frame are not transmitted to the other frame. That is, the dynamics, e.g., motion, from one frame
are isolated from the other. In this light, and in view of the first definition for the term dynamic,
a more reasonable interpretation of the term dynamically isolated is that the dynamics are
isolated from one frame to the other - that the reaction forces from one frame are not transmitted
to the other frame. Note, that the proposed definition does not necessarily require structure in
between the two frames, but is merely descriptive of the relationship between the two frames.
Lee's involved '763 application supports such an interpretation of "dynamically isolated" frames.
For example, the '763 specification states that:
An additional aspect in accordance with the invention is that the reaction force of the
stage and window frame drive motors is not transmitted to the support frame of the
photolithography apparatus projection lens but is transmitted independently directly to the
earth's surface by an independent supporting structure. Thus, the reaction forces caused
by movement of the stage do not induce undesirable movement in the projection lens or
other elements of the photolithography machine (Ex. 2011 at 3, lines 4-9).
The above indicates that reaction forces, e.g., dynamics of the one frame, are not transmitted to
the other frame and are therefore "dynamically isolated." This definition for dynamically
isolated, that the reaction forces are isolated, is a more reasonable interpretation of the term
"dynamically isolated" given the description in Lee's '763 specification and the first listed
definition for dynamic as previously discussed. Van Engelen's definition of "dynamically
isolated", in contrast, is derived from van Engelen's involved specification, and by importing an
element into Lee's claim 2 that simply is not claimed. To the extent that the second alternative of
the count, i.e., van Engelen's claim 2, should be interpreted to mean that there are necessarily
"dynamic isolators" in between the two frames does not mean that Lee's claim 2, the first
alternative of the count should also be interpreted the same way. The count is the disjunctive
-15-
Page: Previous 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 Next
Last modified: November 3, 2007