Active solid-state devices (e.g. – transistors – solid-state diode – Field effect device – Charge transfer device
Reexamination Certificate
2011-01-11
2011-01-11
Smith, Zandra (Department: 2822)
Active solid-state devices (e.g., transistors, solid-state diode
Field effect device
Charge transfer device
C257S379000, C257S350000, C257SE21549, C438S424000, C438S438000
Reexamination Certificate
active
07868361
ABSTRACT:
A semiconductor device having a core device with a high-k gate dielectric and an I/O device with a silicon dioxide or other non-high-k gate dielectric, and a method of fabricating such a device. A core well and an I/O well are created in a semiconductor substrate and separated by an isolation structure. An I/O device is formed over the I/O well and has a silicon dioxide or a low-k gate dielectric. A resistor may be formed on an isolation structure adjacent to the core well. A core-well device such as a transistor is formed over the core well, and has a high-k gate dielectric. In some embodiments, a p-type I/O well and an n-type I/O well are created. In a preferred embodiment, the I/O device or devices are formed prior to forming the core device and protected with a sacrificial layer until the core device is fabricated.
REFERENCES:
patent: 7572712 (2009-08-01), Chong et al.
patent: 2004/0245577 (2004-12-01), Bhattacharyya
patent: 2005/0116360 (2005-06-01), Huang et al.
patent: 2005/0260807 (2005-11-01), Orlowski et al.
patent: 2006/0148153 (2006-07-01), Kwon et al.
patent: 2006/0258123 (2006-11-01), Forbes
patent: 2007/0145487 (2007-06-01), Kavalieros et al.
patent: 2008/0124878 (2008-05-01), Cook et al.
Cheng Chung Long
Chuang Harry
Chung Sheng-Chen
Liang Mong Song
Thei Kong-Beng
Green Telly D
Slater & Matsil L.L.P.
Smith Zandra
Taiwan Semiconductor Manufacturing Company , Ltd.
LandOfFree
Semiconductor device with both I/O and core components and... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Semiconductor device with both I/O and core components and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Semiconductor device with both I/O and core components and... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2702561