How can I minimize the number of touch sensor design cycles?

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What does the design process look like when creating a new touch sensor product?


In the following graph, you can see a simple representation of the design process and cycles when creating a new touch sensor product.

The first steps are to specify the system’s specs and requirements and select the device. These choices depend on the desired functionality.

Then, there is a feasibility study, to see if a sensor with the required specs is, indeed, feasible. Once all that is out of the way, the actual design begins.


The design is split in 2 parts: the mechanical design of the sensor, and the controller programming and tuning The designer chooses a sensor pattern (e.g. Double Diamond),  stack-up materials and a controller. Then follows the controller-sensor system testing (with prototyping or simulation), to make sure they are working well together. If they are not compatible, the designer might have to go back to the previous stage and change the sensor pattern or its parameters, or tweak the configuration of the controller.

Once the touch sensor design is satisfactory and works well with the controller, physical prototypes of the whole system are constructed and the controller- sensor is integrated with the rest of the system. Then, comes the testing and validation stage. If the system performance is satisfactory, it is moves along to production.


How can I minimize the number of design cycles? 

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