Dave,
Honestly, in Europe, I don't see that many of IPC-356 as you are stating,
good for you.
It is true IPC is not yet into the "roots" of Designers.. there is the
language barrier for many .. The largest European market being Germany..
then you add Italy, France, Greece, Turkey, Hungary, Spain, Portugal,
Switzerland, Belgium, Luxemburg, Austria, Poland, etc...
Before the IPC-356 there was this simple yet efficient way of checking by
counting the nets length from design compare to tester, i.e.:
Length 1 : 221
Length 2 : 111
Length 3 : ...
And so on, that would need to match the tester's net count.. That was at the
beginning of Mania testers .. before we were using the CAD to CAM and on to
-> IPC-356
Two paper printed lists had to match...
Very Best regards
Rol@nd
www.PCBspecialist.com
T +41-22-880-0405 F +41-22-880-0409 Mob +41-79-203-3723
-----Message d'origine-----
De : TechNet [mailto:[log in to unmask]] De la part de Dave Seymour
Envoyé : mercredi, 6. avril 2005 20:26
À : [log in to unmask]
Objet : Re: [TN] Golden Board Electrical test
We use Cadence Allegro, "IPC-356" can be extracted during output.
On the fab drawing we have a note:
#12. Perform Electrical netlist testing on all PWBS per IPC-D-356 netlist
provided. If netlist provided does not match artwork during fabrication
front
end job setup, stop job, and call Catapult.
We do up to 30 layer, low volume. I would hate to build anything that didn't
match. All I got to say is "Time and money"
dave
Roland Jaquet wrote:
>It sounds so good..
>
>Unfortunately, so little companies are even conscious of the advantage of
>the IPC-356.. and if the CAD software does not yet automatically supply it,
>please request it.
>
>Any idea of the percentage of PCB orders that are using IPC-356 ???
>
>Can PCB manufacturers give an idea of the percentage of jobs they get with
>it???
>
>I seen Electrically Tested PCB's that were missing an inner layer...
because
>they used the Golden board approach...
>
>
>Very Best regards
>Rol@nd
>
>www.PCBspecialist.com
>T +41-22-880-0405 F +41-22-880-0409 Mob +41-79-203-3723
>
>
>-----Message d'origine-----
>De : TechNet [mailto:[log in to unmask]] De la part de Dave Seymour
>Envoyé : mercredi, 6. avril 2005 15:57
>À : [log in to unmask]
>Objet : Re: [TN] Golden Board Electrical test
>
>To add Marsal response.
>
>The golden board goes through shorts and opens test,
>visual QC and then passed. This board the becomes the
>reference that all other boards are then check by.
>
>However, this not an electrical netlist test.
>If the generated Gerber artwork had an error during output at
>the design phase, the artwork produced may not match the intended
>schematic.
>
>At this point all boards match each other and are declared "good",
>But, the boards don't match the schematic.
>
>This is the reason for the "IPC-356" netlist being included with all
>jobs going to fabrication. All designs that leave our shop must have
>an extract IPC-356 netlist for the fab shop to verify artwork shipped.
>
>Hope this helps.
>dave
>
>
>
>
>Marsal Tampubolon wrote:
>
>
>
>>Hi Suganthi..
>>In other words, golden board also call as KGB
>>(Known Good board ). Sometimes also call as reference
>>board. Meaning it is the sample board that being
>>pass test if there is electrical test conducted or
>>pass visual test. This board will using for set
>>up tester before run to mass production test or during
>>comparison for troubleshoot board defect from the same
>>model.
>>
>>****************************************************
>>Regards...
>>Marsal GM Tampubolon.
>>
>>
>>|---------+---------------------------->
>>| | Suganthi |
>>| | <suganthi@CG-CORE|
>>| | EL.COM> |
>>| | Sent by: TechNet |
>>| | <[log in to unmask]>|
>>| | |
>>| | |
>>| | 06-04-05 04:30 PM|
>>| | Please respond to|
>>| | Suganthi |
>>| | |
>>|---------+---------------------------->
>>
>>--------------------------------------------------------------------------
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>>
>>
>-------------------|
>
>
>> |
>>
>>
>|
>
>
>> | To: [log in to unmask]
>>
>>
>|
>
>
>> | cc:
>>
>>
>|
>
>
>> | Subject: [TN] Golden Board Electrical test
>>
>>
>|
>
>
>>--------------------------------------------------------------------------
-
>>
>>
>-------------------|
>
>
>>
>>
>>
>>
>>Dear All,
>>
>>
>>
>> please explain me what is "Golden Board" electrical test
>>
>>
>>
>>Thanks and Regards
>>
>>
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>>Sug
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>
>
>>-----------------------------------------------------
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>>
>>
>>
>>
>>
>
>--
>Dave Seymour, CID+
>Catapult Communications Inc.
>800 Perimeter Park Dr, Suite A
>Morrisville, NC 27560
>
>Direct: (919)653-4249
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>-----------------------------------------------------
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--
Dave Seymour, CID+
Catapult Communications Inc.
800 Perimeter Park Dr, Suite A
Morrisville, NC 27560
Direct: (919)653-4249
Main: (919)653-4180
Fax: (919)653-4297
[log in to unmask]
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