Sortostat/Foundry report card

Chips received 12/12/06

• The valves did not seal completely in this batch at 20psi.

example of incomplete sealing

Chips received 4/3/07

• A - collapsed valves on both reactors (~6 each)
• B - 1 reactor with collapsed valves (~2) and one without (that seems to be working great so far).
• C - both reactors didn't have collapsed valves, however 2 of the port holes weren't drilled, so reactors were unusable. (must have gotten missed)

Chips received 5/24/07

• A1 - push up layer alignment is somewhat off-center, may still be usable
• A2 - push up layer alignment is somewhat off-center, may still be usable
• B1 - push up layer alignment is very off-center, UNUSABLE.
• B2 - looks OK; this is surprising considering the status of B1 (these are on the same chip so shouldn't be very independent if there isn't warping of the layer...)
• C1 - push up layer alignment somewhat off center (worse than C2), may still be usable (though the sorting chamber doesn't look great so probably not worth using).
• C2 - push up layer alignment is somewhat off-center, sorting chamber looks OK, likely usable.
• D1 - looks fine, thought there is a 'dimple' in the feed line on the right hand side of the reactor.
• D2 - looks very good - used this for 5/29/07 run

Chips received 7/9/07

• C1 - looks perfect
• C2 - push up layer is shifted to the right heavily; unusable
  • This is indicative of warping of the layer or something, since it shouldn't be OK for one reactor and totally off for the other on the same chip.
• D1 - unusable, push up layer is off center
• D2 - looks good, not as good as C1 but almost certainly usable