Method for forming solder balls on a semiconductor substrate

H - Electricity – 01 – L

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

H01L 23/492 (2006.01) H01L 21/48 (2006.01) H01L 23/488 (2006.01) H01L 23/498 (2006.01) H01L 23/50 (2006.01) H05K 3/34 (2006.01)

Patent

CA 2135508

A method for forming solder ball contacts on a ball grid array is described. The solder balls are formed by sqeegeeing a solder paste through apertures in a fixture into contact with pads on a substrate, heating the fixture, paste and substrate to reflow the solder paste into solder balls that attach to the pads and are detached from the fixture. After cooling, the fixture is readily separated from the substrate and leaves the solder balls in conductive contact with contact pads on the substrate.

La présente invention se rapporte à une méthode utilisée pour former des globules de contact à souder sur une grille. Les globules à souder sont formés par raclage d'une soudure en pâte dans des ouvertures pratiquées dans un montage fixe à coussinets en contact avec un substrat. Le montage fixe, la soudure en pâte et le substrat sont chauffés dans le but de réaliser la refusion de la pâte en globules, lesquels globules se fixent sur les coussinets et se détachent du montage fixe. Une fois refroidi, le montage fixe est séparé promptement du substrat, laissant ainsi les globules à souder en contact conducteur avec les coussinets situés sur le substrat.

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

Method for forming solder balls on a semiconductor substrate does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for forming solder balls on a semiconductor substrate, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for forming solder balls on a semiconductor substrate will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1574933

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.