Archive for the ‘Metal Dome’ Category

The difference of three kinds plating of metal dome

Tuesday, October 13th, 2009

Recently, some customers have some queries about the plating of metal dome(snap dome) and the difference of them. We now have three kinds plating: Nickel plating, Silver plating, and gold plating. And I explain the difference in details as below: The material of metal dome(snap dome) is made from stainless steel 301 from Japan and USA.

 As the customers’ requirements, we have the three types plating for metal domes: Nickel, Silver, and gold plating. hese three types are plating in the contact surface(we also have the double sided plating). Its main fuction is to reduce the contact resistance, and increase the conduction. The contact resistance: Gold plating<Silver plating <Nickel plating. Although the plating can reduce the contact resistance, it also can increase the cost. Especially the cost of gold plating will increase several times.

Generally speaking, the resistance of our stainless steel is less than 10 ohm, the Nickel plating is less than 1 ohm. If you haven’t the special requirements for the resistance, we recommend you to use the stainless steel metal dome. Last, what the kind of product you would like to use is based on your product’s required. So it depends on your requirements.

OK, if you want to know more information, please contact us or see our FAQs.

Many different names of metal dome

Monday, August 3rd, 2009

In our industry, we often received the inquries from customers to call many different names of metal dome. It’s very interesting phenomenon, I think.

Bur for most, we call it metal dome. Dome means rounded roof with a circularbase, it comes from 16th century, and from the Latin domus.It looks like a upside-down round roof, so it named metal dome. It also have so many other names. such as: snap dome, tactile dome, metal snap dome, tactile metal dome, dome switches, and so on.

The stoke of metal dome

Monday, July 20th, 2009

we have got some customers to ask the stoke of metal dome, because of they have the required about the whole spacer for the domes.So what’s the stoke of the metal domes? You can see the below picture:

From it, you can see the total height is 0.052mm  , and the thickness is 0.10mm for this item, then what will be the stoke?
There is a formula for stoke: S(stoke)=H(height)-T(thickness)=0.042mm
But if there is a dimple in the center, what will be stoke? I think it’s easy for you now, right?
S(stoke)=H(height)-T(thickness)-DT(dimple height)
I think you are clear about stoke of metal dome now, if you need more information, please contact us or see our FAQs.

What kind of metal dome is suitable to be made into dome array?

Thursday, June 18th, 2009

Metal dome array is a kind of pressure-sensitive adhesive film that carries metal dome. But what kind of metal dome is suitable to be made into dome array?

Circle metal domes are the most commonly used in dome arrays, such as keypads of our cell phones, it’s the round metal dome. The four legs metal dome commonly used in membrane switches, it’s with large quantity. Triangle series are  most used with the legs, so they aren’t made into dome array. Of course, we also have customers to make into our standard one key metal dome array for switches. Now, from digital, high-tech products extended to all lines, dome array mostly used.

If you want to know more information, please contact us anytime or see our FAQs.