Geometrical and mechanical datasheet of pentium4 on their website. From memory, flatness should be less than 0.05mm all over the IHS area, some IHS are far from this requirement.
EDIT : Found it in my docs, see the attachment. First symbol refers to flatness (real surface must be enclosed between 2 parallel surfaces separated by 0.05 mm), second symbol is parallelism condition with the lower surface A.
Last edited by Roscal; 07-06-2005 at 05:59 PM.
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