Problems with soldering GND pads and vias of a multi-layer PCB

Hello Everyone;
I have designed a multi-layer PCB and I have used GND polygons. In soldering GND pads and vias I have problems, it is difficult. Please inform me about any solution.

help about PCB [hlp]

hi, friend

I had encountered this problem and succeeded solving it.

there is two solutions for u share:

please decrease the number of thermal tie which connect the pad with gnd polygon,

or you can isolate these pads from gnd polygon on out layers or inner layers.

Last there is unrecommend way: reduce the width of the thermal tie, this way need
gather data to analyze, i think it is more difficult than u hand soldering

I had done it as my DFSS GB project six months before to reduce rework time

Re: help about PCB [hlp]

Hello Kevin;
Can you explain about your project and your techniques more? What was the operating frequency of your PCB? If I reduce the width of thermal ties, what problems would probably happen?

help about PCB [hlp]

As you know, keep the enough temperature of the pad for you hand soldering is important and in effect.
The heat will transmit from the GND pad to the connected GND copper while you doing the componet pin solder on board use solder iron, could we slow the speed of the heat transmition? yes, that's why we design the mode of connect the GND pad to GND copper in thermal tie. in you case, because you use mutil-layer stack, and each layer must have had thermal tie to connect the pad with copper, so the speed of heat transmition is more fast than ordinary board use 2 layer stack. decrease the number of thermal tie or isolate these pad from gnd copper connect is very easy to do.

last way that I made mention of previous post would result you to take more time to measure the pad temperature change. I did it use the thermocouple, then I had got the best width of thermal tie for hand soldering on my board, but it took mine three months time. I don't think that you will do it in this way.

So far more about my project all on above