thermal pad

"thermal pad" search results in the Electronics Forums



484 results found for "thermal pad" in the Electronics Forums

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Aluminum Capacitor disassociated from sodler joint

Feb 19, 2019 | Thanks Rob, actually the thermal relieve is very poor. We did attach the thermo couples on the pa

Yamaha pick and place

Apr 10, 2018 |

Tombstone components issue after reflow?

Aug 14, 2017 | There is no solution in above case, this is > caused by the PCB design. There are no > thermal

What is the QFN or Device Voiding Levels Needed for Automotive Industry for Power Devices for Electric Vehicles?

Mar 15, 2017 | It's well documented in higher power semiconductors where thermal interface materials are used, such

Interpretation for IPC 600H for Clause 3.3.2 (Lifted Land - Cross Sectioned)

Apr 28, 2014 | We found repeated pad lifted after different SMT Reflow temperature (eg: 243 deg C and 233 deg C) at

SMT voiding

Sep 25, 2012 | The more that I chew the idea of outgassing through the pad theory, the less I like it. Why would so

SMT voiding

Sep 25, 2012 |

63/37 Solder Paste mix

May 11, 2012 |

2512 Solder Crack

Aug 24, 2011 | Hello all, We just got some board back from thermal shock and we found that several of the 2512 r

Multiple Resistor Rework

Aug 30, 2010 |

Solder cover

Mar 3, 2010 |

SMT LEDS SOLDERING

Sep 9, 2008 | We consider "IR-reflow soldering profile" to be the supplier's recommended reflow thermal profile th

Anyone facing QFN package crack problem ?

Dec 2, 2007 | Hi, There are QFN 32,40,48 pins with middle pad. Body size are 7x7 and pitch 0.5mm. I means as com

Solder wick on Ag/Pd termination

Oct 23, 2007 | We're not really sure. Usually when solder leaves the pads and wicks-up a component lead, it means t

lead free pcb plating?

Jul 28, 2007 |

Thermocouple Design

Apr 5, 2007 |

LQA-56A

Mar 29, 2007 | Well I DO KNOW! Hi aj, 100% on the lead pads and 50% reduction on the center pad if you do not

BGA opens / cracks

Jan 24, 2007 |

Solderbridges wave soldering

Dec 4, 2006 | Keep in mind that device pitch, pad geometry, lead length and even alloy type will play a roll in yo

Dewetting on Second side reflow?????

Nov 1, 2006 | See if the solder is leaving the pad(s) and is wicking up the component. This is long shot but I

Reflow Oven Profiling

Apr 25, 2006 |

Gold Surface Finish on PCB's

Dec 14, 2005 | We experienced brittle solder joints that did not withstand thermal cycling as I was told. I am pos

LF BGA Tests

Oct 5, 2005 |

Tombstoning 0306's

Sep 9, 2005 | If the tombstoning is thermal (occuring during reflow) then try slightly reducing the stencil apertu

BGA SEM test

Jul 27, 2005 |

How to avoid tombstoning in 0201 components

Jul 5, 2005 | So your thermal cycling test is putting these solder joints into reflow (183C + if they are lead joi

QFN Packages

Feb 28, 2005 | We use QFNs in automotive products and have done a good bit of experimenting with pad designs, past

Touch or no touch-up

Feb 11, 2005 |

Led tester

best reflow oven