James,
Have you or would you ever consider making your estimate tool available to others in some form such as shareware for us less experienced designers to use?
I understand if you're not willing or able for whatever reason you may have.
Thanks,
Bob Harter
PCB Designer
Paratek Microwave, Inc.
(443)259-0140 ext 278
-----Original Message-----
From: DesignerCouncil on behalf of James Jackson
Sent: Fri 5/20/2005 5:24 PM
To: [log in to unmask]
Cc:
Subject: Re: [DC] How would you quote this board?
Gary,
I would still need the X and Y dimensions of the PCB.
If unknown... I could make a guess - but as you know, the smaller the PCB -
the more difficult it becomes.
Also - I only need the Number of Pads used in Patterns. You have given me a
Total number of Pads... which would include Vias. This tends to
over-estimate the time required for a job.
Using a PCB of 10" x 10" (Hey! I had to plug in SOMEthing!!) I get about 4.3
weeks - with an assumption of 5000 Pins for Patterns. (I guessed that the
other 6958 were vias).
The Schematic was estimated at about 15 Days. (That's in addition to the PCB
estimate - not included with the PCB layout estimate of 4.3 weeks.)
Again... if provided with the proper info - I can pretty much give a good
estimate. Otherwise - it's just a guess.
Regards,
James Jackson
Oztronics
-----Original Message-----
From: DesignerCouncil [mailto:[log in to unmask]]On Behalf Of Gary
Eckman
Sent: Friday, May 20, 2005 2:09 PM
To: [log in to unmask]
Subject: Re: [DC] How would you quote this board?
Part Types: 65
Parts: 3071
Drilled pads: 944 Undrilled pads: 11014 Total: 11958
Vias 8763
Signal Nets: 2766
Connections Routed: 5131
Plane Nets: 20
Connections Routed: 3510
Number of Layers: 8 (4sig, 4pln)
All parts were from library, netlist from schematic, engineer estimated
2 weeks for schematic.
-----Original Message-----
From: DesignerCouncil [mailto:[log in to unmask]] On Behalf Of
James Jackson
Sent: Friday, May 20, 2005 2:55 PM
To: [log in to unmask]
Subject: Re: [DC] How would you quote this board?
Gary,
The original post contained enough information to give a quote on time.
I looked at your information... and did not have enough meaningful
information to give you a comparison of what the numbers would be for
your
particular design - which is different from the original posters'.
I would need -
X Dim - of PCB
Y Dim - of PCB
Number of Pins
SMT, TH or Both
>From that, I can give you an estimate.
The estimates that I give include creating components/Patterns, all the
way
through generating Gerbers and Post-processor Drill Drawings.
(Basically, a
deliverable package)
Regards,
James Jackson
Oztronics
-----Original Message-----
From: DesignerCouncil [mailto:[log in to unmask]]On Behalf Of Gary
Eckman
Sent: Friday, May 20, 2005 1:37 PM
To: [log in to unmask]
Subject: Re: [DC] How would you quote this board?
Are you estimating this using what software?
One example of design we did was 2700 nets, 3071 comp
4 plane, 4 signals, .08 density and it was about 3 weeks from start to
finish using pads-layout version 2005sp2
-----Original Message-----
From: DesignerCouncil [mailto:[log in to unmask]] On Behalf Of
Andre Demers
Sent: Friday, May 20, 2005 2:03 PM
To: [log in to unmask]
Subject: Re: [DC] How would you quote this board?
I agree with James estimate ...
It sounds to me like a 3 to 4 month job for a single layout person to
do.
The only way to get a faster delivery would be to have multiple shifts
and/or concurrent designing.
Good luck with the project.
Regards,
Andre Demers, C.I.D.
Senior PCB Designer, Coordinator
cmrsummit Technologies
329 March Road, Suite 203
Kanata ON K2K 2E1
Canada
Telephone: 613.599.3881
Toll Free: 877.428.1229
Pager: 613.368.0506
Fax: 613.599.7889
[log in to unmask] <mailto:[log in to unmask]>
www.cmrsummit.com <http://www.cmrsummit.com/>
-----Original Message-----
From: DesignerCouncil [mailto:[log in to unmask]]On Behalf Of James
Jackson
Sent: May 20, 2005 1:52 PM
To: [log in to unmask]
Subject: Re: [DC] How would you quote this board?
Gary,
I'm not sure what others will reply to this... but my estimate would be
about 620 Hours to do this board.
I realize that may seem like an enormous amount of time... even with
using
an Auto-Router... but that's what my PCB Layout Calculator crunched out
for
me.
It is a very dense board, and has a lot of 'restrictions'.
By the way... I have NO idea if this is 'standard' in the 'industry'.
I'm
sure you'll get some hot-shot to quote 2 weeks... but I'd be wary of
anything like that.
Regards,
James Jackson
Oztronics
-----Original Message-----
From: DesignerCouncil [mailto:[log in to unmask]]On Behalf Of Gary
Crowell
Sent: Friday, May 20, 2005 12:24 PM
To: [log in to unmask]
Subject: [DC] How would you quote this board?
Since we are a 'captive shop' here at Micron, we have only a very shaky
frame of reference with which to judge how our work compares with other
layout designers. One of our designers was worried that we (and
himself, specifically) might be falling behind what might be considered
'standard' in the industry. I was hoping some of you might respond with
the man-hour estimate you might quote for the following board:
2800 components; top & bot placement allowed, few placement restrictions
~20,000 pads/pins, 95% SMT
Usable area: 130 in2
Routing layers: 8 internal routing, top&bottom
Plane layers: 10 power/gnd planes; 6 voltages distributed on split
planes
Trace/space: 4/6 mil
Via drill/pad: 10/20 mil
4200 nets; ~80% involve matched lengths and/or differential routing
Major components: 1020 ball 1mm BGA, 1508 ball 1mm BGA, 1072 ball 1.27mm
BGA, 2x SODIMM sockets, 12 HD connectors
All digital; no analog
A full-feature SPECCTRA router is available.
Thanks
Gary Crowell CID
Micron Technology
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