solder and ball

"solder and ball" search results in the Electronics Forums

2092 results found for "solder and ball" in the Electronics Forums

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paste quality

Feb 10, 2014 | It is sort of a self answering question if you come in from the solder paste angle.

Using RoHS Components in a leaded paste world

Oct 31, 2013 | You should have no difficulty with QFN or QFP parts when using non-RoHS solder. The QFP's are most l

Cleaning paste-printed PCB

Sep 4, 2012 | The best thing you can do is to clean the board that has a solder paste defect on it. If you don't y

BGA re-reflow

Dec 24, 2011 |

BGA Parameter Damming

Sep 14, 2011 |

BGA Thermal Profiling

Aug 19, 2011 |

BGA Reflow

Jun 13, 2011 | Had you check the temperature difference of outer balls and inner balls? Solder short in corners mig

Pin hole

Mar 11, 2010 |

BGA opens

Nov 10, 2009 |

defects in pcb manufacturing

Nov 2, 2009 | Base on the top picture condition, seems like the boards condition is a lot with solder splash or so

What will happen if a sloder paste is used after 24hours

Jan 18, 2009 | We're not sure of the condition of your solder paste. So, afte 24 hours, if it's: * Unused, in a re

Dye and Pry

Mar 12, 2008 |

BGA Voids

Feb 12, 2008 |

Epoxy on bottom of SMT component

Nov 29, 2007 | Hi Dback, Yes, i'm open "dog bone" aperture for my chip component. this is to prevent solder ball i

BGA dropping off underside of board

Aug 13, 2007 | Would I be correct in assuming that the solder used to attach the BGA ball to the device body should

0402 aperture design lf

Apr 12, 2007 |

Wave flux and profiling

Dec 19, 2006 |

Streaking at Screen Printing

Dec 17, 2006 | Paul We've seen "cold welding" of solder paste when dispensed improperly. It occurs in the narro

Copper migration

Dec 7, 2006 | Hi Davef, The BGA pad is with ENIG finish, the PCB pad is with immersion silver and the solder pa

Pasting ahead

Nov 13, 2006 |

Functional Test Faulure due to BGA ICs

Jul 25, 2006 | Does your board passes also through the wave solder step ? If, yes, it could be a matter of secon

Stencil cleaners.

Jul 17, 2006 |

BGA rework using Tacky Flux

Jan 16, 2006 | Dunno. 4% higher standoff results in 16% higher reliability [�The Effects of Solder Joint Voiding o

Does this forum covers BGA's

Feb 21, 2005 | Thanks Grant and Dave. I have done extensive work on this and found some of the solder balls and

PBGA overprint

Oct 11, 2004 |

PBGA overprint

Sep 30, 2004 |

Crystalized Flux under BGA

Aug 3, 2004 | Hi, What contributes to the above? I've got some BGA solder joints with a crystal like flux attac

Un-Reflowed Paste

Jul 27, 2004 | Hello , I agree with the solder ball theory, we used to have an issue with high humidity and it pro

Via in pad

Jun 11, 2004 |

Indium NC-SMQ92J paste problems

Apr 23, 2004 | Sometimes solder balling is related to oxidized paste or paste that has sat on the pcb too long befo

Indium NC-SMQ92J paste problems

Apr 23, 2004 | We have switched over form Indium's nc-smq92 to nc-smq92j and are experiencing a ton of solder balls

Oxidation on BGA

Apr 20, 2004 | First, how oxidized are these solder balls? Will the take solder using your routine flux / paste?

No Lead BGA Hot Gas Rework

Apr 13, 2004 | Ken you say reaching 218 to 221 C will give a homogenus solder ball. The pb free solder balls on the

Voiding in board to BGA joints

Mar 9, 2004 | Hello everyone: 1.I use Kester R244 63/37 solder paste. 2.Stencil thickness 6 mil. 3.Springdale C


Jan 22, 2004 |

Screen washing

Aug 27, 2003 |

Porosity in Good Plating

Jul 4, 2003 |

Relfow ?

Jun 19, 2003 | Hi all I am having a reflow problem. Recently we started using a through hole connector with solder

Steaming boards

Apr 23, 2003 |

BGA Picture Evaluation

Apr 9, 2003 |


Mar 18, 2003 |

BGA PCB Pad size

Jan 17, 2003 |

No Clean for BGA's

Oct 9, 2002 | Kester 256 has also worked tremendously well for us. We have soldered thousands of BGAs from 156 bal

stencil design software

Jul 17, 2002 |

pcb components vacuum pick up

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