Posts Tagged ‘The function’

The function of dimple in metal domes

Saturday, July 31st, 2010

As you know, metal domes have dimple and without dimples two kinds, many customers don’t know why there is an dimple in the metal domes. OK, Let me explain the more details about the dimple domes features today:

First, It can increase the travel;
Secondly, it’s with better click feeling than without one;
Third, It has the better dust-prood effect;
Last, whether it’s with better conduction, there is no data to verify.

I think you are clear about the function of dimple in metal domes. In fact, which kind you will use, it’s depending on your design.

If you need more information, please feel free to contact us.

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The function of EMI on metal dome array

Tuesday, July 27th, 2010

As you know for EMI dome array, there is an EMI layer on the top of metal dome array. So what’s the function of EMI? OK, follow me:

EMI dome array is that there is a sliver paste is printed on the top layer as ESD (electrostatic Discharge Control). It can help to reduce the electrostatic which maybe hamful to the other parts inside of the mobile phone, and to protect the product.There are also two “contact eyes”(we named) to let me electrostatic run way. The contact resistance can reduce to less than three ohm.

This item are mostly used in our china marketing, and used in the cellphone products. Do you need the dome array made into EMI? Please contact us for your required.

Related Posts:
1. The theory of metal dome work;
2. The structure of dome array;
3. Metal dome with 3M adhesive sheet.

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