Butted contact structure

Active solid-state devices (e.g. – transistors – solid-state diode – Combined with electrical contact or lead – Of specified material other than unalloyed aluminum

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C257S752000, C257S754000, C257SE29122, C257SE23145

Reexamination Certificate

active

07663237

ABSTRACT:
A semiconductor structure and a method of forming the same using replacement gate processes are provided. The semiconductor structure includes a butted contact coupling a source/drain region, or a silicide on the source/drain region, of a first transistor and a gate extension. The semiconductor structure further includes a contact pad over the source/drain region of the first transistor and electrically coupled to the source/drain region. The addition of the contact pad reduces the contact resistance and the possibility that an open circuit is formed between the butted contact and the source/drain region. The contact pad preferably has a top surface substantially leveled with a top surface of the gate extension.

REFERENCES:
patent: 5804846 (1998-09-01), Fuller
patent: 6239458 (2001-05-01), Liaw et al.
patent: 6724085 (2004-04-01), Tomita
patent: 2002/0048939 (2002-04-01), Lee
patent: 2005/0051854 (2005-03-01), Cabral et al.
patent: 2005/0275043 (2005-12-01), Huang et al.
patent: 550687 (2003-09-01), None
Chatterjee, A., et al., “CMOS Metal Replacement Gate Transistors Using Tantalum Pentoxide Gate Insulator,” IEDM, IEEE, 1998, pp. 777-780.
Yagishita, A., et al., “High Performance Damascene Metal Gate MOSFET's for 0.1 μm Regime,” IEEE Transactions on Electron Devices, vol. 47, No. 5, May 2000, pp. 1028-1034.
Pan, J., et al., “Replacement Metal-Gate NMOSFETs with ALD TaN/EP-Cu, PVD Ta, and PVD TaN Electrode,” IEEE Electron Device Letters, vol. 24, No. 5, May 2003, pp. 304-305.

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

Butted contact structure does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Butted contact structure, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Butted contact structure will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-4202678

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