GLAST LAT ProjectFeb. 17, 2004 Hartmut Sadrozinski: TKR Flex Cables 1 TKR Flex Cable Issues addressed TKR Flex Cable Issues addressed Mechanical 1.Grid.

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Presentation transcript:

GLAST LAT ProjectFeb. 17, 2004 Hartmut Sadrozinski: TKR Flex Cables 1 TKR Flex Cable Issues addressed TKR Flex Cable Issues addressed Mechanical 1.Grid – Flex Cable Interface 2.CTE mismatch Tower – Grid (introduce loop) 3.Cable – Wall interference: move resistors 1.Cactus arm resistors on wall side, all other on TEM side 4.Cable – TEM interface (take out loop) 5.Stiffener at D connectors (TEM side) see below 6.Assembly Procedure (NO pre-bend, but needs more meat) 7.Bend Tool for Cactus arms (existence proof only) Electrical 1.Doubling Vias 2.Via Stay-clear in Bend Area 3.Resistors to Improve GTRC margins (out) 4.Resistors to Improve Polyswitch Functioning (in)

GLAST LAT ProjectFeb. 17, 2004 Hartmut Sadrozinski: TKR Flex Cables 2 Docs for C0 Proto Flight Order LAT-DS Flex-circuit Cable Schematic Diagram LAT-DS Flex-circuit C-0 Mechanical Layout LAT-DS Tracker Tower Flex-circuit Cable C-0 Assembly LAT-DS Gerber Files for Flex-circuit C-0 LAT-DS TKR Flex cable Stiffener LAT-TD-xxxxAssembly Process for Proto-flight Tracker Flex Cable Nano Connectors Numbers to order 11 assembled, 3 bare: Assembled (8 + 1 spare) = 9 INFN for Tower Testing 2DAQ Bare (delivery when fab’d) : 3 SLAC

GLAST LAT ProjectFeb. 17, 2004 Hartmut Sadrozinski: TKR Flex Cables 3 To be Done To be Done Coordination: Jerry Clinton, Parts: Jeff Tice Mechanical Layout: Tim O ’ Heron, Electrical Layout: Dave Nelson 1.C0: 1.draw LAT doc number for Stiffener Gerber file, change dimensions in mech. Drawings 2.Make corrections in assembly drawing 3.Update “ Assembly Process ” with resistors, and RPJ comments 2.C1 – C7 Layout: Same Interface with Grid 1.Problem Area: C4-C5 Stay Clear on Top 3.Start PO for Flight Order now 1.Specs and SOW are signed – off, have ROM 4.Order Parts from “ Flex_cables_2_17 ” :

GLAST LAT ProjectFeb. 17, 2004 Hartmut Sadrozinski: TKR Flex Cables 4 Assembly Process Doc Assembly Process Doc Responsible: Jerry Clinton, Parts: Jeff Tice RPJ Message: should the drawing not specify the thermistor to be glued down and then potted? In flight cables we will also need to specify potting for the connectors and resistors (or maybe just a conformal coat for the latter). Should there not be a note on the drawing regarding the cure cycle for the film adhesive (done)? I would like to make it clear somehow that the film adhesive needs to extend under the metal wings of the connector, not just the main plastic body. This was not done so far at SLAC, but it is important if we are to be sure that the metal shells don't pop off. MaterialManufactureFunctionSupplier Item 1FM-73MCytec Engineered Materials Film Adhesive for nano connector to Flex Cable Vendor or SLAC Item 2EA-9394HysolEpoxy for potting of nano connector to Flex Cable Vendor or SLAC Item 3A8486Omnetics37 pin female nano connectorSLAC Item 4100 OhmState of the ArtResistor for flex cableSLAC Item 5200 OhmState of the ArtResistor for flex cableSLAC hartmut: Update with other parts: 39k , thermistor, stiffener(?), hartmut: Update with other parts: 39k , thermistor, stiffener(?),

GLAST LAT ProjectFeb. 17, 2004 Hartmut Sadrozinski: TKR Flex Cables 5 Way to TKR Flex Cable : Milestones 06/23/2003Start of my clock 08/26/2003PRR Readiness Review 10/27/2003TKR Interface Design Report 11/28/2003Original target for TKR IDD 01/23/2004New Layout Crew on board 02/10/2004Finalize interface GRID-TKR Flex cable C0 02/13/2004Finalize electrical layout cable C0 “You are here” 02/17/2004Is TKR IDD signed-off? 02/17/2004POStart Production of 14 non-flight C0 cables for INFN/DAQ 03/01/2004?All cables designed and laid out, ready for PRR 03/12/2004Tim O ’ Heron leaves 03/15/2004?Start Production of Short Cables ????? PRR,PO!Start Production of Flight Cables 03/15/2004?Flight connectors / Parts available ? 04/15/2004TKR Tower Test cables needed (C0)