Electronics Forum: thermal pad (Page 4 of 49)

Re: Thermal Interface Materials

Electronics Forum | Thu Mar 11 11:58:18 EST 1999 | P.L. Sorenson - Technical Consultant

Looking for advice/products on ways to get heat out of a package and into an internal thermal plane. Will have electrically isolated thermal pads (going to an internal thermal plane) under the part. Need a way to get good thermal contact betwe

Thermal Relief Pad causes bad solder

Electronics Forum | Thu Aug 18 00:19:09 EDT 2016 | souldierann

Hi there. would it be possible that thermal relief pads for relay bring bad solder?

LLP Device

Electronics Forum | Thu Mar 09 04:04:48 EST 2006 | dougs

one point to remember is to have a large stencil reduction on the thermal pad, you need to reduce the solder volume by about 35%, if you don't you risk the solder from the thermal pad shorting out the other leads or the solder volume causing the comp

Best way to ensure max solder load on SOIC w Thermal Pad

Electronics Forum | Sun Nov 14 20:33:39 EST 2010 | isd_jwendell

Hopefully you have a dispenser on your machine so that you can add a few large dots of paste to the thermal pad.

Thermal Pads Soldering Worry, can anybody help?

Electronics Forum | Fri Jul 21 21:41:12 EDT 2017 | heros_electronics

Thanks for your reply. X-ray inspection can only tell you whether the soldering is well, but can not solve the root problem of thermal pads.

IC Solder Voiding

Electronics Forum | Wed Dec 11 07:58:38 EST 2019 | clockwatcher

Although this is not technically a bottom termination component, the method of attachment of the thermal pad is a bottom termination attachment. For bottom termination components IPC states that "thermal pad void criteria shall be established between

QFN Side fillet

Electronics Forum | Thu Aug 01 05:25:26 EDT 2019 | ameenullakhan

Hi , hope below information may help you. The presence of small voids in thermal pad region is not likely to result in degradation of thermal and electrical performance The combing of smaller multiple voids up to 50% of the thermal pad area, does

SMD Via hole design-thermal performance

Electronics Forum | Sat Nov 01 09:40:05 EDT 2014 | davef

Papers: GOOGLE thermal pad via

28 pin QFN Pads.

Electronics Forum | Wed Sep 15 10:59:12 EDT 2010 | asksmt

Thanks for the valueable feedback, I have two questions 1. why do you have to extend the pad size ? is it okay if i keep pad size 2. I am currently using thermal pad size recommended in datasheet max value 4.2mm x 4.2mm, how much should i shrink

Importance of Exposed Pad In ST QFP for Set top box product

Electronics Forum | Thu Oct 01 08:34:50 EDT 2009 | davef

First, the reflow thermal recipe provided by your paste supplier is only a ball park guess. Beyond that, the temperature measured by thermocouples on your oven heaters are only loosely related the temperature of solder paste on your board. You need t


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