Subject: | |
From: | |
Reply To: | |
Date: | Fri, 20 Aug 2004 07:33:07 -0400 |
Content-Type: | text/plain |
Parts/Attachments: |
|
|
I would look at Arlons 25N.
http://www.arlon-med.com/micro.html
Jeffrey Bush
Director, Quality Assurance and Technical Support
76 Technology Drive - POB 1890
Brattleboro, Vermont 05302-1890
Tel. 802.257.4571.21 Fax. 802.257.0011
[log in to unmask]
http://www.vtcircuits.com
-----Original Message-----
From: Colin Weber [mailto:[log in to unmask]]
Sent: Friday, August 20, 2004 12:37 AM
To: [log in to unmask]
Subject: [TN] Search for HF Laminate Material
Hi Folks,
Does anybody know of a material which can meet or exceed the following
specifications for a Rogers RO4003C, which has UL approval (94V-0)?
Dielectric Constant 3.38 +-0.05
Dissipation Factor tan 0.0027/0.0021
Temperature Coefficient +40 ppm/deg. C
Coefficient of Thermal Expansion x=11, Y=14, Z=46 ppm/deg. C water
absorption 0.04%
FR4 standard Processing
The application is for making capacitors out of PCB material. The Rogers
RO4350B UL material did not perform as well as the RO4003C.
Regards,
Colin Weber
---------------------------------------------------
Technet Mail List provided as a service by IPC using LISTSERV 1.8e 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
847-509-9700 ext.5315
-----------------------------------------------------
---------------------------------------------------
Technet Mail List provided as a service by IPC using LISTSERV 1.8e
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 847-509-9700 ext.5315
-----------------------------------------------------
|
|
|