==================================== From: SMTP%"lca@spica.is.s.u-tokyo.ac.jp" 12-DEC-1996 09:11:53.27 here is the input for the comp. table, I can give for the moment: All the information and numbers are for the prototype of the double sided forward module. Drawings: can be found on our web-site http://hll.mpe-garching.mpg.de/~lca/forward.html there is also a link from your module page to our entry page. I did not manage to get the electrical prototype ready, so there is no data for this item. Thermal performance: measured in static air at approximatly room temperature. The module was heated with 0.6 W (only two detectors, as they are double sided) and 3 W for the electronics. The coolant temperature was varied from -2 to 10 deg.C. The module was housed in a thermally isolating box (as good as possible). If the coldest point on the hybrid is 21.7 deg.C and the ambiente temp. 24.3 degC: Si Tmax = 27.6 deg Si deltaT = 2 Kelvin hyb T max = 28.3 hyb delta T = 6.6 K Thermal FEA: see web page Thermal distortion not measured. No FEA of thermal distortion. No wire bond test. average radiation length: ca. 0.9 %X0 for the prototype Cost estimation will be presented later. Results, assembling procedure and optimization prozess will be presented an monday at CERN. Regards, Laci ================================== From: SMTP%"chaber@csa2.lbl.gov" 12-DEC-1996 17:46:13.97 Here is a summary on results from center tapped modules studied at LBL. ATT8: 2 cafe BN, Hammamatsu nn75AC detectors, ceramic hybrid glued directly on the silicon "H8 reference module" ATT9: same chips and detectors as ATT8 but ceramic hybrid is bridged over the silicon and TPG is glued to back of detector. ATT1: 6 cafe BP, LBL pn75DC detectors, fully bonded all these modules were "single sided" LBIC1,2 fully populated pn75DC back to back single sided "anchor planes" 1. Noise: for the LBIC modules, noise was consistent with previous LBIC measurements. ATT8 and ATT9 show identical noise and gain to eachother. Typical noise is 0.22-0.24 fc (about 1300 e) for 12 cm strips. ATT1 also shows similar noise. The key point about ATT1 is that it has 6 cafe on it. The good performance of ATT1 means that it is safe to fully load a hybrid. After bad results on the Z modules we were concerned about this since the Z module had chips at the extreme ends. 2. Occupancy: This has been studied and documented in the H8 analysis. For ATT8 we are below 10**-3 at 1 fc. ATT9 shows similar performance in the lab. I don't have data on ATT1 but it will be the same since the noise is similar. 3. Source data: none but beam has been studied in ATT8 anyway. 4. Thermal data: none 5. Drawings: I will bring them to CERN, is that OK? 6. wirebonding: typical pulls 7-10 gr. tends to break at the detector not the hybrid end. No problem bonding on the bridge at all. 7. radiation length: including silicon the center tapped is about 2%. However I can probably reduce this by thinning the gold on the hybrid. This is a complete calculation including TPG. 8. Assembly steps: This has been documented by Gibson and Apsimon at RAL for both end and center tapped modules. special features: separate hybrids on each side mean better yield on hybrids since 12 chips per hybrid rather than 24. No glue on silicon ANYWARE. Very symmetrical mechanically. Check out the photos on WWW tomarrow: http://www-atlas.lbl.gov/strips/doc/figures/bridge_module.html Carl =================================== From: SMTP%"A.A.Carter@qmw.ac.uk" 12-DEC-1996 23:18:59.96 Subj: latest input from UK and their collaborators barrel modules ___________________________________________________________________________ Status summary of prototype module work ** ___________________________________________________________________________ | Module Prototype Item |________________________________________________________ | |UK and others |UK and others | | |Barrel End-tap |Barrel Cen-tap | __________________|_________________|_________________|_______________|____ Mechanical | | | | drawings | | YES | YES | __________________|_________________|_________________|_______________|____ Electrical performance: [bias=deplete+50V] __________________|_________________|_________________|_______________|____ (a) rms noise | | -- | -- | __________________|_________________|_________________|_______________|____ (b) Occupancy@1fC | | -- | -- | __________________|_________________|_________________|_______________|____ (c) pulse height with Ru106 source -- -- __________________|_________________|_________________|_______________|____ (i) single strip | | -- | -- | __________________|_________________|_________________|_______________|____ (ii)2strip cluster| | -- | -- | __________________|_________________|_________________|_______________|____ Thermal performance: [heating 1W+3W] with temps wrt lowest module contact temp. | 2-PIPES/ 1-PIPE |2-PIPES/ 1-PIPE| __________________|_________________|_________________|_______________|____ (a)in vacuo: | | NO INFO | NO INFO | (i)Si Tmax | | | | (ii)Si DeltaT | | | | (iii)Hybrid Tmax | | | | (iv)Hybrid DeltaT | | | | __________________|_________________|_________________|_______________|____ (b)in static air: | | | | (i)Si Tmax | | 4 deg / 9 deg |5 deg / 12 deg | (ii)Si DeltaT | | 2 deg / 7 deg |3 deg / 8 deg | (iii)Hybrid Tmax | |16 deg /28 deg |9 deg / 15 deg | (iv)Hybrid DeltaT | |<16deg/<28 deg |<9deg /<15 deg | __________________|_________________|_________________|_______________|____ (c)tiled config: | | | | increase in Tmax | | -- | -- | __________________|_________________|_________________|_______________|____ Thermal FEA | Y/N | YES | YES | __________________|_________________|_________________|_______________|____ Thermal runaway: | | | | detector power at| | 3.5W / 1.5W | ????/???? | runaway point | | | | __________________|_________________|_________________|_______________|____ Thermal distortion: at [1W+3W] __________________|_________________|_________________|_______________|____ (a)Max deflect'n | | | | Tamb=0C | | / 4um | / 5um | __________________|_________________|_________________|_______________|____ (b)Max deflect'n | | | | Tamb=20C | | -- | -- | __________________|_________________|_________________|_______________|____ (c)Variation of | | | | max deflection | | / 18um | / 18um | between 0C & 20C | | | | __________________|_________________|_________________|_______________|____ FEA of distortion| Y/N | ???? | ???? | __________________|_________________|_________________|_______________|____ Wire bond tests | Y/N | YES | YES | __________________|_________________|_________________|_______________|____ Average module | | | | radiation length | | 1.20% | 1.38% | __________________|_________________|_________________|_______________|____ Cost | | | | (excluding | | BeO, including |BeO, including | Detectors, FEE | | hybrid substrate|hybrid substrate| chips, and elec | NOTE: | 50SF | 100SF | parts) | NO TPG in |Printing, perhaps|Printing,perhaps| **[exclude pitch | these versions | 100-200SF | 100-200SF | adapters] | | | | ____________________________________________________________________________ ** Please refer to "Module Definition and Comparison of Performance" on WWW documentation for amplified definition of all sub-item headings given in the list below. ____________________________________________________________________________ ============================== From: SMTP%"steve@a3.ph.man.ac.uk" 13-DEC-1996 04:49:19.50 A note decribing our results on a forward thermal module is available through my home page at Manchester: http:/h2.ph.man.ac.uk/~steve/home.html best regards, Steve. ============================== ___________________________________________________________________________ Status summary of prototype module work ** ___________________________________________________________________________ | Module Prototype Item |________________________________________________________ | | KEK Barrel | KEK Barrel | | | End-tap | Centre-tap | __________________|_________________|_________________|_______________|____ Mechanical | Y/N | | | drawings | | YES | YES | __________________|_________________|_________________|_______________|____ Electrical performance: [bias=deplete+50V] __________________|_________________|_________________|_______________|____ (a) rms noise | | IN PROGRESS | IN PROGRESS | __________________|_________________|_________________|_______________|____ (b) Occupancy@1fC | | | | __________________|_________________|_________________|_______________|____ (c) pulse height with Ru106 source __________________|_________________|_________________|_______________|____ (i) single strip | | -- | -- | __________________|_________________|_________________|_______________|____ (ii)2strip cluster| | -- | -- | __________________|_________________|_________________|_______________|____ Thermal performance: [heating 1W+3W] with temps wrt lowest module contact temp. | | 1-PIPE/TILED | 1-PIPE | | | /DOUBLE-TILED | | __________________|_________________|_________________|_______________|____ (a)in vacuo: | | [deg.C] | [deg.C] | (i)Si Tmax | | 2.1 | 5.9 | (ii)Si DeltaT | | 1.8 | 2.9 | (iii)Hybrid Tmax | | 9.1 | 9.3 | (iv)Hybrid DeltaT | | 5.9 | 6.1 | (v) Coolant T | | -4.2 | -3.7 | __________________|_________________|_________________|_______________|____ (b)in static air: | | [deg.C] | | (i)Si Tmax | | 1.7/2.6/2.6 | 5.4 | (ii)Si DeltaT | | 1.3/2.1/2.0 | 2.7 | (iii)Hybrid Tmax | | 8.7/8.2/8.6 | 7.7 | (iv)Hybrid DeltaT | | 5.5/5.1/5.1 | 4.9 | (v) Coolant T | | -3.7/-3.7/-5.6 | -3.3 | __________________|_________________|_________________|_______________|____ (c)tiled config: | | | | increase in Tmax | | SEE ABOVE | | __________________|_________________|_________________|_______________|____ Thermal FEA | Y/N | YES | YES | __________________|_________________|_________________|_______________|____ Thermal runaway: | | | | detector power at| | IN CACULATION | IN CALCULATION| runaway point | | | | __________________|_________________|_________________|_______________|____ Thermal distortion: at [1W+3W] __________________|_________________|_________________|_______________|____ (a)Max deflect'n | | | | Tamb=0C | | 4 um | 4.8 um | __________________|_________________|_________________|_______________|____ (b)Max deflect'n | | | | Tamb=20C | 25 C | 6.5 um | 1 um | __________________|_________________|_________________|_______________|____ (c)Variation of | | | | max deflection | 0 <-> 25 C | 10 um | 9 um | between 0C & 20C | | | | __________________|_________________|_________________|_______________|____ FEA of distortion| Y/N | NO | NO | __________________|_________________|_________________|_______________|____ Wire bond tests | Y/N | YES | YES | __________________|_________________|_________________|_______________|____ Average module | | | | radiation length | | 1.35% | 1.43% | __________________|_________________|_________________|_______________|____ Cost | | | | (excluding | PG1300 | 380 SFr | 340 SFr | Detectors, FEE | BeO | ? | 50? SFr | chips, and elec | Kapton hybrid | 60 SFr | 60 SFr | parts) | | | | | | | | ____________________________________________________________________________