Yes, that is the opinion I share...is that written somewhere though... When it is not specified...what criteria is followed??? Franklin ----- Original Message ----- From: "Scott Westheimer" <[log in to unmask]> To: <[log in to unmask]> Sent: Monday, March 03, 2003 8:52 AM Subject: Re: [TN] PC Board thickness measurement > Franklin, > > Thickness is usually defined by customer as well as where the measurements > are to be taken. It may state glass to glass, metal to metal or mask to > mask. > > Scott B. Westheimer > General Manager, > Gultech North Carolina > 5800 McHines Place > Raleigh, North Carolina 27616 > Phone: (919)872-0100 > Fax: (919)713-4849 > Cell: (919)649-1510 > Toll Free: 1-866-gultech > [log in to unmask] > Web Page: www.gultechna.com > ----- Original Message ----- > From: "Franklin D Asbell" <[log in to unmask]> > To: <[log in to unmask]> > Sent: Monday, March 03, 2003 9:49 AM > Subject: [TN] PC Board thickness measurement > > > > In what IPC specification is board thickness measurement (location) > > referenced? > > > > I'm looking for where overall thickness is mentioned. I'm receiving > > conflicting information on whether the required board thickness is to be > > measured over foil copper (multilayer, after layup), over > soldermask/glass, > > or over final finish. > > > > And is there information differentiating between OSP or flat coatings and > > HASL or reflow if final thickness is measured over...final finish... > > > > Thanks. > > > > Franklin > > > > --------------------------------------------------- > > Technet Mail List provided as a free 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/html/forum.htm for additional > > information, or 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 1.8e > 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/html/forum.htm for additional > information, or 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 1.8e 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/html/forum.htm for additional information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315 -----------------------------------------------------