Okay, I have a "newbie" type of question:

What are the "standard" thicknesses for double-sided boards?

And then the type of questions I ask when it's been a rough week:

Who determines the standard?  Has IPC determined a standard?

I would like to know so I can tuck it away in my quickly growing files of pcb flotsam and jetsam...

Have a good one! (Time to call it a day)

Roger M. Stoops, CID+
Trimble Navigation Ltd., Dayton, OH, USA
Ph: +01 937.245.5288
Fax: +01 937.233.7511


-----Original Message-----
From: TechNet [mailto:[log in to unmask]]On Behalf Of Scott B. Westheimer
Sent: Thursday, February 12, 2004 3:48 PM
To: [log in to unmask]
Subject: Re: [TN] FR-4 standard thickness


James,

This is not a standard thickness if you are taking about a double sided PCB.
However if it is a multilayer and depending on how many layers it has it is
possible to get your required thickness. Most likely if you are talking
double sided than it will either be specially made by a laminate
manufacturer or the PCB fabricator. If the laminator makes it, it might be
expensive depending on the quantity needed.. It might be best to allow the
fabricator to make the material as it should cost less.

Scott Westheimer

Colonial Circuits
----- Original Message -----
From: "Marsico, James" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Thursday, February 12, 2004 3:04 PM
Subject: [TN] FR-4 standard thickness


> Good day Technet:
> Our designers are designing a PWB using IPC 4101/24 (FR406) material
that's
> .045" thick.  Is this a standard thickness that is readily available?
>
> Jim Marsico
> Senior Engineer
> Production Engineering
> EDO Electronics Systems Group
> [log in to unmask] <mailto:[log in to unmask]>
> 631-595-5879
>
> ---------------------------------------------------
> 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
-----------------------------------------------------

---------------------------------------------------
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
-----------------------------------------------------