So you're saying it was a "run of the mil" definition. Dewey -----Original Message----- From: TestCoupons [mailto:[log in to unmask]] On Behalf Of Lionel Fullwood Sent: Tuesday, February 17, 2009 12:27 AM To: [log in to unmask] Subject: Re: [TC] [IPC-600-6012] Microvias Hi Gary: This is one of the most confusing conventions. In the USA, 'mil' is 0.001". Internationally it is different. I would guess Chris is saying the USA definition. We need this one carefully defined so there is no further confusion. Lionel. Gary Ferrari <GaryFerrari@FTG To: [log in to unmask] CORP.COM> cc: Sent by: bcc: TestCoupons Subject: Re: [TC] [IPC-600-6012] Microvias <TestCoupons@ipc .org> 02/16/2009 10:38 PM Please respond to GaryFerrari Chris, Is "mil" a "mm" or "0.001inch"? The international definition of a "mil" is "mm". Gary Chris Mahanna wrote: > Mike et al, > > Here is a second completed action from our meeting last week. A proposed definition for 2221, 6012 and T-50I: > ---------------------------- > D+ (D-plus): The difference in diameter between a drilled, or otherwise formed hole, and its associated circular land. The unit of measure used with this term is almost exclusively a mil. For example, a 13 mil drill into a 25 mil land would be described as a "D+12". > ---------------------------- > > > Thanks, > Chris > > > Chris Mahanna > Robisan Laboratory Inc. > 6502 E 21st Street > Indianapolis, Indiana 46219 > 317.353.6249 > ** Email Disclaimer ** This message and any attachments are confidential and are intended only for the use of the addressee. If you are not the intended recipient, you should not disseminate, distribute or copy this communication. If you have received this communication in error, please notify us immediately by return email and delete the original message. We use virus scanning software but exclude all liability for viruses or similar in any attachment. Thank you. --------------------------------------------------- Technet Mail List provided as a service by IPC using LISTSERV 15.0 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 847-615-7100 ext.2815 -----------------------------------------------------