Hmmm,
A real walking tutorial!
Chapter1: The first steps in PCB designers' life.
You'll never forget this.
;o)

Mira

--- Brad Velander <[EMAIL PROTECTED]> wrote:
> Waheed,
>       whether or not you realize it at the moment, you
> are entering a
> complex world of detailed design issues. It is a bit
> overwhelming at first
> but the key to success is knowledge. Study
> everything that you can get your
> hands on, talk at lengths with your intended PCB
> fabricator. The details are
> not that complicated once the basic understanding is
> established. I would
> suggest that a tour of a PCB fabricators facility is
> called for, a designer
> has to build an understanding of how a PCB is
> fabricated. This knowledge
> will allow you to understand the decisions that you
> make and how they will
> impact the manufacture of the PCB board. One tour
> will start you on the
> path, many more hours of study and probably several
> more tours will prove
> fruitful.
> 
> General Process flow.
> 
> 1)    Identify components to be used.
> 2)    Create schematic symbols, create PCB footprints
> (land patterns)
> 3)    Design schematics, connect symbols to represent
> circuit
> connectivity.
> 4)    Run ERC (Electrical Rules Check) on schematic,
> correct errors.
> 5)    Port netlist (footprint and connectivity
> information) over to PCB
> design.
> 6)    Configure DRC (Design Rules Check) according to
> technology being
> utilized in the PCB fabrication.
> 6)    Place PCB Footprints in desired PCB locations.
> 7)    Route (connect with traces) the connections
> between all pins of the
> components.
> 8)    Run DRC (Design Rules Check) to assure design
> conforms with the
> rules configured.
> 9)    Configure & generate CAM (Computer Aided
> Manufacturing) files,
> multiple Gerber layers and drill files.
> 10)   Document PCB fabrication details for the
> fabricator either in a
> ReadMe text file or a Fab drawing.
> 11)   Zip all CAM and documentation files for transfer
> to PCB fabricator.
> 
> Additional steps for uninitiated PCB designers.(All
> in fun!)
> 12)   Cross fingers and toes in the hope that your PCB
> is usable upon
> arrival.
> 13)   Pay a significant chunk of money to fabricator.
> 14)   Receive your first PCB.
> 15)   Hit head against wall with sufficient force to
> knock oneself
> unconscious when you discover stupid mistakes or
> failures in your design.
> 16)   Consider another profession because it seems
> that there is too much
> to designing PCBs for your to ever fully comprehend
> it.
> 17)   Find out that your friendly CAD vendor is not so
> friendly when you
> talk about returning their software for a refund so
> you can go take a course
> in Rocket Science.
> 18)   Resign yourself to the fact that you will
> eventually perciveer in
> understanding this PCB design stuff and put your
> nose back in place at the
> center of your monitor and get back down to
> business.
> 
> The above steps are a general guide to the process,
> the details for each
> step could cover chapters in a book. Some books
> which take a stab at
> defining all of these issues are 400 - 600 pages,
> they are not absolutely
> complete. I would suggest that you obtain a book
> called "Printed Circuits
> Handbook - 5th Edition"  by Clyde F. Coombs, Jr.. It
> is almost the defacto
> standard new designers guide. Amazon.com has a
> listing for a used version at
> $23.13 USD.
> 
> 
> Waheed, if you could enlighten us as to you general
> location. Any number of
> subscribers would aptly share with you all known
> locations of courses and
> seminars where you could increase your knowledge at
> an exponential pace
> verses self learning. Are you doing this as a hobby
> or as an intended
> career? What is your electronic background? Are you
> aware of the IPC design
> guides for PCB design? Are you aware of what the IPC
> documents cost, they
> aren't cheap?
> 
> Hope all of this helps you somehow!
> 
> Sincerely,
> Brad Velander.
> 
> Lead PCB Designer
> Norsat International Inc.
> Microwave Products
> Tel   (604) 292-9089 (direct line)
> Fax  (604) 292-9010
> email: [EMAIL PROTECTED]
> http://www.norsat.com
> 
> Visit us at Booth 2G2-09 at CommunicAsia 2002 in
> Singapore June 18-21.
> 
> 
> 
> > -----Original Message-----
> > From: Waheed Bajwa [mailto:[EMAIL PROTECTED]]
> > Sent: Thursday, May 16, 2002 4:31 AM
> > To: Protel EDA Forum
> > Subject: [PEDA] New to Protel and PCB Designing
> > 
> > 
> > Hello all,
> > 
> > I am new to PCB designing and Protel (99 SE with
> SP 6)...  I have just
> > started on the training manuals of protel. I am
> getting the 
> > grasp of it but
> > what i have noticed during this period is that i
> lack the 
> > basic cycle flow
> > involved in PCB designing so please could some one
> guide me 
> > in this? The
> > cycles that are involved in PCB designing from
> conceptual to 
> > the realization
> > of PCB (as a material thing)... Please use simple 
> > terminologies or try to
> > explain them as I said that I am new to it and
> words even 
> > like footprints
> > dont make sense to me right now :(
> > 
> > Thanx,
> > Waheed Bajwa
> > 
> 
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