LZ0P3817
3) To avoid generating static electricity,
PRECAUTIONS FOR BUILT-IN LENS
CMOS IMAGE SENSORS
a.do not scrub the lens and package with cloth
etc.
b.do not attach any tape or labels.
4) When storing or transporting the device, put it in
a container of conductive material.
1. Package Breakage
In order to prevent the package, the lens holder,
and the lens from being broken, follow the
instructions below :
3. Dust and Contamination
1) The built-in lens CMOS image sensor is a
precise optical component and the package-
base material is ceramic.
Dust or contamination on the surface of the lens
and the inside of the lens holder could deteriorate
the output characteristics or cause a scar. In order
to minimize dust or contamination on the device,
take the following precautions :
Therefore,
ø Take care not to drop the device when
mounting, handling, or transporting.
ø Avoid giving a shock to the package.
Especially when pins are fixed to the socket
or the circuit board, a small shock could
break the package more easily than when
the package isn’t fixed.
1) Do not remove the lens from the body.
Especially when adjusting macro, be careful
not to remove the lens by turning it counter-
clockwise too much.
2) Do not touch the surface of the lens with the
fingers. If dust or contamination gets on the
surface of the lens, the following cleaning
method is recommended :
2) If any damage or breakage occurs on the
surface of the lens, its characteristics could
deteriorate.
ø Handle the built-in lens CMOS image sensor
in a clean environment such as a cleaned
booth. (The cleanliness level should be, if
possible, class 1 000 at least.)
Therefore,
ø Do not hit the lens.
ø Do not give a shock large enough to cause
distortion.
ø Dust from static electricity should be blown
off with an ionized air blower. For anti-
electrostatic measures, however, ground all
the pins on the device before blowing off the
dust.
ø Do not scrub or scratch the surface of the
lens.
– Even a soft cloth or applicator, if dry, could
cause flaws to scratch the lens.
ø The contamination on the surface of the lens
should be wiped off with a clean applicator
soaked in isopropyl alcohol. Wipe slowly and
gently in one direction only.
2. Electrostatic Damage
As compared with general MOS-LSI, CMOS image
sensor has lower ESD. Therefore, take the
following antistatic measures when handling the
CMOS image sensor :
– Frequently replace the applicator and do not
use the same applicator to clean more than
one device.
1) Always discharge static electricity by grounding
the human body and the instrument to be used.
To ground the human body, provide resistance
of about 1 M$ between the human body and
the ground to be on the safe side.
ø Make sure there is no dust or contamination
on the lens and screw it on the lens holder.
2) When directly handling the device with the
fingers, hold the lens holder and do not touch
the pin.
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