Killed the cat too , Ed Most components , as you said, would not live with another 20'C . Especially with LED's its a battle to keep them alive . Would be high price and risk to pay for cheap flux and solder ; we still foam the no clean (spray proved too messy) Did you like that Electrovert new gas delivery (is it alpha wave ?) ? Paul > ---------- > From: Ed Holton[SMTP:[log in to unmask]] > Sent: Tuesday, 18 August 1998 5:36 > To: [log in to unmask] > Subject: Re: [TN] Hydrogen/Nitrogen saftey issues > > Dennis (and others) if I may ask, why do you want to put this mix in > your > reflow oven. What assembly process/technolgy is this used for? I > asked a > question on technet several months ago about using nitrogen/hydrogen > in the > reflow process, because I was told that the hydrogen, at temperatures > above > 300C (or 350C from another source) will actually clean the surface of > an > area to be soldered, thus eliminating flux. Obviously at this > temperature, > you would need a high temp solder, and components that can withstand > the > high temperatures. Curious minds want to know, who is using this, and > why? > It is my understanding that Electrovert has investigated this, but my > contact person did not say much. I think they are still > investigating. > > CURIOUS MINDS WANT TO KNOW!!!!!!!!!!!!! > > > > > [log in to unmask] on 08/17/98 02:39:36 PM > > Please respond to [log in to unmask]; Please respond to > [log in to unmask] > > To: [log in to unmask] > cc: (bcc: Ed Holton/Hella North America Inc.) > Subject: [TN] Hydrogen/Nitrogen saftey issues > > > > > From: Dennis J Fall@TFT on 08/17/98 01:39 PM > > > To: [log in to unmask] > cc: > Subject: Hydrogen/Nitrogen saftey issues > > I am looking for some information regarding the safety of reflow ovens > using a 15% Hydrogen 85% Nitrogen atmosphere. If anyone has had > experience > using this concentration or something close to it, please let me know. > Maybe we can discuss any safety issues that may pertain to the > process. > > Thank You, > > Dennis Fall P: 507-625-8445 x17 > > Process Engineer F: 507-625-3523 > > Thin Film Technology Corporation mailto:[log in to unmask] > > 1980 Commerce Drive http://www.thin-film.com > > North Mankato, MN 56003-1702 > > ################################################################ > TechNet E-Mail Forum provided as a free service by IPC using LISTSERV > 1.8c > ################################################################ > To subscribe/unsubscribe, send a message to [log in to unmask] with > following > text in the body: > To subscribe: SUBSCRIBE TechNet <your full name> > To unsubscribe: SIGNOFF TechNet > ################################################################ > Please visit IPC's web site (http://www.ipc.org) "On-Line Services" > section > for additional information. For technical support contact Hugo > Scaramuzza > at [log in to unmask] or 847-509-9700 ext.312 > ################################################################ > > ################################################################ > TechNet E-Mail Forum provided as a free service by IPC using LISTSERV > 1.8c > ################################################################ > To subscribe/unsubscribe, send a message to [log in to unmask] with > following text in the body: > To subscribe: SUBSCRIBE TechNet <your full name> > To unsubscribe: SIGNOFF TechNet > ################################################################ > Please visit IPC's web site (http://www.ipc.org) "On-Line Services" > section for additional information. > For technical support contact Hugo Scaramuzza at [log in to unmask] or > 847-509-9700 ext.312 > ################################################################ > ################################################################ TechNet E-Mail Forum provided as a free service by IPC using LISTSERV 1.8c ################################################################ To subscribe/unsubscribe, send a message to [log in to unmask] with following text in the body: To subscribe: SUBSCRIBE TechNet <your full name> To unsubscribe: SIGNOFF TechNet ################################################################ Please visit IPC's web site (http://www.ipc.org) "On-Line Services" section for additional information. For technical support contact Hugo Scaramuzza at [log in to unmask] or 847-509-9700 ext.312 ################################################################ ################################################################ TechNet E-Mail Forum provided as a free service by IPC using LISTSERV 1.8c ################################################################ To subscribe/unsubscribe, send a message to [log in to unmask] with following text in the body: To subscribe: SUBSCRIBE TechNet <your full name> To unsubscribe: SIGNOFF TechNet ################################################################ Please visit IPC's web site (http://www.ipc.org) "On-Line Services" section for additional information. For technical support contact Hugo Scaramuzza at [log in to unmask] or 847-509-9700 ext.312 ################################################################