By default I'd assume most chips don't get serialized (their package may have a date/lot code). The article doesn't say what the chip is, so I don't think there

By default I'd assume most chips don't get serialized (their package may have a date/lot code). The article doesn't say what the chip is, so I don't think there's a reason to think that it's one of the types of chip that does usually get a unique ID.