Doug, earlier you made a bold statement, "the heat spreader doesn't really help the die temperature".
And later you clarified your statement: "Actually, they don't. The real purpose is to protect the die".
I merely pointed out that your first statement is not true or false, and the answer depends on the category of heatsinks employed. Your later "clarification" clearly clarifies that this principally-important distinction has escaped your attention. If some things has escaped your attention, it is ignorance in the subject, by definition.
dictionary.reference.com
I think the sub-definition #2 is directly applicable here.
More, Pravin was talking about "a good heat spreader between die and heatsink", without any additional qualifier. If taken more generally, "a good heat spreader" may include industrially-available materials like diamond-metal composites, or "isoskin" type spreaders with even better conductance. In this case your first statement would be unconditionally false.
I guess I can put more pgerassisms (like the above) on you if you are ready.
I encourage you to make some effort to understand what I said about heat spreaders, and two different class of heatsinks. If you are still confused, then your "mere university degree" is clearly no match for my doctorate degree in the very same field, and 30+ years of research and industry experience, including the last decade in the U.S. semiconductor industry.
Have a nice day,
- Ali |
