Archive for the ‘Dome Array’ Category

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Raw edges of metal dome array

Saturday, July 10th, 2010

Sometimes when we make the metal dome array which will cause the raw edges, so why is that and how can we slove that?

The reasons and solutions as below:
1. The mold for metal dome array outline not in balance—we should adjust the mold;
2. Blade for outline mold isn’t shape—handing the blade of mold;
3. Big gap between upper and lower molds—-adjust the specifications;
4. Thinner material—use the thicker material.

For the unqualified products, we can’t let them out of factory, we have a very strict quality control system to ensure the quality of our metal dome array. Please don’t worry about the quality of our products.

Ok, if you need any further information about snap dome and dome array, please do feel free to contact us.

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LGF metal dome array specifications

Wednesday, June 30th, 2010

Ok, this time let’s see more details of LGF metal dome array specifications.  LGF means Light Guide Film, is the difference of the normal metal dome array is that there is a LGF on the top layer.

The working theory is the use of the light reflection and refraction theory, and then let the surface of the keypad illuminated uniform and higher brightness.
1. you can save the several LED lights, and the SMT fee.

2. solve the uneven brightness, high electrical power consumption, and high costing.

3. structure is easy, don’t affect the design of product.

4. two thickness of LGF: 0.125mm and 0.10mm.

If you want to learn more about our LGF Metal Dome Array specifications, please contact CMD Manufacture Co., Ltd. for more information about dome array and snap dome.

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The assembling instruction of dome array

Thursday, June 17th, 2010

Some guys maybe contact the dome array first time, so they don’t know how to assemble the dome array on the circuit board. Now, please follow the below steps:

1). The dome array is supported by the protective paper, the paper will throw away when assembling.

2). Peel the transparent film with metal domes from the protective paper by forceps or other toolings.

3). Keep the adhesive side stick to the PCB, press a little time to make the metal dome array assemble firmly.

Please see the picture:
Dome Array Assembly Instruction

Now, I think you are clear about assembling instruction of dome array. If you need any further information, please contact us.

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Can metal dome be soldered to printed circuit board?

Monday, May 31st, 2010

Can metal dome be soldered to printed circuit board? We aren’t recommend. When metal dome are pushed, the feet actually move outward slightly. When soldered to circuit board, the feet of the domes are restricted from their natural movement. This restriction can negatively affect the tactile response of the domes, and in some cases, cause irreparable damage to metal dome or break the solder joint. so we aren’t recommend to solder the snap dome on printed circuit board.

Related posts:

1. IQC For Metal Domes;

2. IQC for metal dome array;

3. The specifications of metal dome;

4. The specifications of dome array.

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