polysilicon Field-Effect Transistor in 1966, Dr. Klein’s advance has been the key to very large scale integrated circuits and the advancement of computers and communications technologies. The innovative breakthrough was to employ polycrystalline silicone in a self-aligned process to replace the previously used thin metal films. It has become the standard process for manufacturing all silicon semiconductor memory and microprocessor circuit chips.

College Visits

This year's College Visits have concluded:
to see a list of Confirmed College Visits for Fall 2008
please check back starting after August 2008

Students interested in college conferences must come to the College Office, Rm. 1N1 to pick up coupon passes for their teachers to approve if a conference takes place during one of your class periods. Conferences will be held in Room 1N1, unless, otherwise, posted


Welcome to Brooklyn Technical High School! Juniors are to be reminded that the College Questionnaire is due to your guidance counselors by no later than Wednesday, May 7th. Also, all juniors and their parents are urged to attend the Brooklyn Tech College Fair on Saturday, May 3rd beginning at 12:30pm in the student cafeteria.