"entire" was added during reexamination at the USPTO in order to more clearly distinguish it from some prior art whose oscillator was not entirely on the same substrate as the cpu.
"entire" is included in all independent claims. Hence, if the respondents do not infringe on either the Staff's or respondent's construction, there is no infringement of the 336. Not because they do not infringe using either of those constructions. They win on a technicality.
Sorry, I exceeded your 2 sentence allowance.
Opty