Category:PCB Solder Paste
Solder paste is a material used in the manufacture of printed circuit boards to connect surface mount components to pads on the board. It is also possible to solder through hole pin in paste components by print solder paste in/over the holes.
We are attempting to increase utilization of our Pick and Place equipment (MY9) by transfering more components into the SMT area. Large gains could be had if we can successfully place a metal socket w...(view more)
As a QA guy, I cannot find a portable equipment to check lead free solder in the container during processing.(view more)
After hand soldering I am getting solder flags on my boards (see attachments). Any one have an idea on how to get rid of these flags or are those acceptable?(view more)
We are having some difficulty soldering a 240 pin Altera device. We use Alpha WS-609, a very generic profile for that solder paste, and a 6 mil stencil with laser cut apertures (1:1 ratio). This is a ...(view more)
Currently I am in the buisness of soldering bare die to the top surface of a copper heat sink. Is any one else have some exprience in this process that can help. We heat a copper slug through a contol...(view more)
I am having trouble determining what the IPC classification is for the attachment. Also... if a burn, is it a defect and for what classes?(view more)
Hope some of you out there can help me with this one. I am getting feedback from our test department that they are showing opens on solder joints which have visually good wetting. The touch-up operato...(view more)
I am a student doing a project on rework os BGAS and CSPS and Im looking for information on it especially rework of csps Has anyone got x-ray images of csps after rework or of BGAS to show csps with s...(view more)
I need to know if there are any special component pad designs that need to be considered when evaluating paste-in-hole? We have a few through hole connectors that are good candidates to place pre refl...(view more)
I discovered that we have some gold plated (30 mico in.) through hole connectors which were Paste In Hole soldered (60 sec at reflow) on a HASL PCB. Do we have an embrittlement reliability issue? The ...(view more)