The CPU packaging is the material that the literal silicon is mounted on and sealed with. The CPU pins go through it. Sometimes there is a metal heat spreader attached to it. It&#x27;s not the plastic wrap and box product packaging.<p>Wikipedia has some good photos of the UltraSPARC II CPU packaging: <a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;UltraSPARC_II" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;UltraSPARC_II</a>