Text Box: pixel boundary
pixel
boundary
Charge packet
p-type silicon
n-type silicon
SiO2 Insulating layer
Electrode Structure
Text Box: pixel boundary
pixel
boundary
Text Box: incoming photons
incoming
photons
Charge Collection in a CCD.
Photons entering the CCD create electron-hole pairs. The electrons are then attracted towards
the most positive potential in the device where they create ‘charge packets’. Each packet
corresponds to one pixel