Lead free HASL..... we use SN100 CL
James Hofer
Director of Operations
Accurate Circuit Engineering
3019 S. Kilson Dr.
Santa Ana Ca. 92707-4202
714-546-2162 work
714-473-6127 cell
[log in to unmask]
----- Original Message -----
From: "Johnson, Joseph" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Tuesday, February 15, 2005 7:57 AM
Subject: Re: [TN] OSP process for PCB
> Lead Free HASL!!!???? Do you have a vendor that will do this!? If so
what
> is it really called.
>
> Anyway....
> We have went to Immersion Tin on all our boards. 1 Year ago this was a
> large cost adder to the board because the circuit board vendors only did
> Immersion Tin on Thursdays. Now they have so much volume of it they are
> able to keep the line running constantly. The price has also come back
down
> to just about what a HASL board was.
>
> Since you are not supposed to use OSP's (I assume because of shelf life
and
> other issues with OSP's) the only logical choice is Immersion Tin at this
> point in time. There are a few others like flash gold and some others but
> the general population I believe is leaning toward Tin....
>
> We also like it because it is very flat and if you have fine pitch parts
it
> is almost needed in production.
>
> Joe J.
>
>
> -----Original Message-----
> From: TechNet [mailto:[log in to unmask]] On Behalf Of Pete Lymn
> Sent: Tuesday, February 15, 2005 10:40 AM
> To: [log in to unmask]
> Subject: Re: [TN] OSP process for PCB
>
> Have you considered lead free hasl?
>
> -----Original Message-----
> From: Matthew Lamkin [mailto:[log in to unmask]]
> Sent: Tuesday, February 15, 2005 2:57 PM
> To: [log in to unmask]
> Subject: Re: [TN] OSP process for PCB
>
>
> Special applications such as?
>
> I have the task of coming up with the lead free finishes that we are going
> to use. OSP will NOT be one of them (I have been told not to use it).
>
> Changing to lead free has removed a few PCB suppliers from our lists.
>
> Thank you,
> Matthew Lamkin.
>
>
>
> -----Original Message-----
> From: TechNet [mailto:[log in to unmask]]On Behalf Of George Milad
> Sent: Tuesday, February 15, 2005 2:48 PM
> To: [log in to unmask]
> Subject: Re: [TN] OSP process for PCB
>
>
> Immersion Tin is in use as a surface finish for specific applicatios, it
is
> not classified as an OSP (organic solderability preservative). Some common
> OSPs are Benzotriazoles, Immidazoles and Benzimidazoles. they are non
> metallic, organic compounds. Hope this is helpful.
>
> Best regards
>
> George Milad
> [log in to unmask]
> National Accounts Manager for Technology Uyemura International
Corporation
> Technical Center 240 Town LIne Rd Southington CT 06489
> (516) 901 3874 (mobile)
> (860) 793-4011 (office)
> (860) 793-4020 (fax)
>
>
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