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参数资料
| 型号： | TCD2953CF |
| 元件分类： | 模拟信号调理 |
| 英文描述： | SPECIALTY ANALOG CIRCUIT, CDMA32 |
| 封装： | CERAMIC, LCC-32 |
| 文件页数： | 5/15页 |
| 文件大小： | 273K |
| 代理商： | TCD2953CF |
TCD2953CF
2003-06-04
13
5. Mounting
In the case of solder mounting, the devices should be mounted with the window glass protective tape in
order to avoid dust or dirt included in reflow machine.
6. Soldering Temperature Profile for Pb free
Good temperature profile for each soldering method is as follows. In addition, in case of the repair work
accompanied by IC removal, since the degree of parallel may be spoiled with the left solder, please do not
carry out and in case of the repair work not accompanied by IC removal, carry out with a soldering iron or ,
in reflow, carry out at once.
a.
Using a soldering iron
Complete soldering within ten seconds for lead temperatures of up to 260°C, or within three seconds
for lead temperatures of up to 350°C.
b.
Using long infrared rays reflow/hot air reflow
Complete the infrared ray reflow process within between 30 seconds and 50 seconds at a package
surface (electrode) temperature of between 230°C and 260°C.
Refer to the following Figure for an example of a good temperature profile for long infrared rays or hot
air reflow.
7. Window Glass Protective Tape
The window glass protective tape is manufactured from materials in which static charges tend to build
up. When removing the tape from CCD sensor after solder mounting, install an ionizer to prevent the tape
from being charged with static electricity.
When the tape is removed, adhesives will remain in the glass surface. Since these adhesives appear as
black flaws on the image, please wipe off it by a swab or cloth soaked in small amount of organic solution,
such as volatile alcohol (ethanol etc.), before including in a product.
Do not reuse the tape.
8. Window Glass
The dust and stain on the glass window of the package degrade optical performance of CCD sensor.
Keep the glass window clean by saturating a cotton swab in alcohol and lightly wiping the surface, and
allow the glass to dry, by blowing with filtered dry N2. Care should be taken to avoid mechanical or
thermal shock because the glass window is easily to damage.
180
190
260
230
60-120
seconds
30-50
seconds
or less
P
ack
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Time (in seconds)
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