TPAC1.2 Results Jamie Crooks 1 st June 2009. Status TPAC1.2 received WAFERSEPISUBSTRATEDPWDICED QTY 312STDYES75 312STDNO75 312HI RESYES75 318HI RESYES75.

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Presentation transcript:

TPAC1.2 Results Jamie Crooks 1 st June 2009

Status TPAC1.2 received WAFERSEPISUBSTRATEDPWDICED QTY 312STDYES75 312STDNO75 312HI RESYES75 318HI RESYES75

Status 7 chips now bonded, 5 more in progress – 0 power-ground shorts – 5 usable sensors today PCBWFRVARIANTALIGNMENTTESTNOTES 50312u +DPWLASERConfiguration errors (all cols) 29312u +DPWLASEROkPaul/CALICEDAQ u +DPWLASEROkMarcel/55Fe 41312u +DPWLASEROk, with configuration errors (col 53 only) 21912u HIRES + DPWLASEROk, with configuration errors (col 148 only) 44212u +DPWCENTEROk 42212u +DPWCENTERSpill fails 4712u +DPWCENTER 4612u +DPWCENTER 4512u +DPWCENTER 2312u +DPWCENTER 4818u HIRES + DPWLASER

Per-Pixel threshold scans (noise) Randomly selected single pixel in each region Noise is Gaussian – Pixel shielding added on metal 2 appears to help – Coupling/oscillation at low thresholds is not evident

Single pixel trim scan Trims 0,2,4,6,8,10,12,14,16,18,20,22,24… The trim range still needs to be set up correctly Was never done for TPAC1.1 which had the larger #bits May involve a resistor value change Once per-pixel spread is known I can set this Sooner the better (for modifying PCBs) Currently the range should be twice that on TPAC1.0 with 4x resolution

Pixel addresses (noise) TPAC1.1 o Addressing bug TPAC1.2 o Full addresses restored