Press Release

Alpha Stockholder Action Clears the Way for 2-For-1 Stock SplitWOBURN, Mass.--(BUSINESS WIRE)--March 29, 2000--Alpha Industries (NASDAQ:AHAA) today announced that its shareholders have voted to increase the company's authorized shares to 100 million, thereby allowing the previously announced 2-for-1 stock split to proceed. After the split, which will be paid on April 19, 2000, Alpha will have approximately 40 million shares outstanding.

The stockholder vote at a Special Meeting of Stockholders on March 28, 2000 approved an increase in the company's authorized shares from 30 million to 100 million. Alpha's Board of Directors approved the split in the form of a stock dividend on January 27, 2000, subject to yesterday's stockholder action. Stock certificates representing one additional share for each share held will be mailed on or about April 19, 2000 (the payment date) to all stockholders of record at the close of business on March 29, 2000 (the record date).

Alpha Industries designs, develops, manufactures and markets proprietary radio frequency, microwave frequency and millimeter wave frequency integrated circuits and discrete semiconductors for wireless voice and data communications. The primary applications for Alpha's products include wireless handsets for cellular and personal communications services, or PCS. Alpha also produces integrated circuits, discrete components and ceramic resonators and ferrites used in wireless base station equipment, cable television, wireless local loop, wireless personal digital assistants and wireless local area networks. Additional information is available at Alpha's Website -www.alphaind.com.

CONTACT: Alpha Industries, Inc.

James C. Nemiah, Investor Relations

617/824-4426