Channel orientation to enhance transistor performance

Semiconductor device manufacturing: process – Making field effect device having pair of active regions... – Having insulated gate

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C438S199000, C438S275000, C257S369000, C257SE21409, C257SE29255

Reexamination Certificate

active

10969108

ABSTRACT:
P channel transistors are formed in a semiconductor layer that has a (110) surface orientation for enhancing P channel transistor performance, and the N channel transistors are formed in a semiconductor layer that has a (100) surface orientation. To further provide P channel transistor performance enhancement, the direction of their channel lengths is selected based on their channel direction. The narrow width P channel transistors are preferably oriented in the <100> direction. The wide channel width P channel transistors are preferably oriented in the <110> direction.

REFERENCES:
patent: 5729045 (1998-03-01), Buynoski
patent: 6921948 (2005-07-01), Watt
patent: 2004/0150013 (2004-08-01), Ipposhi
patent: 2004/0161886 (2004-08-01), Forbes et al.
patent: WO 02/045156 (2002-06-01), None
Yang et al., “High Performance CMOS Fabricated on Hybrid Substrate With Different Crystal Orientations,” IEEE, 2003, 4 pgs.
Matsumoto et al., “Novel SOI Wafer Engineering Using Low Stress and High Mobility CMOSFET with <100>-Channel for Embedded RF/Analog Applications,” IEEE, 2002, pp. 663-666.
Aoki et al., “Optimum Crystallographic Orientation of Submicrometer CMOS Devices Operated at Low Temperatures,” IEEE Transactions on Electron Devices, vol. RD-34K. No. 1, Jan. 1987, pp. 52-57.
Bufler et al., “Scaling and Strain Dependence of Nanoscale Strained-Si p-MOSFET Performance,” IEEE Transactions on Electron Devices, vol. 50, No. 12, Dec. 2003, pp. 2461-2466.
Shima et al., “<100> Channel Strained-SIGe p-MOSFET with Enhanced Hole Mobility and Lower Parasitic Resistance,” IEEE 2002 Symposium on VLSI Technology Digest of Technical Papes, pp. 94-95.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Channel orientation to enhance transistor performance does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Channel orientation to enhance transistor performance, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Channel orientation to enhance transistor performance will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3721481

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.