Philips Semiconductors
Frame Transfer CCD Image Sensor
Product specification
FT 18
Device Handling
An image sensor is a MOS device which can be destroyed by electro-
static discharge (ESD). Therefore, the device should be handled
with care.
Always store the device with short-circuiting clamps or on conductive
foam. Always switch off all electric signals when inserting or removing
the sensor into or from a camera (the ESD protection in the CCD
image sensor process is less effective than the ESD protection of
standard CMOS circuits).
Being a high quality optical device, it is important that the cover
glass remain undamaged. When handling the sensor, use fingercots.
When cleaning the glass we recommend using ethanol (or possibly
water). Use of other liquids is strongly discouraged:
• if the cleaning liquid evaporates too quickly, rubbing is likely to
cause ESD damage.
• the cover glass and its coating can be damaged by other liquids.
Rub the window carefully and slowly.
Dry rubbing of the window may cause electro-static charges or
scratches which can destroy the device.
VSFD
BC
850C
BC
850C
BAT74
27 Ω
BAT74
Schottky!
BC
860C
15 Ω
BAT74
Schottky!
10kΩ
keep short
<10mm!
VNS OUT
100 Ω
keep short!
BFR
92A
output for
preprocessing
SFD
VPS VCS
VRD VOG
10kΩ
10kΩ
Figure 6 - Application diagram to protect the FT 18
2000 January
12