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April 1999

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Subject:
From:
Stephen Bonaccorsi <[log in to unmask]>
Reply To:
TechNet E-Mail Forum.
Date:
Wed, 7 Apr 1999 18:09:46 +0100
Content-Type:
text/plain
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text/plain (93 lines)
Dewey

I use Siemens (Siplace) machines and get a fall out rate of chip
components of an of about  0.5%.

But have had the odd pesky ones that hover about 2%.


Stephen Bonaccorsi

> ----------
> From:         Stephen R. Gregory[SMTP:[log in to unmask]]
> Reply To:     [log in to unmask]
> Sent:         Wednesday 07 April 1999 15:47
> To:   [log in to unmask]
> Subject:      Re: [TN] SMT Component Fall Out Rate
>
> In a message dated 4/6/99 5:15:17 PM Pacific Daylight Time,
> [log in to unmask] writes:
>
> << Dewey,
>
>  I think within 2% fall out is ok for any chip shooter. I have worked
> with
>  Mydata TP9-UFP & Fuji CP6 & this is good approximation  for chip
> component
>  fallout.
>
>  Ashok Tiwari
>  SMT Engineer
>
>  > ----------
>  > From:         Access Control[SMTP:[log in to unmask]]
>  > Reply To:     TechNet E-Mail Forum.;Access Control
>  > Sent:         Tuesday, April 06, 1999 11:19 AM
>  > To:   [log in to unmask]
>  > Subject:      [TN] SMT Component Fall Out Rate
>  >
>  > Greetings,
>  >
>  > For all the SMT assemblers out there, what are your average fall
> out on
>  > std. components, ie. 1206, 1210, 2010, sot-23, melf, minimelf.
>  > I have 2 mydata machines and they run well under 2%. I wonder if 2%
> or
>  > less than 2% fall-out is too high.
>  >
>  > Thanks in advance for any input.
>  >
>  > Dewey >>
>
> Hi Dewey,
>
>      I agree with Ashok, 2% ain't bad. Actually, when we quote
> supplying
> attrition with the kits to our customers, I like to see 3%...but
> sometimes
> the buyers who supply us material think they're doing a good job when
> they
> give us exact quantities...1000 boards, 1000 parts....sheesh...
> What really kills me is when they give us the 1000 parts in 100 piece
> strips...fun stuff there...
>
> -Steve Gregory-
>
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