Nils,
The item number 4 seems to be the major factor against DFM.
In the previous company we had a closed loop system that allows good DFM
practices without fighting each others.
Basically we had one centralized CAD system to be used for all designers,
the library is the same for all plants of division.During the assembly if
some improvement can be done this information will be discussed in a
conference call with all manufactures people, if the proposal is aproved the
upgraded is done in CAD library, so next time the design try to make the
same layout will cause rule violation and only the aproved design will be
allowed. Pad design for new components can be tested in laboratory or in
first board release during pilot test. This is a continuos improvement
system that avoid mistakes.
Design and manufacture are linked by the CAD library and a good team work
keep things working smoothly ...
Thanks
> -----Original Message-----
> From: Nils de Caluwe [SMTP:[log in to unmask]]
> Sent: 14 de Setembro de 1999 04:34
> To: [log in to unmask]
> Subject: [TN] communication between design and manufacture
>
> Hello all,
>
> I've been one of the silent watchers of this forum for a while now but I
>
> decided to come out and ask some questions as well, so here goes:
>
> We are running a project here at the university of salford in the UK
> regarding implementing design for manufacture and test rules and
> guidelines and as such I have been looking at the communication (or lack
>
> of) between design and manufacturing in the electronics industry.
>
> During my research, mostly through interviews with people in the
> electronics industry I have recognised a number of possible reasons of
> why this communication is lacking and I'm looking for recognition,
> feedback or further examples of barriers.
>
> The reasons I came across are:
> 1: (physical) distances between companies (even though electronic means
> are available, a lot of people communicate better face to face)
> 2: fear of asking questions (people might not be sure of things but are
> afraid to ask because they think they may look stupid or not up to their
>
> job)
> 3: fear of giving away information (when working with a number of other
> companies, people might be afraid to give away too much information out
> of fear it may end up with their competitors)
> 4: the 'us' and 'them' syndrome (lack of appreciation or understanding
> between disciplines of designers/layout people, bare board manufacturers
>
> and assembly manufacturers)
>
> I know this is a very generic question, but I've noted several
> conversations on the subject, usually related to a direct technical
> problem, and it seems to me that this forum is a very good source of
> information because most people on here deal with these issues every
> day.
>
> I appreciate any feedback!
>
> cheers,
>
> Nils
>
> --
> ***********************************************************
> Nils de Caluwe
> Ing.
> Research Assistant
>
> Department of Aeronautical, Mechanical and Manufacturing Engineering
> The University of Salford
> Salford, Manchester, M5 4WT, United Kingdom
> Newton Building, Manufacturing Lab.
> Tel: +44 - 161 - 295 4562 Fax: +44 - 161 - 295 5575
> Website: http://www.salford.ac.uk/rdmm/ims/Midas1.htm
> ***********************************************************
> Life is what happens while you were busy making other plans
> ***********************************************************
>
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