is there anything in between > that would be considered "standard" (readily available without added cost)? Not to my knowledge?. PCB shops would just buy whatever thickness materials it would take to combine with B stage pre preg to create the .045 thickness. Matt Kehoe SIPAD Systems Inc. 360-C Winkler Drive Alpharetta, GA. 30004 [log in to unmask] www.sipad.net www.sipad.com 770-475-4576 main 770-475-1597 fax 404-680-7977 cell SMTA Corporate Member ----- Original Message ----- From: "Marsico, James" <[log in to unmask]> To: <[log in to unmask]> Sent: Friday, February 13, 2004 7:19 AM Subject: Re: [TN] FR-4 standard thickness > Okay... let me rephrase my question. What would be the most common > laminate thicknesses for double-sided FR-4 material, around the .045" range. > I know that I can get .031 and .062 material, is there anything in between > that would be considered "standard" (readily available without added cost)? > > Jim Marsico > Senior Engineer > Production Engineering > EDO Electronics Systems Group > [log in to unmask] <mailto:[log in to unmask]> > 631-595-5879 > > > -----Original Message----- > From: Scott B. Westheimer [SMTP:[log in to unmask]] > Sent: Thursday, February 12, 2004 7:33 PM > To: [log in to unmask] > Subject: Re: [TN] FR-4 standard thickness > > Roger, > > "Standard" means different things to different people. IPC does not > specify > standard thickness for double sided or multilayer PCB's, that is > left up to > the product designer to meet their product fit, form and functions > needs. > What is normally considered is material availability as a industry > standard. > Certainly 0.062" thickness, in a lot of cases is used for double > sided and > boards are designed around that thickness. However some designs and > products > can not be that thick and therefore other material needs to be used. > > Scott Westheimer > > Colonial Circuits > ----- Original Message ----- > From: "Roger Stoops" <[log in to unmask]> > To: <[log in to unmask]> > Sent: Thursday, February 12, 2004 5:18 PM > Subject: Re: [TN] FR-4 standard thickness > > > 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 > ----------------------------------------------------- > > --------------------------------------------------- > 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 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