If one had placed the component(s), thought on a small VPRS-system?
Peer Langeveld
Consultant Soft Soldering Processes
5502 VH 8
The Netherlands
2008/10/3 Wilson, Bob <[log in to unmask]>:
> Someone mentioned that this might be useful.
>
> Has anyone used these tools for soldering small prototype parts?
>
> http://www.zeph.com/bgarework_stations_systems_qfn_smd_hot_air_repair.ht
> m
>
> Oh, and Joe was right. It isn't a 2mm QFN part we're looking at--it is
> a 2mm SMD connector.
>
> Bob
>
> -----Original Message-----
> From: Kevin Glidden [mailto:[log in to unmask]]
> Sent: Friday, October 03, 2008 9:07 AM
> To: 'TechNet E-Mail Forum'; Wilson, Bob
> Subject: RE: [TN] IR reflow oven
>
> An old saying comes to mind....
>
> None of us is as smart as all of us.
>
> And like some many others, I contribute far less than I glean, but I
> make it
> a point to try and help those I can from my small stretch of
> experience.......
>
> Good luck!
>
> Kevin Glidden
> Manufacturing Engineer
> Luminescent Systems Inc.
>
>
> -----Original Message-----
> From: Wilson, Bob [mailto:[log in to unmask]]
> Sent: Friday, October 03, 2008 11:47 AM
> To: [log in to unmask]
> Subject: Re: [TN] IR reflow oven
>
> Thanks guys, good info.
>
> The problem we're having is occasionally we have to use 2mm pitch QFN
> parts and some small BGAs for test and proto.
>
> When we go to all the CM around here they can't just squeeze us in.
>
> The company is doing well and we're told that if we need something to
> speed us to market, get it. We thought it might be useful to have a
> small oven.
>
> I tried eBay (of course!) and I'll look into the companies mentioned.
>
> Thanks for taking the time to answer.
>
> I have to say I don't post much here, but I sure as heck read every
> post, you betcha.
>
> Amazing what I've learned! Sure is a ton of stuff that most design side
> folks don't have a clue about. Including me.
>
> Regards,
>
> Bob Wilson
> E/M Designer, CID+
> SpectraSensors, Inc.
> 11027 Arrow Route
> Rancho Cucamonga, CA 91730
> (909) 948-4110
> www.spectrasensors.com
> www.ipc.org
>
>
> -----Original Message-----
> From: TechNet [mailto:[log in to unmask]] On Behalf Of Croslin, Robert
> Sent: Friday, October 03, 2008 6:20 AM
> To: [log in to unmask]
> Subject: Re: [TN] IR reflow oven
>
> Bob, Kevin makes an excellent point about working with a good local
> contract manufacturer. We've been using a method for some years that
> has worked very well with two local CM's we deal with. We only build
> our prototype boards in house as 100% of our production is done at CM's
> domestic and offshore. We'll define the parts like BGA's and QFN's that
> we know are difficult or impossible to solder in our lab, then consign a
> small number of prototype boards over to the CM. While we're having the
> boards fabricated, we ask our CM to get a stencil made. When we receive
> the boards, we deliver them and the parts we want assembled to them.
> They stencil the board, place the parts manually, then reflow them. We
> take the boards back and finish the build by hand in our lab. The
> advantage is that there's no impact to the production line and we can
> quickly get our prototypes in the hands of engineers and software
> developers. We've used both full and partial stencils for this
> practice.
>
>
> Bob Croslin
> The Nielsen Company
>
> -----Original Message-----
> From: TechNet [mailto:[log in to unmask]] On Behalf Of Kevin Glidden
> Sent: Friday, October 03, 2008 8:33 AM
> To: [log in to unmask]
> Subject: Re: [TN] IR reflow oven
>
> Hi Bob,
>
> Yours is not a simple solution, many questions come to mind. If you are
> truly on the design side, and building assemblies is not your focus, why
> invest capital in equipment you will seldom use? You don't mention the
> actual pitch of the "PITA" component, but consider that of the SMT
> process, reflow is only 1/3 of the simplest solution. How will you
> apply paste and place the part(s)? The solder paste screening and
> placement of fine pitch components can be just as, if not more,
> challenging than the reflow process.
> You may be best served to locate and work with a good contract
> manufacturer who is willing to work with you. Most are more than
> willing to work with you from concept through prototype and production.
> This is a win-win scenario, as a good contract mfr can provide valuable
> DFM inputs and save you from design errors or needless capital
> investment.
>
> That being said, it is difficult to recommend a system for you without
> knowing your parameters. I can provide a short list of some oven
> manufacturers who may make budget-conscious systems that you are
> seeking:
>
> - APS / Novastar
> - Essemtec
> - Manncorp
>
> Be sure to also check out the used market.
>
> Good luck.
>
> Kevin
>
> -----Original Message-----
> From: Wilson, Bob [mailto:[log in to unmask]]
> Sent: Thursday, October 02, 2008 5:13 PM
> To: [log in to unmask]
> Subject: [TN] IR reflow oven
>
> Hi,
>
> Can anyone recommend a decent, small IR reflow oven, maybe in the
> $1000-$2000 dollar range?
>
> We're on the design side and trying to do these fine pitch parts in R&D
> is a PITA.
>
> Thanks!
>
> Bob Wilson
> E/M Designer, CID+
> SpectraSensors, Inc.
> 11027 Arrow Route
> Rancho Cucamonga, CA 91730
> (909) 948-4110
> www.spectrasensors.com
> www.ipc.org
>
>
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