Q21: add operation and test temp range are outside the commercial product , I.e. Differ significantly from the office enviroment product.
Graham, excellent answer. My hats off.
Jk
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----- Original Message -----
From: TechNet <[log in to unmask]>
To: [log in to unmask] <[log in to unmask]>
Sent: Wed Apr 02 02:18:53 2008
Subject: Re: [TN] Various questions
Habib
As Dr Christian has already pointed out, you ask too much - you should
attend our meetings to get a better understanding of the issues you
raise.
However, trying to be helpful, let me answer you briefly on each your
questions:
On 1 Apr 2008, at 15:14, SAHLI habib wrote:
> Is there someone who wants to answer my questions?
>
> Best regards.
> ----- Original Message -----
> From: SAHLI habib
> To: [log in to unmask]
> Sent: Thursday, March 20, 2008 1:01 PM
> Subject: Various questions
>
>
> Dear Technetters,
>
> Can I have the privelege to get brief answers to all my following
> questions :
>
> 1- Main copper thickness used in Automotive market?
As thin as possible
>
> 2- Does Automotive market is asking for copper thickness reduction?
Yes.
>
> 3- What is the standard maximum and minimum bow and twist for Pcbs
> with BGA components?
Very little.
>
> 4- What is the standard tolerance for press-fit PTH?
Small.
>
> 5- When is panel plating suggested and When is pattern plating
> suggested?
Refer to standards.
>
> 6- What is the standard value for annular ring for Pcbs with high
> copper thicknes (more than 3 oz)?
Refer to standards.
>
> 7- Is AOI detecting all the PCB defects?
No.
> What defects are not detected?
Those that are not detectable by AOI method
>
> 8- Is the automotive market requesting 100% AOI in internal and
> external layers?
Maybe.
>
> 9- What the is the maximum offset between copper and solder mask
> requested in the automotive market?
Refer to standards.
>
> 10- What the is the maximum offset between copper,solder mask and
> holes requested in the automotive market?
Refer to standards.
>
> 11- What is the main surface finish for Automotive?
OSP - ENIG - HASL - ImSn - it depends on the application.
>
> 12- What product application is used OSP for?
It depends
>
> 13- What product application is used ENIG for?
It depends
>
> 14- What product application is used Immersion Silver for?
It depends
>
> 15- Is Screen printing in use for Automotive market?
Probably
>
> 16- Is Screen printing used to mark code matrix?
Sometimes
>
> 17- What is the maximum accepted value of Ionic contamination in
> Automotive market. (µg Na Cl/square for inch)
Often <0.2mg/cm2 NaCl equivalence
>
> 18- Are customers requesting Ioni chromatography or any other
> similar analysis?
Yes.
>
> 19- Is the automotive market requesting PEA packaging (Electrostatic
> Protected Area)?
Usually.
>
> 20- Is Pollution gas test required for Automotive market?
Yes but not always.
>
> 21- What are the Significant Characteristics defined by Automotive
> market?
High reliability.
>
> 22- What are the main characteristics for satndard FR4 base material?
Flame retardance.
>
> 23- What are the main characteristics for lead free base material?
?
>
>
> Thank you in advance for your support.
>
> Habib
>
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