Hi all, I like an antistatic polyimide or Kapton tape. Despite the manufacturer's claims, the tape can exhibit a little triboelectric charge when peeled quickly. But since it is widely used in masking applications without incident, it seems a reasonably safe choice for the outside of JEDEC trays. If still in doubt about something sensitive, carefully place the stack of trays inside a shielding bag and then wrap tightly with tape. Now you might as well use duct tape. Best Regards, Brad Vanderhoof AITI ----- Original Message ----- From: "Eric Dawson" <[log in to unmask]> To: <[log in to unmask]> Sent: Friday, April 25, 2003 12:51 AM Subject: Re: [TN] Velcro straps for matrix trays? Hi Graham, Having been responsible for starting the recent discussion on abbreviations, I will be careful how I answer this query. We receive matrix trays with Velcro strips securing them. The strips are black and give the appearance of being made of a conductive material. But not so. I have measured 100kV static when removing the strips quickly and 20kV when taking them off slowly. I prefer elastic bands, they generate a little static but they are not in the same league as the Velcro. Regards Eric Dawson > -----Original Message----- > From: Collins Graham [SMTP:[log in to unmask]] > Sent: Thursday, April 24, 2003 5:58 PM > To: [log in to unmask] > Subject: [TN] velcro straps for matrix trays? > > Good day Technet! > A politically correct, abbreviation free question today. Nah, forget > that! I don't have time to avoid acronyms. > > We have a problem with very expensive QFPs - they arrive on trays, and > at some point either internally, or externally when we send them out for > tinning, they are badly packaged. The matrix trays have in some cases > has been held together less than firmly - elastic bands, for example. > > So - I'm looking for a source for velcro straps to put on matrix trays. > A mundane question for such a highly technical body, but hopefully > someone can shoot me the one liner "buy 'em from..." > > On a less serious note, how do we know that Jason and Steve Gregory are > not the same person? Anyone ever seen them together? Maybe Jason > Gregory is the good twin and Steve "Jaegermeister" Gregory is the bad > one??? The answers "it depends", "to quote St. Doug, 'it depends'", or > "they aren't the same, and we can't get broadband access for our > commodore PET computers in Cypress" are not acceptable. If you run a > Steve Gregory through a Westek Triton V inline cleaner, Strap an AutoSIR > to him, and then check him in a Contaminometer, what results would you > find? > > Have a good day all. TTFN! > > > regards, > > Graham Collins > Process Engineer, > Northrop Grumman Canada Corporation > Halifax > (902) 873-2000 ext 6215 > > --------------------------------------------------- > 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 -----------------------------------------------------