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

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.

The advantages of metal dome with dimple

May 26th, 2009

Do you know why there is a dimple in the center of metal dome? If not, ok, please follow to know the advantages of metal dome with dimple. First, it can increase the travel, higher travel; second, it can increase the contact areas to ensure the conductive stability; Third, it will be with better click feeling; Last, It will be dust resistance. For four-leg metal domes, we now have the most popular items with dimple are: 6mm diameter, 150g; 8.4mm diameter, 200g; 12.2mm dia,220g,350g and so on.

If you need any further information, please do feel free contact us or see the below relative subjects:
1.The difference between dimple and without dimple of domes;
2.How to test the life of metal dome;
3.FAQs.

How to handle smudge of metal dome(snap dome)?

April 7th, 2009

How can we handle the smudge of metal dome(snap dome)? the apperance of metal dome is also affect the purchasing of customers,
and maybe affect the metal dome conductive, so we must keep the apperance is vey clear, no smudge, dust, burr, crushes, stamping.
we use the ultrasonic cleanout to clean, and then tumbledry, to test the life of metal dome, apperance inspection, metal dome force test,
and check the burr, and put them in package. You can see we are very strict with the quality of our metal domes.

If you need more information, please don’t hesitate to contact us, we are glad to be at your service.

The structure of dome array

March 25th, 2009

Normally, we are now using the most popular double layers structure for the dome array. You can see the picture for this structure as below:

The structure of metal dome array

There is a Mylar with adhesive on the top, and then a Spacer with adhesive take the metal dome. For this structure, there are ventilation holes between
metal domes, when you press the domes, the air can ran out from the ventilation holes, so the clike feeling will be very better.
EMI item is that a EMI with adhesive on the Mylar, Double adhesive is that there is two sided adhesive with Mylar, LGF item is that there Ligh guide
film on the top.

Ok, if you need any further information, please contact us or see our blog.