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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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slide1

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

slide2

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

slide3

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

slide4

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

slide5

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

slide6

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

slide7

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

slide8

Cu extender 1

Cu extender 2

Al Pixel_carrier

PILOT MCM

slide9

ALICE PIXEL DETECTOR

Image:INFN(Padova)

slide10

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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