PXD Summary PXD Sessions Highlights 1 2 3

PXD Summary PXD Sessions: Highlights 1) 2) 3) 4) 5) 6) 7) Sensor production EMCM (& bump bonding) System Simulations Power Supplies and Services Results Hybrid 5 Background: Synchrotron Radiation AOB Hans-Günther Moser, PXD 1

PXD 9 1 st batch 13 wafers In production 2 nd batch 18 wafers Not yet started Hans-Günther Moser, PXD 2

PXD 9 Processing Hans-Günther Moser, PXD 3

Next Steps Hans-Günther Moser, PXD 4

Changes since PXD 6 unirradiated Even-odd effect due to shadowing of an implantation Changed order of processing sequence Still there, but does not change with irradiation even Hans-Günther Moser, PXD odd 5

Extra Pads for Testing Could be simplified to speed up testing, however loss of information Hans-Günther Moser, PXD 6

New Operation Range Hans-Günther Moser, PXD 7

SOI qualification for 2 nd batch Test diodes produced with Shin Etsu wafers: ok, qualified for production Batch 2 can be started as soon as possible (train staff) Hans-Günther Moser, PXD 8

EMCM ~ 70 mm SUSS Probe station PA 200 equipped with 2 flying probes ● SUSS Semi-automatic probe PH 600 ● Cascade Semi-automatic probe PH 510 (max range 25 mm) First wafer will be tested by a company in a few days: then populate with ASICs and test! Hans-Günther Moser, PXD 9

EMCM assembly and test jig Ready 2 nd week of March Hans-Günther Moser, PXD 10

Bump Bonding at CNM Nice progress But still some problems to solve…. . => controlled dispensing of tacky flux => exercise. . Enough components for training available Need hot ASICs for first real EMCMs by end of February (e. g. 20 Switcher) Hans-Günther Moser, PXD 11

DHP testing with probe-card DHP availability: few, ~ 15 could buy more chips (for 16 k€) wait for DHP 1. T (too late? ) rework old chips Hans-Günther - Moser, PXD 12

Simulations Propose working group meeting on simulations before end of February Hans-Günther Moser, PXD 13

Power Supplies 10 cm Kapton for EMCM ordered Hans-Günther Moser, PXD 14

Hybrid 5 160 MHz Test of complete ASIC chain! Hans-Günther Moser, PXD 15

Background Hans-Günther Moser, PXD 16

Radiation All but synchrotron radiation) Occupancy and radiation dose not negligible but tolerable Bur: synchrotron radiation still missing! By the way: could we calculate radiation dose / luminosity and plot the total dose as function of the integrated luminosity (takes into account ramping up – but not initial effects due to beam tuning!) 1 Belle-year = 1. 6 sny => 0. 25 Mrad/(ab)-1 => 12. 5 Mrad @ 50 1/ab Hans-Günther Moser, PXD 17

Synchrotron Radiation LER Or 1. 2 % since normalised to full ladder? Hans-Günther Moser, PXD 18

Synchrotron Radiation LER: 0. 6 % (essentially in one module) HEL: 0. 5 % (more or less uniform) Max occupancy: 0. 9% + 0. 6% + 0. 5% = 2% For me this is too close to the limit. We need more safety margin! Radiation damage: only 1/1000 of the photons convert in the oxide (90 nm/75µm x ratio absorption coefficients) However, all the gamma energy is deposited 1% occupancy => 0. 5 Mrad/year (back on the envelop, Norbert and myself) Again: not neglicable! assumption: gammas are at 5 ke. V, silicon oxide transparent at higher energies However; HER background seem to be at higher energies…. Need spectrum! Is this it? What about misalignment, halo…. . Can we fight it at the source (last way out: gold) Hans-Günther Moser, PXD 19

Omissions Cooling: MARCO progressing next: transfer lines, cooling mockup Software: tracking, alignment……. DAQ (ATCA and DHH) Fibre aligments sensors Installation and remote vacuum seal Test beam analysis ASIC: DHP in 65 nm And and Hans-Günther Moser, PXD 20

Questions Temperature diode on switcher, balcony or DEPFET ? DHP 65 nm design review meeting early March -> can we have such meetings also for the other ASICs Switcher: bumping by AMS or elsewhere? Test of Hybrid 5 and DHH (important for test beam in May) Noise of DHP at 320 MHz, problems with few ADC channels High priority: EMCM pre-testing, assembly (flip chip) and testing ÞImportant in order to start metal layers on PXD 9 ÞFinalize design of metal layers! Missed milestone: was September 2012 Assemble & test PXD 6 module for combined test beam Missed milestone: was December 2012 Hans-Günther Moser, PXD 21

Thanks to the Giessen team for hosting this great workshop! Hans-Günther Moser, PXD 22