Content-Type: |
text/plain; charset="iso-8859-1" |
Sender: |
|
Subject: |
|
From: |
|
Date: |
Fri, 12 May 2000 14:06:52 -0500 |
MIME-Version: |
1.0 |
X-To: |
|
Reply-To: |
|
Parts/Attachments: |
|
|
Yes, I would mean 'permittivity'. Thanks for the correction, guess I'll
eventually get there.
Barbara
-----Original Message-----
From: Phil Crepeau [mailto:[log in to unmask]]
Sent: Friday, May 12, 2000 1:47 PM
To: [log in to unmask]
Subject: Re: [TN] Fr4 Board materials have a permeability of?
hi,
could you possibly mean permittivity rather that permeability? permittivity
is commonly known as dielectric constant. i would expect permeability to be
meaningless with fr-4; it isn't ferromagnetic.
phil
-----Original Message-----
From: Barbara Burcham [mailto:[log in to unmask]]
Sent: Friday, May 12, 2000 11:09 AM
To: [log in to unmask]
Subject: [TN] Fr4 Board materials have a permeability of?
I was unclear when I asked this question, earlier.
Can anyone tell me how to find the permability of the FR4 family of board
materials in relationship to frequency?
Barbara Burcham
##############################################################
TechNet Mail List provided as a free service by IPC using LISTSERV 1.8c
##############################################################
To subscribe/unsubscribe, send a message to [log in to unmask] with following
text in
the body:
To subscribe: SUBSCRIBE TECHNET <your full name>
To unsubscribe: SIGNOFF TECHNET
##############################################################
Please visit IPC web site (http://www.ipc.org/html/forum.htm) for additional
information.
If you need assistance - contact Keach Sasamori at [log in to unmask] or
847-509-9700 ext.5315
##############################################################
##############################################################
TechNet Mail List provided as a free service by IPC using LISTSERV 1.8c
##############################################################
To subscribe/unsubscribe, send a message to [log in to unmask] with following
text in
the body:
To subscribe: SUBSCRIBE TECHNET <your full name>
To unsubscribe: SIGNOFF TECHNET
##############################################################
Please visit IPC web site (http://www.ipc.org/html/forum.htm) for additional
information.
If you need assistance - contact Keach Sasamori at [log in to unmask] or
847-509-9700 ext.5315
##############################################################
##############################################################
TechNet Mail List provided as a free service by IPC using LISTSERV 1.8c
##############################################################
To subscribe/unsubscribe, send a message to [log in to unmask] with following text in
the body:
To subscribe: SUBSCRIBE TECHNET <your full name>
To unsubscribe: SIGNOFF TECHNET
##############################################################
Please visit IPC web site (http://www.ipc.org/html/forum.htm) for additional
information.
If you need assistance - contact Keach Sasamori at [log in to unmask] or
847-509-9700 ext.5315
##############################################################
|
|
|