1. Andrei Nomerotski 1 Flex Status & AID A.Nomerotski, 18 June 2010

2. Andrei Nomerotski 2 Outline  Flex status  Next steps  AID

3. Andrei Nomerotski 3 General Information  Flex u Accommodates 6 sensors MIMOSA26 u Dimensions 205.9 mm x 40.5 mm u Polyimide, 50 micron thick u Two metal layers, 17 um base copper s then plate another 25 um onto this surface copper and through the holes s Top: gold/nickel, wedge wire bonding compatible u Cover layer with total thickness of 50 um s 25 um polyimide film s 25 um acrylic adhesive  Connector: MOLEX 80 pins  6 ears for mechanical alignment, hole diameter 2 mm  Stiffener under connector 24.4 mm x 24 mm x 0.4 mm

4. Andrei Nomerotski 4 Connector  MOLEX 80 pins u 0.4 mm pitch, 1 mm height (when plugged) u Board part: plug Molex 502430-8010 u Flex part: receptacle Molex 502426-8010 u Gold plated, durable 30 cycles u 0.3 Amp/contact, 50 V max

5. Andrei Nomerotski 5 Flex Status  12 flexes received from Graphic u 8 in Oxford u 2 in Strasbourg u 2 in Bristol

6. Andrei Nomerotski 6 Issues with Flexes  Overetching of lines u 75  40 micron, Graphic not forthcoming to fix problems  Assembly QA in Oxford

7. Andrei Nomerotski 7 Other Flex Vendors  Same design sent for quotation to u Cicorel (Switzerland) u OptiPrint (Switzerland) u Datex Instruments (US)  Received quotation from OptiPrint u ~£2500 for 20 flexes – same as Graphic  We asked to repeat the quotation, ask if should contact french sales office if ordered through Strasbourg

8. Andrei Nomerotski 8 Assembly Procedure 1.Glue stiffener  Need a (simple) tool for precision 2.Solder components  Sometimes solder wicks under polyimide to bonding pads 3.Wash 4.Test (components, clock)

9. Andrei Nomerotski 9 Next Steps  Kapton flex u Check bonding u Check clock propagation u Decide how to proceed  Flex layout u Investigate variations of layout (Pete) s Mirrored design s Traces under M26 s Thinner traces(?)  Order from OptiPrint when PCB version is working u Order now?

10. Andrei Nomerotski 10 AID Layout  Draft 0 prepared by Stephanie Yang

11. Andrei Nomerotski 11 AID Layout

12. Andrei Nomerotski 12 AID: Plans  First sort out ladder movements then other things u Decide on degrees of freedom in Station 2 u Decide on orientation of ladders s Horizontal?  Buy several stages for characterization u Assemble one station?  Fix dimensions u Distance between ladders, angle, stations etc  How to accommodate other users?  Prepare full design u Cables u Light tightness u Monitoring u Target u Air cooling/ Temperature monitoring

13. Andrei Nomerotski 13 AID : Next Steps  Change vertical stage in station 2  Add rotation for one ladder in Station 2  FEA of standalone ladder to understand how rigid it is u Vertical orientation u Horizontal orientation u Different length, up to 25 cm? u Conclude if ladder needs a frame to support the other end  FEA of standalone ladder with frame  FEA of the whole ladder support