Pixel defects

Pixel defects are ordered in the following way:

dead pixel / mask defects / bump defects / trim bit defects / address decoding problem

noisy pixel / trimming problems (threshold) / gain defect / pedestal defects / parameter1 defects 


A deficient performance is defined as follows:

Noise        outside range 50 - 400 electrons
Threshold    outside range 50 - 70  (for Vcal 60)
Gain         outside range 0.5 - 6.0 at -10 C, 1.0 - 4.5 at 17 C
Pedestal     outliers in distribution (under-/overflow in histogram)
Parameter1   outside range 0.0 - 7.0

Such pixel are not counted as defective.

Wenn der Pixel tot ist, werden dem Pixel keine 
weiteren Defekte mehr zugeordnet. Ist der Pixel 
"alive" können dem selbem Pixel auch mehrere Defekte  
zugeordnet sein. Die genaue Anzahl defekter Pixel 
pro Chip und das Total (ohne "double counting") findet
 man in den Tabellen unter den Links T-10a/b und T+17a.