Inge,
They are not mixed. They are sequential layers.
Bev
RIM
----- Original Message -----
From: Inge [mailto:[log in to unmask]]
Sent: Wednesday, August 25, 2010 12:01 PM
To: [log in to unmask] <[log in to unmask]>
Subject: Re: [TN] SOLDERABLIITY ON NICKEL PLATIUM GOLD LEAD FINISH SMT PARTS
Dave,
What's the idea with mixing Nickel and Palladium on component leads? In
general, Pd is used as a substitute for Rhodium in order to increase the
wear resistance for e.g. sliding contacts. I have also seen that mixing Ni
an Pd causes an increase of the internal stress, rather much, depending on
the wt%. What pays for the extra process in this case?
/Inge
--------------------------------------------------
From: "David D. Hillman" <[log in to unmask]>
Sent: den 25 August 2010 00:21
To: <[log in to unmask]>
Subject: Re: [TN] SOLDERABLIITY ON NICKEL PLATIUM GOLD LEAD FINISH SMT PARTS
> Hi! Yes, I made the assumption that Jon really meant Pd and not Pt as I
> haven't run into a NiPtAu surface finish on components yet.
>
> Dave
>
>
>
> "Stadem, Richard D." <[log in to unmask]>
> 08/24/2010 04:54 PM
>
> To
> TechNet E-Mail Forum <[log in to unmask]>, "[log in to unmask]"
> <[log in to unmask]>, "Roberts, Jon (SA-1)"
> <[log in to unmask]>
> cc
>
> Subject
> RE: [TN] SOLDERABLIITY ON NICKEL PLATIUM GOLD LEAD FINISH SMT PARTS
>
>
>
>
>
>
> Well, jeez, Dave. You beat me to it again. Except I was busy trying to
> find my references to soldering with platinum, not palladium.
>
> -----Original Message-----
> From: TechNet [mailto:[log in to unmask]] On Behalf Of David D. Hillman
> Sent: Tuesday, August 24, 2010 4:13 PM
> To: [log in to unmask]
> Subject: Re: [TN] SOLDERABLIITY ON NICKEL PLATIUM GOLD LEAD FINISH SMT
> PARTS
>
> Hi Jon! There are a couple things to remember when dealing with NiPdAu
> surface finishes: 1) Pd diffuses very slowly into a tin/lead solder alloy.
>
> You may need to add a few seconds to your soldering process cycle time; 2)
>
> Adding an additional 5-10C of temperature will assist in the Pd diffusion
> into the tin/lead solder alloy. You may need to increase your soldering
> temperature depending on which soldering process you are using; 3) Some
> flux material are not compatible with Pd materials. You may want to try a
> different flux to see if you get an improved reaction; 4) Run a
> solderability test per IPC JSTD 002 to make sure you have an acceptable
> NiPdAu surface finish. When Texas Instruments first introduced the NiPdAu
> surface finish, we had to make slight time/temperature/flux adjustments on
>
> our typical soldering processes to obtain our expected soldering results.
> Good Luck.
>
> Dave Hillman
> Rockwell Collins
> [log in to unmask]
>
>
>
>
> "Roberts, Jon (SA-1)" <[log in to unmask]>
> Sent by: TechNet <[log in to unmask]>
> 08/24/2010 12:41 PM
> Please respond to
> TechNet E-Mail Forum <[log in to unmask]>; Please respond to
> "Roberts, Jon (SA-1)" <[log in to unmask]>
>
>
> To
> [log in to unmask]
> cc
>
> Subject
> [TN] SOLDERABLIITY ON NICKEL PLATIUM GOLD LEAD FINISH SMT PARTS
>
>
>
>
>
>
> Have any of you experience difficulty in producing an acceptable solder
> joint with Nickel platinum gold SMT lead finishes? We can rework at
> least twice to achieve an acceptable condition. Lead free part but we
> use a solder with lead. Any help is appreciated. Jon
>
>
> This communication is intended only for use by the addressee(s) named
> herein and may contain business confidential and/or legally privileged
> information. If you are not the intended recipient of this e-mail, you are
>
> hereby notified that any dissemination, distribution, disclosure or
> copying of this e-mail and its contents is strictly prohibited. If you
> have received this e-mail in error, kindly notify the sender by replying
> to this message. In addition, please permanently delete the message and
> any attachments without copying or disclosing the contents. Thank you for
> your cooperation.
> THIS DOCUMENT AND/OR SHIPMENT MAY CONTAIN COMMODITY ITEMS, SOFTWARE OR
> TECHNICAL DATA THAT IS CONTROLLED BY U.S. EXPORT LAW, AND MAY NOT BE
> EXPORTED OUTSIDE THE UNITED STATES OR TO NON U.S. PERSONS WITHOUT THE
> APPROPRIATE EXPORT LICENSE FROM EITHER THE U.S. DEPARTMENT OF STATE OR
> DEPARTMENT OF COMMERCE.
>
>
> ______________________________________________________________________
> This email has been scanned by the MessageLabs Email Security System.
> For more information please contact helpdesk at x2960 or [log in to unmask]
> ______________________________________________________________________
>
> ---------------------------------------------------
> Technet Mail List provided as a service by IPC using LISTSERV 15.0
> To unsubscribe, send a message to [log in to unmask] with following text in
> the BODY (NOT the subject field): SIGNOFF Technet
> To temporarily halt or (re-start) delivery of Technet send e-mail to
> [log in to unmask]: SET Technet NOMAIL or (MAIL)
> To receive ONE mailing per day of all the posts: send e-mail to
> [log in to unmask]: SET Technet Digest
> Search the archives of previous posts at: http://listserv.ipc.org/archives
> Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16
>
> for additional information, or contact Keach Sasamori at [log in to unmask] or
>
> 847-615-7100 ext.2815
> -----------------------------------------------------
>
>
>
> ______________________________________________________________________
> This email has been scanned by the MessageLabs Email Security System.
> For more information please contact helpdesk at x2960 or [log in to unmask]
> ______________________________________________________________________
>
> ---------------------------------------------------
> Technet Mail List provided as a service by IPC using LISTSERV 15.0
> To unsubscribe, send a message to [log in to unmask] with following text in
> the BODY (NOT the subject field): SIGNOFF Technet
> To temporarily halt or (re-start) delivery of Technet send e-mail to
> [log in to unmask]: SET Technet NOMAIL or (MAIL)
> To receive ONE mailing per day of all the posts: send e-mail to
> [log in to unmask]: SET Technet Digest
> Search the archives of previous posts at: http://listserv.ipc.org/archives
> Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16
> for additional information, or contact Keach Sasamori at [log in to unmask] or
> 847-615-7100 ext.2815
> -----------------------------------------------------
>
>
>
> ______________________________________________________________________
> This email has been scanned by the MessageLabs Email Security System.
> For more information please contact helpdesk at x2960 or [log in to unmask]
> ______________________________________________________________________
>
> ---------------------------------------------------
> Technet Mail List provided as a service by IPC using LISTSERV 15.0
> To unsubscribe, send a message to [log in to unmask] with following text in
> the BODY (NOT the subject field): SIGNOFF Technet
> To temporarily halt or (re-start) delivery of Technet send e-mail to
> [log in to unmask]: SET Technet NOMAIL or (MAIL)
> To receive ONE mailing per day of all the posts: send e-mail to
> [log in to unmask]: SET Technet Digest
> Search the archives of previous posts at: http://listserv.ipc.org/archives
> Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16
> for additional information, or contact Keach Sasamori at [log in to unmask] or
> 847-615-7100 ext.2815
> -----------------------------------------------------
______________________________________________________________________
This email has been scanned by the MessageLabs Email Security System.
For more information please contact helpdesk at x2960 or [log in to unmask]
______________________________________________________________________
---------------------------------------------------
Technet Mail List provided as a service by IPC using LISTSERV 15.0
To unsubscribe, send a message to [log in to unmask] with following text in
the BODY (NOT the subject field): SIGNOFF Technet
To temporarily halt or (re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL or (MAIL)
To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest
Search the archives of previous posts at: http://listserv.ipc.org/archives
Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815
-----------------------------------------------------
---------------------------------------------------------------------
This transmission (including any attachments) may contain confidential information, privileged material (including material protected by the solicitor-client or other applicable privileges), or constitute non-public information. Any use of this information by anyone other than the intended recipient is prohibited. If you have received this transmission in error, please immediately reply to the sender and delete this information from your system. Use, dissemination, distribution, or reproduction of this transmission by unintended recipients is not authorized and may be unlawful.
______________________________________________________________________
This email has been scanned by the MessageLabs Email Security System.
For more information please contact helpdesk at x2960 or [log in to unmask]
______________________________________________________________________
---------------------------------------------------
Technet Mail List provided as a service by IPC using LISTSERV 15.0
To unsubscribe, send a message to [log in to unmask] with following text in
the BODY (NOT the subject field): SIGNOFF Technet
To temporarily halt or (re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL or (MAIL)
To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest
Search the archives of previous posts at: http://listserv.ipc.org/archives
Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815
-----------------------------------------------------
|
