Does anyone know what surface finish is used on the Xbox-360 PCBA?
Regards,
George
George M. Wenger
Senior Principle FMA / Reliability Engineer
Wireless network Solutions
Andrew Corporation, 40 Technology Drive, Warren, NJ 07059 (908) 546-4531
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-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Whittaker, Dewey
(EHCOE)
Sent: Wednesday, July 11, 2007 12:05 PM
To: [log in to unmask]
Subject: Re: [TN] FW: [LF] Big lead-free bill for Microsoft ?
I had a friend translate and he said some experts attributed the failure
to the Lead-free Platinum, which due to the cyclic heating became
brittle.
Dewey
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of John Burke
Sent: Wednesday, July 11, 2007 8:54 AM
To: [log in to unmask]
Subject: [TN] FW: [LF] Big lead-free bill for Microsoft ?
Interesting thread and links on Microsofts billion$+ issue with X-box
failures attributed by some to joint failure due to thermal cycling see
contents and links.
John Burke
(408) 515 4992
-----Original Message-----
From: Leadfree [mailto:[log in to unmask]] On Behalf Of SCHMIDT,
WOLF-DIETER - PFHO
Sent: Tuesday, July 10, 2007 11:31 PM
To: [log in to unmask]
Subject: Re: [LF] Big lead-free bill for Microsoft ?
Hello,
I'll try to translate - hope my english will be good enogh - the parts
of the article which are most interesting with respect to lead-free:
------------------------------------------------------------------------
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--------------------------------------------------------------
While Microsoft gives no official information whether the not acceptable
high failure rates of Xbox360 depend on basic failures of the hardware
design or on untidy production. Meanwhile the people at Redmond work on
a complete redesign. This was published by Dean Takahashi, author of the
book "Opening the Xbox", in an article published by the San Jose Mercury
News.
(... some informations an the inside graphic chip design...)
The smaller size of the chip will not only lead to cheaper production
but as well to lower current consumption. This will improve the
temperature level inside the housing and lower the noise level of the
fan. Most of all the lower heat level shall reduce the number of
failures of "Red Ring of Death"
(PROD). At the moment Microsoft manages this by mounting an additional
cooling element, connected by a heatpipe to the graphic-chip-heatsink.
Experts suppose that the leadfree solder used on the board becomes
brittle due to the high number of temperature changes.
(... information on commercial aspects....)
A few days ago Microsoft announces to expand the warranty period to
three years for failures of the PROD-type ... Customers who had to pay
for repair of the PROD-failures will get their money back from
Microsoft.
Specialists
suppose that about one of three Xbox360 early or late will get that
PROD-failure.
------------------------------------------------------------------------
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----------------------------------------------------------------
That was roughly the contents of the mentioned link. At the bottom of
that article there is an other link which leads to some more details.
I'll try to catch the most interesting points of that:
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----------------------------------------------------------------
... dealers as well as customers have complained about the high failure
rate .... Microsoft will save 1.05 to 1.15 billion dollars for the
warranty program. ..... The failure rate of the Xbox360 at the start of
delivery in November 2005 was at about 50%... in between Microsoft has
delivered about 10 Million of Xbox360 worldwide. .... The warranty
program is valid not only fo the US but as well all over the world.
------------------------------------------------------------------------
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-----------------------------------------------------------------
Regards
Wolf-Dieter Schmidt
Industrial Engineering
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> -----Original Message-----
> From: Harvey Miller [mailto:[log in to unmask]]
> Sent: Wednesday, July 11, 2007 5:06 AM
> To: [log in to unmask]
> Subject: [LF] Big lead-free bill for Microsoft ?
>
>
> (from a friend, needs verification--HM)
>
> Jan Panteltje wrote:
>
> Wow, first lead-free vicim: Microsoft Xbox 1 billion damage.
> I just did read that as a cause of the Xbox problems (red ring of
> death, 3 blinking red LEDs) now the lead free solder is mentioned. It
> desintegrates over time at the high temperatures. MS fixes it by
> adding an extra fan and heatpipe. MS will make a new Xbox design
> (Falcon).
>
>
> Source (in German):
> http://www.heise.de/newsticker/meldung/92447
>
> Any chance of translating the relevant part ?
>
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