10k water is pretty dirty, did you mean 100k? How does 2 Mohm cm water compare with 8 Mohm cm? To be honest, I've yet to hear a plausible scientific explanation of "hungry" water based on solubility/adsorption equilibria or kinetic theory rather than anecdotal evidence. Karen Tellefsen - Electrical Testing [log in to unmask] 908-791-3069 Re: [TN] The iPhone Economy (from NY Times)--BACKGROUND FACTS & HISTORY FIRST Paul Edwards to: TechNet 01/24/2012 02:02 PM Sent by: TechNet <[log in to unmask]> Please respond to TechNet E-Mail Forum, Paul Edwards 2 Places... 1) I get boards that don't pass functional test when I wash at less than 10k water and pass at any thing above 8Meg (also have the same result with GPUs) 2) Looking at composite solubility curves for city water verses DI water Any water will wash off solublized material or "mud" because it is on the PCB but for stuff that is attached to the PCB with an electrostatic bond you need "more power"... Paul Paul Edwards Process/Quality Engineering Surface Art Engineering -----Original Message----- From: Robert Kondner [mailto:[log in to unmask]] Sent: Tuesday, January 24, 2012 10:44 AM To: 'TechNet E-Mail Forum'; Paul Edwards Subject: RE: [TN] The iPhone Economy (from NY Times)--BACKGROUND FACTS & HISTORY FIRST Paul, That is a new thought. Where did that information come from? Bob K. -----Original Message----- From: TechNet [mailto:[log in to unmask]] On Behalf Of Paul Edwards Sent: Tuesday, January 24, 2012 1:23 PM To: [log in to unmask] Subject: Re: [TN] The iPhone Economy (from NY Times)--BACKGROUND FACTS & HISTORY FIRST Joyce, Di water would be better because it more typically readily absorbs more and weaker positively and negatively charged ionics then city water... When the city water has been loaded with Cl and F compounds then the ionic absorption balance changes... Paul Paul Edwards Process/Quality Engineering Surface Art Engineering -----Original Message----- From: TechNet [mailto:[log in to unmask]] On Behalf Of Joyce Koo Sent: Tuesday, January 24, 2012 8:33 AM To: [log in to unmask] Subject: Re: [TN] The iPhone Economy (from NY Times)--BACKGROUND FACTS & HISTORY FIRST Brian, Can you kindly refresh my memory: why DI washing is better than city water? (don't ask me why I need to know. I just need expert voice). Many thanks (buy you a glass of wine when we meet). Joyce Koo Materials Researcher - Materials Interconnect Lab Research In Motion Limited Office: (519) 888-7465 79945 Mobile: (226) 220-4760 -----Original Message----- From: TechNet [mailto:[log in to unmask]] On Behalf Of Brian Ellis Sent: Tuesday, January 24, 2012 11:23 AM To: [log in to unmask] Subject: Re: [TN] The iPhone Economy (from NY Times)--BACKGROUND FACTS & HISTORY FIRST I'm sorry, but I've worked in China on cleaning/drying problems and OD solvent replacement. I can assure you that most of the numerous shops there use exactly the same types of equipment and techniques as are used in developed countries, sometimes even better. Brian On 24/01/2012 17:10, Robert Kondner wrote: > When it comes to selecting someone to help analyze a company's processes I will take the "Fresh Out of School" MBA over an experienced electronic technician any day. > > When I asked about rinsing in tap water followed with a water blow off so many folks said "Must Use DI" without even considering an analysis. A fresh out of school MBA might think about it longer. Hmmm I think I will pay them more money. > > What would they do in China? Put in a DI system of blow off tap water with an air gun? Hmmm, sounds like China knows the value of a dollar! > > Bob K. > > > -----Original Message----- > From: TechNet [mailto:[log in to unmask]] On Behalf Of Pete > Sent: Tuesday, January 24, 2012 9:18 AM > To: [log in to unmask] > Subject: Re: [TN] The iPhone Economy (from NY Times)--BACKGROUND > FACTS& HISTORY FIRST > > There seems to be two types of MBAs. Those that start with an undergrad degree and get their MBA as they, and those that get their MBAs before entering the real world. The problem came in the 80's, when every company wanted to hire those freshly minted MBAs right out of school. About the same time that share price became the only barometer. So began a cycle of formulatic answers because the textbook said so. Profits temporarily down? Reduce the workforce. Wnat more profits? Send it to China. The MBAs with real experience knew better, wouldn't go for the instant gratification ideas, so they aren't the ones who got promoted to positions to make significant business decisions. Part of the reason American companies seem to be stuck in a ditch is because we're now starting to see the long term effects of short term efforts to prop up that share price. > > I could show rather convincingly how moving some R&D workforce to China because they bill 1/3 is costing us twice as much, and losing us market share. But I don't have the right letters after my name, I don't get to go to those meetings. > > Pete > > --------------------------------------------------- > Technet Mail List provided as a service by IPC using LISTSERV 16.0 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 For > additional information, or contact Keach Sasamori at [log in to unmask] or > 847-615-7100 ext.2815 > ----------------------------------------------------- > > > ______________________________________________________________________ > This email has been scanned by the Symantec Email Security.cloud service. > For more information please contact helpdesk at x2960 or > [log in to unmask] > ______________________________________________________________________ > > --------------------------------------------------- > Technet Mail List provided as a service by IPC using LISTSERV 16.0 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 For > additional information, or contact Keach Sasamori at [log in to unmask] or > 847-615-7100 ext.2815 > ----------------------------------------------------- > ______________________________________________________________________ This email has been scanned by the Symantec Email Security.cloud service. For more information please contact helpdesk at x2960 or [log in to unmask] ______________________________________________________________________ --------------------------------------------------- Technet Mail List provided as a service by IPC using LISTSERV 16.0 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 For additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815 ----------------------------------------------------- --------------------------------------------------------------------- This transmission (including any attachments) may contain confidential information, privileged material (including material protected by the solicitor-client or other applicable privileges), or constitute non-public information. Any use of this information by anyone other than the intended recipient is prohibited. If you have received this transmission in error, please immediately reply to the sender and delete this information from your system. Use, dissemination, distribution, or reproduction of this transmission by unintended recipients is not authorized and may be unlawful. ______________________________________________________________________ This email has been scanned by the Symantec Email Security.cloud service. For more information please contact helpdesk at x2960 or [log in to unmask] ______________________________________________________________________ --------------------------------------------------- Technet Mail List provided as a service by IPC using LISTSERV 16.0 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 For additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815 ----------------------------------------------------- ______________________________________________________________________ This email has been scanned by the Symantec Email Security.cloud service. For more information please contact helpdesk at x2960 or [log in to unmask] ______________________________________________________________________ --------------------------------------------------- Technet Mail List provided as a service by IPC using LISTSERV 16.0 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 For additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815 ----------------------------------------------------- ______________________________________________________________________ This email has been scanned by the Symantec Email Security.cloud service. For more information please contact helpdesk at x2960 or [log in to unmask] ______________________________________________________________________ --------------------------------------------------- Technet Mail List provided as a service by IPC using LISTSERV 16.0 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 For additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815 ----------------------------------------------------- ______________________________________________________________________ This email has been scanned by the Symantec Email Security.cloud service. For more information please contact helpdesk at x2960 or [log in to unmask] ______________________________________________________________________ --------------------------------------------------- Technet Mail List provided as a service by IPC using LISTSERV 16.0 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 For additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815 -----------------------------------------------------