Onto Innovation Inc. provided earnings guidance for the second quarter of fiscal 2021. The Company is currently anticipating revenue for the second quarter of 2021 to be in the range of $173 million to $184 million. This guidance assumes that the safety protocols in place continue to limit the impact of COVID-19 on factories and suppliers. Within this revenue range the Company is expecting GAAP net income per diluted share to be in the range of $0.58 to $0.67.