Possible types of Si-sensor: SILICON CALORIMETRY FOR A LINEAR COLLIDER G.Bashindzhagyan, Il Park August 2002 1. Silicon sensor First option: One sensor 1010 cm2 size. Second option: Four sensors 55 cm2 size. A cost per 1 cm2 can be essentially less for the second option. ~10 cm ~10 cm 6” Si-Wafer Possible types of Si-sensor: Pixel sensor Strip sensor Sensor size: 55 cm2 Pixel size: 1.251.25 cm2 Pixel area: 1.56 cm2 Number of pixels: 16 Sensor size: 55 cm2 Strip width: 0.5 cm Strip area: 2.5 cm2 Number of strips: 10 Pixel sensor For coupled strip sensors Sensor size: 55 cm2 Pixel size: 0.50.5 cm2 Pixel area: 0.25 cm2 Number of pixels: 100 Two sensor size: 510 cm2 Strip width: 0.5 cm Strip area: 5 cm2 Number of strips: 10

To the module electronics SILICON CALORIMETRY FOR A LINEAR COLLIDER G.Bashindzhagyan, Il Park August 2002 2. Kapton Cable Kapton thickness ~20 µm; Gold strip-line thickness ~10 µm; Gold strip-lines width ~100 µm; - The Detector Board (G10 ?); - Kapton layer; - Gold strip-line on the kapton; - Silicon sensors; - Elastic foam band. Top View. ~ 2 mm 5 (6;10) cm Gold strip-lines The holes in the kapton Kapton cable Detector Board iside the Module. Cross section. To the module electronics Kapton cable with gold strip-lines Elastic foam band Si-sensor Tungsten ~2.5 mm Detector board Tungsten Gold strip-line Points of bonding Gold strip-line Kapton Point of bonding Aluminum on the Si-sensor Silicon sensor Aluminum wire  25 µm Silicon sensor The strip-line bonding: only one contact no additional thickness. Compare to regular wire bonding: three contacts protection is required.

…….. 3. Mechanical Structure. Possible types of the module SILICON CALORIMETRY FOR A LINEAR COLLIDER G.Bashindzhagyan, Il Park August 2002 3. Mechanical Structure. Possible types of the module Stainless steel plate ~1 m Module electronics Si/W layers …….. ~1 m Internal structure (not in scale). Stainless steel plate ~10 mm Tungsten plates 1.4 - 4.2 mm Spacers glued to W Spacers/Ribs ~ 500 mm long; material: steel(?), titanium (?) ~3 mm ~0.3 mm ~0.2 mm 50 mm 50 mm 2.5 mm

Cross section (not in scale). SILICON CALORIMETRY FOR A LINEAR COLLIDER G.Bashindzhagyan, Il Park August 2002 4. Detector Board. Top View. Length: ~50 cm Width: 5/6/10 cm Pixel size: 0.25-1.56 cm2 Detector Board G10 (?) 0.2 mm 0.1 mm 0.1 mm Pixeled Si sensors Cross section (not in scale). Gold strip-lines on the kapton cable Kapton cable Elastic foam band ~2.5 mm Detector Board Silicon sensors