PCB procurement for Module0 PCB WG 16042014 J

PCB procurement for Module-0 PCB WG, 16/04/2014 J. Wotschack

Dimensions of PCBs SECTORS Modules Large Small LM 1 LM 2 SM 1 SM 2 a (inner length) 640 2022. 8 500 1321. 1 b (outer length) 2008. 5 2220 1319. 2 1821. 5 Space for electronics (mm) 65 65 Drift (inner length) 510 1892. 8 370 1191. 1 Drift (outer length) 1878. 5 2090 1189. 2 1691. 5 c (radial size) 2310 1410 2210 1350 § PCBs size from China: 2187 x 1244 mm 2 § MDT (Tosi): ≈ 2400 x 1450 mm 2 (? ? ? ) PCB WG, 16/04/2014 J. Wotschack

Open questions § PCBs (readout) for Module-0 § Central procurement through CERN ? - Yes § How many companies ? 3 or 4 § Shall we buy the material through CERN and send to companies or ask them to acquire the material? § Costs § How many panels? For one or two modules ? § 1 module: 20 PCBs for S/LM 1; 12 PCBs for S/LM 2 = 64 total § 4 or 8 pieces / type § How to finance ? Module-0 is NOT part of Core PCB WG, 16/04/2014 J. Wotschack

Splitting of orders § 12 (or 24) PCBs for SM 2 and LM 2 each § 20 (or 40) PCBs for SM 1 and LM 1 each § LM 2: all boards exceed L=2187 mm (=> MDT ? ) § SM 2: can combine smallest PCB with SM 1 PCBs § SM 1 and LM 1: can combine two PCBs in same panel PCB WG, 16/04/2014 J. Wotschack

Drift panel PCBs § Central order through CERN ? § Single PCB or two PCBs per face? PCB WG, 16/04/2014 J. Wotschack