Any recognised paste supplier will be able to supply dispense grade paste as this is a
recognised method of application. Dispense grades are characterised by a lower metal
content and perhaps a slight change in the mix proportions of the non metal portion of the
paste. This is to improve the rheology for dispensing. [In theory ] you should be able to
get your present paste in this form with no change in the flux activity/type which means a
minimum if any re-qualification will be required.
You might care to check your maximum powder size is 3x 5x smaller than the canula ID of
the dispense needle or you will get blockages. Alternatively, as mentioned in other posts,
hand printing in small volumes is perfectly feasible, in fact you can purchase for quite
small sums the simple equipment required if you don't feel like making up you own
"printer". Look under prototyping  or lab in your buyers guide.

Mike Fenner

----- Original Message -----
From: Ingemar Hernefjord (EMW) <[log in to unmask]>
To: <[log in to unmask]>
Sent: 03 November 1999 13:21
Subject: Re: [TN] Solder Paste Dispensing


> Vinit, try this voice number: +46 8 757 4901, ask for L.A. Olofson, he has been in the
game for 20 years, I guess he can give you advice. Or wait for ResMed's answer, as they
live 'just around the corner' for you. /Ingemar
>
>
> Hi Technetters,
>
> I am using Panasert GLue Dispenser HDP-III. Recently one of my PCBs has
> been changed to double sided one with reflow on one side. I donot want to
> invest on a solder paste printer since the volumes are not so high at this
> moment. Has anybody tried solder paste dispensing using a glue dispenser.
> What type of solder paste is to be used. (Any vendors qualified???)
>
> Any information will be highly appreciated.
>
> Regards
>
>
> Vinit Verma
> National Panasonic India Ltd.
> 510, International Trade Towers, Nehru Place
> Tel: +91-11-6292870-74     Fax: +91-11-6292877-78
>
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