Capacitive touch panel controller and method of manufacturing the same
US9081438B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 10, 2013 |
| Grant date | Jul 14, 2015 |
| Priority date | — |
| Expiry date | Jul 14, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10D48/01
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A capacitive touch panel controller has a memory and multiple driving signal output units. At least one transistor of each driving signal output unit and multiple transistors of the memory are fabricated by an identical semiconductor fabrication process so that the gate oxide layers of the transistors of the driving signal output unit and the memory are identical in thickness. As the transistor of each driving signal output unit and those of the memory are fabricated by a same high-voltage semiconductor fabrication process, the transistor of each driving signal output unit can be fabricated to provide a capacitive touch panel controller having high-voltage driving capability without using any high-voltage fabrication process and increasing the production cost. Due to the high-voltage driving, the SNR and anti-interference capability can be increased.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.