Please follow me to know the Inspection procedures for metal dome array.

1). Appearance of PET, it should be clean(no dirt, no Scratching);
2). Metal dome missed or double metal domes?  Can not stick together.
3) No Bubble in Assembly
4). The location of each dome is the same as the drawing of the PCB?
5). If there is EMI printing, pleas take care of the quality of the tracing;
6). Others, such as data of location holes, outline, etc.

Four-leg metal dome

triangle peel place dome

If you are interested in metal dome & metal dome array, you can visit to products’s page for C (Circle) , F (4-Legs) , T (Triangle) , O (Oblong) ,  Custom

If you would like to know  the packing method of metal dome & metal dome array, please visit to Metal Dome Packing for  In Bulk, In Tube, Tape & Reel, Peel & Place (Array).

Some customers ask us whether metal dome can bear high temperature? Whether it will have deformations or its force will be changed?

The material of metal dome is stainless steel, in general, the operating temperature of metal dome is -40-100 degrees, so if the operating temperature close to or over 100 degrees, there are definitely having changes for metal domes, including force and resistance. some customers place metal domes on PCB and FPC, then through SMT soldering, as we know the temperature of SMT process is very high, so the performances must be definitely affected and changed, although we do not do this test. So normally we suggest customers to place domes after SMT process.

Who has this issues, welcome to contact us, we can discuss together. Best Technology are engaged in providing a variety of solutions for customers.

Some customers may not know how to choose the plating of metal dome for their product.,now I am gonna tell the defference of them.
Usually,we have three kinds plating: Nickel plating, Silver plating, and gold plating.
The material of metal dome(snap dome) is made from stainless steel.

As the customers’ requirements, we have the three types plating for metal domes: Nickel, Silver, and gold plating. these three types are plating in the contact surface(we also have the double sided plating). Its main function 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.

If you want to know more information, please contact us