Pros
ON Semiconductor serves a large market of integrated semiconductors. Think of it as a mini-TI. Plenty of internal opportunities are available.
Cons
HR policies are cheap, stingy and outdated. Technical individual contributors are not recognized with compensation; even if they have years or decades providing results beyond their pay-grade. Policy for raises are 10% max. Raises at most once a year but more likely every 5 years. Degrees are needed for promotions: i.e. technician to engineer. Degrees do not equal immediate promotions. You might have to wait; you might not even get a promotion. Bonuses do not apply to most employees, only the top engineers and management. You can get a "Bravo Award" bonus but only if your manager goes to bat for you.