 WILMINGTON, Mass.--BUSINESS WIRE-- IRconference--Onto Innovation, Inc., NYSE: ONTO today announced that Michael Plisinski, chief executive officer, and Michael Sheaffer, senior director of investor relations and corporate communications, will participate in the Jefferies Virtual Semiconductor, IT Hardware and Communications Infrastructure Summit being held August 31 September 1, 2021. Onto Innovation management is scheduled to participate in one-on-one meetings on Wednesday, September 1, from 8:00 a.m. 