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Erfurt, Germany

X-fab Semiconductor Foundries Ag

USPTO Granted Patents = 91

EPO Patents = 10

Trademarks = 1

Forward Citations = 155

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114 inventors (with patents filed for the assignee):

Ralf Lerner (19 out of 29 patents)

Paul Ronald Stribley (9 out of 11 patents)

Daniel Gaebler (8 out of 8 patents)

4. Uwe Eckoldt (7 out of 7 patents)

5. Deb Kumar Pal (6 out of 7 patents)

6. Thomas Uhlig (5 out of 5 patents)

7. Kia Yaw Kee (5 out of 5 patents)

8. Roy Knechtel (4 out of 7 patents)

9. Gabriel Kittler (4 out of 4 patents)

10. John Nigel Ellis (4 out of 9 patents)

11. Tsui Ping Chu (4 out of 4 patents)

12. Wolfgang Einbrodt (4 out of 4 patents)

13. Konrad Bach (4 out of 4 patents)

14. Xuezhou Cao (3 out of 4 patents)

15. Sang Sool Koo (3 out of 3 patents)

Core Competencies:

High Electron Mobility Transistor

LDMOS Transistors

Micro-Transfer-Printable Devices

Organic Light Emitting Diode

Low Noise RF Applications

Electrostatic Discharge Protection

Vertical Hall Sensors

Bipolar Transistor

SOI Technology

MEMS Structures

Integrated Circuit Components

Silicon Semiconductor Wafers

91 patents: Sort by Forward Citations

1. 10446675 - Noff III-nitride high electron mobility transistor (2019-10-15),

2. 10388785 - LDMOS transistors for CMOS technologies and an associated production method (2019-08-20),

3. 10297502 - Isolation structure for micro-transfer-printable devices (2019-05-21),

4. 10181429 - Method for the formation of transistors PDSO1 and FDSO1 on a same substrate (2019-01-15),

5. 10151794 - Sleek serial interface for a wrapper boundary register (device and method) (2018-12-11),

6. 10074681 - Light shield for light sensitive elements (2018-09-11),

7. 10068935 - Image lag free pixel (2018-09-04),

8. 10031003 - Relative and absolute pressure sensor combined on chip (2018-07-24),

9. 10026734 - MOS device assembly (2018-07-17),

10. 10014314 - Semiconductor device and methods of manufacture thereof (2018-07-03),

11. 9985237 - Method of manufacturing an organic light emitting diode by lift-off (2018-05-29),

12. 9947662 - CMOS circuits suitable for low noise RF applications (2018-04-17),

13. 9875900 - Method of fabricating a tunnel oxide layer and a tunnel oxide layer for a semiconductor device (2018-01-23),

14. 9793338 - Capacitor structures for semiconductor device (2017-10-17),

15. 9748383 - Transistor (2017-08-29),

X-FAB is the leading analog/mixed-signal semiconductor foundry. With its six manufacturing sites in Asia, Europe, and the Americas, X-FAB is able to provide a global manufacturing footprint with a wide range of technologies and production capacity. The company's dedicated engineering teams create custom solutions according to customers' specifications and market requirements, offering a high degree of flexibility.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Dec 23 2025

91 Patents

#1 in Erfurt

#670 in Germany

#8,175 in the World

Erfurt, Germany

X-fab Semiconductor Foundries Ag

Forward Citations = 155

114 inventors:

Ralf Lerner (19 out of 29 patents)

Paul Ronald Stribley (9 out of 11 patents)

Daniel Gaebler (8 out of 8 patents)

4. Uwe Eckoldt (7 out of 7 patents)

5. Deb Kumar Pal (6 out of 7 patents)

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