Electronics Forum | Tue Dec 29 15:55:26 EST 1998 | James Lalicker
We use a inline water wash system to clean our PWA's. How low should i be able to let my DI water resistivity get before replacing the DI tanks. Is there a standard i can get on this subject. Thanks JL
Electronics Forum | Tue Dec 29 23:37:09 EST 1998 | Mike Konrad
James, Most rental DI systems are as follows: Option #1: 2 mixed bed resin tanks: In this case, a 1 M-Ohm light should be installed on the output of tank #1, before tank #2. When the 1 M-Ohm light indicates that the output of the #1 tank is below
Electronics Forum | Fri Jan 01 11:39:14 EST 1999 | Christopher Lampron
| We use a inline water wash system to clean our PWA's. How | low should i be able to let my DI water resistivity get before replacing the DI tanks. Is there a standard i can get on this subject. | | Thanks | JL | JL, I too have been looking for a
Electronics Forum | Wed Dec 30 10:27:04 EST 1998 | Scott McKee
| We use a inline water wash system to clean our PWA's. How | low should i be able to let my DI water resistivity get before replacing the DI tanks. Is there a standard i can get on this subject. | | Thanks | JL | You'll want to look at IPC-AC-62A
Electronics Forum | Tue Dec 26 10:54:37 EST 2006 | yusufgomec
We use hot air leveling (HAL) process in pcb production. HAL process is 3 steps. �n 1. step flux. 2. step is HAL. And 3. step is rinsing. As you know there is mustn't any flux after rinsing operation. Our flux chemical is water soluable. But there ar
Electronics Forum | Tue Aug 20 21:46:09 EDT 2002 | davef
Rinse => OSP Coat => Rinse => Dry Hot Air Solder Level: Preclean => Rinse => Flux Coat => Solder Coat => Hot Air Level => Cool => Soft Brush => Post Clean Rinse => Dry Look here http://www.epa.gov/opptintr/dfe/pubs/pwb/ctsasurf/download/pdf/ch2.pdf
Electronics Forum | Mon Apr 15 05:04:02 EDT 2002 | ianchan
On a more layman's terms (am not a expert), here goes : 1) resistivity of DI rinse must be greater than 10M-ohms (some say greater than 16M-ohm?), dunno what is the FIX industrial standard? 2) DI water rinse usually is the end zone rinse, before th
Electronics Forum | Wed Dec 27 20:33:50 EST 2006 | greg york
water alone especially cold is not good enough, how do you check for hasl fluids when most residues left behind after improper cleaning are non ionic. Use 40C saponifier followed by heated rinse then cold rinse then DI rinse followed by dry.Nylon bru
Electronics Forum | Thu Aug 25 12:34:48 EDT 2011 | rnkamal
Ryan, Another option to look at would be ultrasonic cleaning if your boards/process would allow it. Automated multi-tank models with wash, rinse and dry capability are available for larger throughput. Typically both wash and rinse tanks have ultra
Electronics Forum | Wed Nov 09 10:08:42 EST 2011 | julien
Hello all, We have an old batch cleaning machine in our production and we use isopropanol alcohol during the rinsing process probably to lower the surface tension. Right now we are looking for a new machine who can do a better job compare to the ol
