Friday, October 03, 2008

Laptop Production Line - Panasonic case study - Optical Validation

I've read a very interesting article on businessmobile.fr explaining the acceptance testing performed on the ToughBook Panasonic Laptops across the production line.

In my current job, I'm indirectly involved in the production process of Smart Card, Set-Top-Box and other CE devices, but thanks to this article, I've learned about a validation method I didn't know about (BTW - it could really be that this technic is broadly used in the CE manufacturing area, but it was new for me): Optical Validation. This technic is to "scan" the actual newly produced complete PCB and compare it to the designed blueprint (schematics) of this product. This step helps discovering any missing part in the newly produced product.

Here is a pic of this sub system:


Interesting, isn't it?

Here is a link to the full article (FR) : http://www.businessmobile.fr/actualites/analyses/0,3800003718,39383770-3,00.htm

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2 Comments:

At 9:49 AM, Anonymous Anonymous said...

Hi Yonathan,

Interesting. But this should be performed at a very early stage of the production is it?
I guess there are some electrical validation of the PCB at this stage as well.

Gerard Maulino (DK)

 
At 3:17 PM, Blogger Yohan [Yonathan] Albo said...

Bonjour Gerard,
How are you?

I guess this optical validation should be done after all the parts are "mounted" on the PCB (based on the product produced and its manufacturing process, it could be that it will be also valuable to perform such a validation earlier after some specific mounting stages), before loading the main SW. After that the product should be ready for basic functional test. This phase could be done using the final SW stack, but from my experience with manufacturers, I understand they prefer to use a temporary test image for this purpose where they can have a more complete suite of test scenarios and debugging tools.

Have a nice day,
Yohan Albo

 

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