(1) New electronic components or improvements of electronic components may involve component materials and structures;
(2) New functional modules or improvement of functional modules, including circuit design and module physical structure design;
(3) The most common way to improve new equipment or devices is to add or subtract modules or change the connection relationship of modules to realize new functions or improve performance;
(4) New system or system improvement, including system architecture design, increase or decrease of equipment in the system, change of equipment connection relationship, etc.
(5) For the main equipment or supporting equipment or supporting system of the main system, for some special purposes, such as heat dissipation and dust removal;
(6) New control methods or improvement of control methods for specific electronic equipment or systems;
(7) New production technology or improvement of production technology of electronic products, including new manufacturing equipment or improvement of manufacturing equipment;
(8) New or improved testing equipment and methods for electronic products.
It should be noted that the invention and creation in the circuit can be a specific device, or a local circuit or a combination of several local circuits in the device. But it must be a product, not an idea.