Patents by Inventor Chuan Chien Tan

Chuan Chien Tan has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Bipolar transistor
    Patent number: 9293569
    Abstract: A bipolar junction transistor is provided with an emitter region, an oxide region, a base region and a collector region. The base region is located between the emitter region and the oxide region and has a junction with the emitter region and an interface with the oxide region. An at least partially conductive element such as metal or silicon is positioned to overlap with at least part of the junction between the base region and the emitter region, thereby forming a gate. The gate also overlaps with at least part of the interface between the base region and the oxide region. When a suitable bias voltage is applied to the gate, the gain of the transistor can be increased.
    Type: Grant
    Filed: October 15, 2013
    Date of Patent: March 22, 2016
    Assignee: X-FAB SEMICONDUCTOR FOUNDRIES AG
    Inventors: Brendan Toner, Xuezhou Cao, Fred Fang, Chuan Chien Tan
  • Bipolar transistor
    Publication number: 20140042592
    Abstract: A bipolar junction transistor is provided with an emitter region, an oxide region, a base region and a collector region. The base region is located between the emitter region and the oxide region and has a junction with the emitter region and an interface with the oxide region. An at least partially conductive element such as metal or silicon is positioned to overlap with at least part of the junction between the base region and the emitter region, thereby forming a gate. The gate also overlaps with at least part of the interface between the base region and the oxide region. When a suitable bias voltage is applied to the gate, the gain of the transistor can be increased.
    Type: Application
    Filed: October 15, 2013
    Publication date: February 13, 2014
    Applicant: X-FAB Semiconductor Foundries AG
    Inventors: Brendan Toner, Xuezhou Cao, Fred Fang, Chuan Chien Tan