Questions tagged [gold]

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5
votes
4answers
164 views

Why not nickel-plated edge connectors?

The tracks used as an edge connector are gold coated to improve contact with the female connector: bare Cu oxidizes, and also wears out if they are inserted and removed repeatedly. Au cannot be ...
0
votes
2answers
80 views

How to use gold finishing to reduce corrosion on a moisture sensor?

Background I have a raspberry pi with a moisture sensor that suffers from corrosion. My setup is similar to the one described in this raspberrypi.stackexchange question about corrosion of a moisture ...
0
votes
1answer
85 views

How to make an electrical connection to thin gold plating?

Hello fellow engineers. I am trying to make an electrical connection with some gold plating. The gold plating is shaped like a rectangle, with dimensions of 3mm x 1.5mm x 0.1μm thick. Here is what ...
0
votes
2answers
81 views

long lasting wiring of many ds18b20 sensors

I'm laying down a number of temp sensors to the air exchange machine with heat pump. Temps there wary from -35 to +70 celsius. I may like to change/relayout components in the machine, therefore need ...
-2
votes
2answers
123 views

Noise performance of Gold plating on PCB? [closed]

It is very broad question to ask. In our company, we have been using PCB with pads coated in silver(HAL or tin coated). However, the project in development is suffering from noise issue, so I am ...
1
vote
1answer
255 views

Delamination or missing gold on PCB pads

Today I received some PCBs I ordered, and they look like they are missing the gold from the ENIG process in some areas. Am I correct? What is the cause, and should I be concerned? They seem to still ...
4
votes
1answer
313 views

Galvanic action on gold plated PCB

It has been always said that having gold plating on a PCB has lots of advantages. Not only does it give a good clean low resistance contact, but the perfect flat surface. However based on the galvanic ...
1
vote
1answer
493 views

How signifigant of an issue is Gold Embrittlement?

I have heard about gold embrittlement but have not seen any data regarding failure rates, or how long before solder joints are at risk of failing. We use an ENIG finish on all our boards and I'm ...
11
votes
4answers
2k views

Gold coated multimeter test probes

I found around a couple of damaged "gold coated" probes, after checking the inner wire it happens to be made of cooper, my questions here are simple 1) Why coat the tips if the rest of the probe is ...
6
votes
2answers
2k views

Gold coated pads

Is there any difference between a gold coated pad and a gold pad? I have been ordering boards from OSH park, they are really good quality, I'm just wondering what benefits this has over silver or bare ...
5
votes
2answers
6k views

How thick a gold finish on a pcb for wire bonding?

As a partial reparation for my previous question today. Please allow this rather esoteric/ but on topic question. I was sending out a pcb that will have gold wire bonding pads. It was a option at our ...