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Details connections of pixel_carrier and extenders. BIAS 2 (10uA). Bias 2. BIAS 1 (10uA). Bias 1. AGND. AGND. VTT (1A). Senses (VTT). 5A. SENSES. GND (VTT). VTTA (0.1A). Senses (VTTA). VDDA. AGND (VTTA). MCM_Dig (1A). Senses (MCM_Dig). RESISTOR TO VTT. GND. GND (MCM_DIG). VDD

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  1. Details connections of pixel_carrier and extenders BIAS 2 (10uA) Bias 2 BIAS 1 (10uA) Bias 1 AGND AGND VTT (1A) Senses (VTT) 5A SENSES GND (VTT) VTTA (0.1A) Senses (VTTA) VDDA AGND (VTTA) MCM_Dig (1A) Senses (MCM_Dig) RESISTOR TO VTT GND GND (MCM_DIG) VDD DECOUPLING CAPACITOR MCM_A (?) SENSES 2A Senses BIAS DECOUPLING CAPACITOR VDD AGND AGND VDDA SIG VDD GND Pixel detector Pilot MCM Al pixel carrier Pixel chip Cu extender 1 Cu extender 2 Michel Morel EP/ED 11/01 Note: the drawing is not to scale

  2. PIXEL BUS + DETECTOR AND READOUT CHIP CROSS SECTION 2mm 11mm SMD component 7 7 7 7 6 6 5 5 4 PIXEL_BUS 235µm 3 Aluminium 2 2 Polyimide 1 1 PIXEL DETECTOR Glue 600µm READOUT CHIP 1 ANALOG_GND 25µ 2 ANALOG_ POWER 25µ 3 HORIZONTAL LINES 10µ 4 VERTICAL LINES 5µ 5 DIGITAL_POWER 25µ 6 DIGITAL_GND 25µ 7 RES + CAPA PADS 15µ ? CARBON FIBER SUPPORT COOLING TUBE Note: the drawing is not to scale Michel Morel EP/ED 09/2000

  3. CARRIER BUS CROSS SECTION 7) Resistors + capacitors pads 6) Digital ground 235µ 5) Digital power Glue 5µ Polyimide 15µ 4) vertical lines 3) Horizontal lines Special Aluminium for pads 15µ 2) Analogue power supply Aluminium 25µ Aluminium 10µ 1) Analogue ground Aluminium 5µ Liquid Polyimide 5µ

  4. PIXEL__EXTENDERS Cross section VDD S1 S2 GND VDDA S1 S2 AGND ~50µm MCM_D 70µm MCMA GND GND S1 S2 S1 S2 VTTA AGND AGND AGND S1 S2 VTT S1 S2 B1 B2 50µm Top view 1m 0.2m AGND BIAS AGND 12mm VDDA VDDA GND VDD GND VDD Pixel_carrier Copper Cover-lay Kapton1(top) Note: the drawing is not to scale Kapton2 (bottom) Michel Morel EP/ED 11/01

  5. EXTENDER_1 170µm VDD Sense GND EXTENDER_2 170µm MCM_D Sense GND 7 6 5 PIXEL_CARRIER 235µm 4 3 2 1 Opt. Link Opt. Link Opt. Link MCM Carrier 1.15 mm Pilot & GOL MCM Cover-lay Cu Cooling tube Kapton Al Glue Michel Morel EP/ED 05/01 Michel Morel EP/ED 03/01

  6. EXAMPLES OF BONDING CONNECTIONS Detector bias 400µ Pixel detector Digital ground digital power Vertical lines Analogue power Analogue ground Pixel readout chip Michel Morel EP/ED 09/00

  7. DETAILS ASSEMBLING (FRONT VIEW) EXTENDERS CAPACITOR PIXEL_CARRIER 1.7mm Digital PILOT GOL DETECTOR Analogue PILOT Laser Receiver + diodes OPTICAL LINK X 3 COOLING TUBE READOUT CHIP CARBON FIBER SUPPORT Michel Morel EP/ED 03/2001

  8. Cu extender 1 Cu extender 2 Al Pixel_carrier PILOT MCM

  9. ALICE PIXEL DETECTOR Image:INFN(Padova)

  10. TOP VIEW OF ALICE PIXEL DETECTOR ONE SECTOR REPRESENTED (SOLUTION A) Pixel_chip Extender carrier bus ladder Pilot & Optical link Image:INFN(Padova) Michel Morel EP/ED 09/00

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