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HMC476MP86 List of Materials for Evaluation PCB

I read HMC476MP86 Datasheet.

Is "0603 Pkg" the same meaning as "0.0236inch × 0.0118inch"?
Or does "0603 Pkg" mean "0.6 mm x 0.3 mm"?
Can I also do the same interpretation about other parts?

Please advise.