Subject: | |
From: | |
Reply To: | |
Date: | Fri, 11 Mar 2011 13:32:40 +0100 |
Content-Type: | text/plain |
Parts/Attachments: |
|
|
Phil,
we had a look at them very early when Big Blue introduced them, and they had
indeed some interesting properties, but, to make a long story short, they
were too expensive. Our two primary objectivs were resistance against
extreme temperature change and also a very high heat dissipation capability.
However, both these are well met with ordinary BGAS. Additionally, the
semiconductor designers have been better on doing a lot with low power
consumption.
Inge
PS If I remember correctly, flux removal was a problem.
On 10 March 2011 19:23, Phil Bavaro <[log in to unmask]> wrote:
> Are there a lot of Technet folks using Ceramic Column Grid Arrays?
>
>
>
> Somehow I have managed to dodge that bullet until now. In the telecom
> arena, my impression was it was better to keep my designs limited to
> BGAs but I suspect that things might have changed now that I am dealing
> with hi-rel designs.
>
>
>
> Any advice is appreciated.
>
>
>
> Phil
>
>
>
> ------------------------------------------------------------------------------
> This message and any attachments are solely for the use of the addressee
> and may contain L-3 proprietary information that may also be defined as USG
> export controlled technical data. If you are not the intended recipient, any
> disclosure, use or distribution of its content is prohibited. Please notify
> the sender by reply e-mail and immediately delete this message and any
> attachments.
>
>
>
>
> ______________________________________________________________________
> 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.aspx?Pageid=E-mail-Forums 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.aspx?Pageid=E-mail-Forums for additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815
-----------------------------------------------------
|
|
|