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I have been in electronics as a hobbyist in the past year and a half but still I come across some new things everyday. I have two questions regarding a pcb of a device that I have taken apart (picture below):

1.) Is that some sort of cover/paste for the main chip of the pcb? I have seen this thing in many circuits now (black, white) and I am curious what it is - I guess this is not the shape of the chip itself?

2.) What is the purpose of those copper "circles"? They are not vias since they don't have any holes.

enter image description here

Thank you for your answers in advance!

EDIT: Thanks for the attached links/replies. If someone is interested in the manufacturing process of these chip-on-boards, here is a link that I found: https://learn.sparkfun.com/tutorials/how-chip-on-boards-are-made

PhysicsTeacher
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    The copper circles are usually test points for automated test, manual test or debugging of notable traces in the circuit. – Reinderien Aug 12 '17 at 01:28
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    Your first question is answered here: [What kind of components are black blobs on a PCB?](https://electronics.stackexchange.com/questions/9137/) – The Photon Aug 12 '17 at 01:35
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    The second one is answered here: [What use do these round pads have on PCB?](https://electronics.stackexchange.com/questions/173068/) – The Photon Aug 12 '17 at 01:38

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