3) To avoid generating static electricity,

a. do not scrub the glass surface with cloth or

plastic.

b. do not attach any tape or labels.

c. do not clean the glass surface with dust-

cleaning tape.

4) When storing or transporting the device, put it in

a container of conductive material.

3. Dust and Contamination

Dust or contamination on the glass surface could

deteriorate the output characteristics or cause a

scar. In order to minimize dust or contamination on

the glass surface, take the following precautions :

1) Handle the CCD in a clean environment such

as a cleaned booth. (The cleanliness level

should be, if possible, class 1 000 at least.)

2) Do not touch the glass surface with the fingers.

If dust or contamination gets on the glass

surface, the following cleaning method is

recommended :

ø Dust from static electricity should be blown

off with an ionized air blower. For anti-

electrostatic measures, however, ground all

the leads on the device before blowing off

the dust.

ø The contamination on the glass surface

should be wiped off with a clean applicator

soaked in Isopropyl alcohol. Wipe slowly and

gently in one direction only.

– Frequently replace the applicator and do not

use the same applicator to clean more than

one device.

◊ Note : In most cases, dust and contamination

are unavoidable, even before the device

is first used. It is, therefore, recommended

that the above procedures should be

taken to wipe out dust and contamination

before using the device.

4. Other

1) Soldering should be manually performed within

5 seconds at 350 °C maximum at soldering iron.

2) Avoid using or storing the CCD at high tem-

perature or high humidity as it is a precise

optical component. Do not give a mechanical

shock to the CCD.

3) Do not expose the device to strong light. For

the color device, long exposure to strong light

will fade the color of the color filters.

11

PRECAUTIONS FOR CCD AREA SENSORS