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September 1997

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Subject:
From:
Patrick Ducas <[log in to unmask]>
Reply To:
TechNet Mail Forum.
Date:
Fri, 12 Sep 1997 09:33:24 -0400
Content-Type:
text/plain
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text/plain (90 lines)
Could this workshop be presented in North America? We cannot afford to send
people overseas (cost and time) and I suppose it is the same for other
companies.

Regards  

At 07:54 PM 9/11/97 +0100, you wrote:
>The SMART Group will be running the First Public Workshop on Pin In
>Hole/Intrusive Reflow on 4th November in Milton Keynes, England. Further
>information may be obtained for the SMART Group Home Page
>http://www.smtuk.demon.co.uk
>
>Call Tony Gordon Tel: (44) 01494 465217
>Email: [log in to unmask]
>
>PIN IN HOLE/INTRUSIVE REFLOW DESIGN AND ASSEMBLY WORKSHOP
>
>Surface Mount Technology (SMT) is now part of mainstream electronic
>assembly with virtually all market sectors benefiting from the use of SMT.
>One problem that has always proved an issue to design and process engineers
>is the use of existing through hole components where no direct equivalent
>SMT parts are available.
>
>It is possible to hand solder conventional through hole components after
>surface mount assembly and soldering operations are complete. This,
>however, is time consuming and may leave more flux residues on the surface
>of the joints causing a problem to in circuit test. Many through hole parts
>are used for direct contact during test and residues can quickly clog test
>pins in a no clean process.
>
>A range of selective soldering equipment is available to either semi or
>fully automatically solder through hole leads. This does, of course,
>require capital expenditure on equipment. One method of soldering all
>surface mount and through hole components in a single operation is
>Pin-In-Hole-Reflow (PIHR) or Intrusive Reflow Soldering which simplifies
>the manufacturing process.
>
>The workshop will cover the following key points:
>
>PCB Design and Component Requirements
>Possible Assembly Stages
>PIHR Advantages and Disadvantages
>Paste Application by:
>        Stencil Printing
>        Double Stencil Print
>        Paste Dispensing
>Stencil Aperture Calculations
>Solder Pallet Support
>Reflow Soldering Profiles
>Inspection Requirements
>Microsection Analysis
>Evaluation Results
>Process Defects
>
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additional information.
>For the technical support contact Dmitriy Sklyar at [log in to unmask] or
847-509-9700 ext.311
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>
-------------------------------------------------
Patrick Ducas
Process Quality Engineer 
Matrox Electronic Systems Ltd
E-mail: [log in to unmask]
Tél:(514)969-6000 ext.2971   Fax:(514)685-3415
-------------------------------------------------
        	

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