Electronics Forum | Sun Jul 18 21:11:03 EDT 2004 | Thomas
Hi all, Need some advice on wavesolder pinholes issues. The PCBs are stored in a warehouse for 6 months and not vacuum packed. Before wavesodlering, boards are baked 2 hrs at 110 deg. But every piece of it has pinholes at random locations. PCB i
Electronics Forum | Sun Jul 18 21:15:05 EDT 2004 | Thomas
Hi all, Need some advice on wavesolder pinholes issues. The PCBs are stored in a warehouse for 6 months and not vacuum packed. Before wavesodlering, boards are baked 2 hrs at 110 deg. But every piece of it has pinholes at random locations. PCB i
Electronics Forum | Fri Jan 19 06:49:34 EST 2001 | Adam
To you wavesoldering guru's. When wavesoldering with a selective wavesoldering carrier What causes the white vapor type residues around the areas of the carrier which are exposed to the wave ? My Initial reaction was to high of A Pressure for the spr
Electronics Forum | Tue Sep 15 08:53:48 EDT 1998 | Chrys
| I am trying to find out if it is possible to wavesolder TSOP's. If so , what should the footprint be like, and how should the wavesolder process be set up ? | Alternatively can PLCC's be wavesoldered ? | I would greatly appreciate any help. | Rega
Electronics Forum | Mon Oct 11 10:49:44 EDT 1999 | ed & tuna
We also had that issue and feel, as Mr wolfgang feels, That handling or packaging may be an issue. The adhesive bond may be partially fractured and releasing in the wavesolder.
Electronics Forum | Wed Jul 21 01:57:48 EDT 2004 | Thomas
Hi, It is in Celcius. Baking at 2hrs at 110�C , did not help. The problem is consistent and happens at random locations. Fresh flux and new foaming tank has not done the trick also. But I am looking into the contamination issue under scope.
Electronics Forum | Thu Nov 12 03:58:10 EST 1998 | Earl Moon
| What are the factors that go into determining PCB Board temperature requirements for the Wavesolder process? Most of the recipes I've seen call for preheating the PCB to around 230F - 250F. This temp is about 210F - 230F below the typical solder te
Electronics Forum | Tue Jul 20 16:55:21 EDT 2004 | vwhipple@sono-tek.com
Pin Holes can be caused by many things. Does the problem come and go?? If so, see if there is a correlation to lot numbers on the boards or vendor. This could indicate a supplier issue.. possibly with the mask. Look at your soldered assemblies und
Electronics Forum | Tue Apr 27 12:19:17 EDT 1999 | John
Has anybody had experience wavesoldering 1 watt 2512 resistor packages?? I know it can be done, but are there reliability issues? We are in the middle of a new product and the question was posed to me "Can we use 2512 1 watt resistors on the bottom
Electronics Forum | Fri Nov 13 14:39:04 EST 1998 | J.A.B.
Also the preheating of the board is done to help evaporate any water/alcohol that is in the flux - water is a big problem in No-clean processes. From our experience, a temp range around 200f - no more than 220f is ideal for the bigger boards, but tem
