Onsemi Discloses Offer to Acquire Allegro MicroSystemsPower-and-sensor chip company Onsemi has made multiple attempts to pursue Allegro in recent months By Sherry QinOnsemi makes about half its revenue from automotive customers. Photo: ReuterSScottsdale, Ariz.-based On Semiconductor, also known as Copyright 2025 Dow Jones & Company, Inc. All Rights Reserved. 87990cbe856818d5eddac44c7b1cdeb8VideosMost Popular NewsMost PopularOPINIONRecommended VideosAdvertisement