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Wai Lo Patents
Inventor:
Lo; Wai
Address:
Lake Oswego, OR
No. of patents:
15
Patents:




Patent Number Title Of Patent Date Issued
7413996 High k gate insulator removal August 19, 2008
A method of forming a high k gate insulation layer in an integrated circuit on a substrate. A high k layer is deposited onto the substrate, and patterned with a mask to define the high k gate insulation layer and exposed portions of the high k layer. The exposed portions of the high k
7405116 Application of gate edge liner to maintain gate length CD in a replacement gate transistor flow July 29, 2008
A method to maintain a well-defined gate stack profile, deposit or grow a uniform gate dielectric, and maintain gate length CD control by means of an inert insulating liner deposited after dummy gate etch and before the spacer process. The liner material is selective to wet chemicals use
7365015 Damascene replacement metal gate process with controlled gate profile and length using Si.sub.1- April 29, 2008
A method of forming a metal gate in a wafer. PolySi.sub.1-xGe.sub.x and polysilicon are used to form a tapered groove. Gate oxide, PolySi.sub.1-xGe.sub.x, and polysilicon is deposited on a wafer. A resist pattern is formed. A portion of the polysilicon, PolySi.sub.1-xGe.sub.x, and ga
7341978 Superconductor wires for back end interconnects March 11, 2008
An improvement to an integrated circuit, of electrically conductive interconnects formed of a superconducting material. In this manner, the electrically conductive interconnects can be made very small, and yet still have adequate conductively. In various embodiments, all of the elect
7312127 Incorporating dopants to enhance the dielectric properties of metal silicates December 25, 2007
The present invention provides a method of forming a high-k dielectric layer on a semiconductor wafer. A metal silicate dielectric layer is initially deposited on the wafer. A dopant having dissociable oxygen is introduced into the metal silicate on the wafer. According to one embodi
7259462 Interconnect dielectric tuning August 21, 2007
An improvement to a method of forming an integrated circuit. An etch stop layer is formed to overlie the front end processing layers of the integrated circuit. Support structures are formed that are disposed so as to support electrically conductive interconnects on various levels of the
7081406 Interconnect dielectric tuning July 25, 2006
An improvement to a method of forming an integrated circuit. An etch stop layer is formed to overlie the front end processing layers of the integrated circuit. Support structures are formed that are disposed so as to support electrically conductive interconnects on various levels of the
7064062 Incorporating dopants to enhance the dielectric properties of metal silicates June 20, 2006
The present invention provides a method of forming a high-k dielectric layer on a semiconductor wafer. A metal silicate dielectric layer is initially deposited on the wafer. A dopant having dissociable oxygen is introduced into the metal silicate on the wafer. According to one embodi
6864141 Method of incorporating nitrogen into metal silicate based dielectrics by energized nitrogen ion March 8, 2005
A method of making a thin gate dielectric includes providing a metal silicate on a silicon substrate. Nitrogen is implanted into the metal silicate.
6849512 Thin gate dielectric for a CMOS transistor and method of fabrication thereof February 1, 2005
A method of making a thin gate dielectric includes implanting a barrier substance into a region of a silicon substrate. A capacitance-increasing material is implanted into the silicon substrate. An outside layer of the silicon substrate is oxidized to form a first silicon oxide layer. Th
6830943 Thin film CMOS calibration standard having protective cover layer December 14, 2004
Embodiments of the invention include a calibration standard for semiconductor metrology tools. The standard comprises a substrate having a surface with a calibration layer formed thereon. A protective layer is formed over the underlying calibration layer. The calibration layer and pr
6818516 Selective high k dielectrics removal November 16, 2004
A method of forming a gate structure in an integrated circuit on a substrate. A high k layer is formed on the substrate, and a gate electrode layer is formed on the high k layer. The gate electrode layer is the patterned. LDD regions are formed using an ion implantation process, ther
6746925 High-k dielectric bird's beak optimizations using in-situ O2 plasma oxidation June 8, 2004
In a method of forming an integrated circuit device, sidewall oxides are formed by plasma oxidation on the patterned gate. This controls encroachment beneath a dielectric layer underlying the patterned gate. The patterned gate is oxidized using in-situ O.sub.2 plasma oxidation. The p
6674092 Thin film CMOS calibration standard having protective cover layer January 6, 2004
Embodiments of the invention include a calibration standard for semiconductor metrology tools. The standard comprises a substrate having a surface with a calibration layer formed thereon. A protective layer is formed over the underlying calibration layer. The calibration layer and pr
6606450 Method and apparatus for processing video signals having associated access restriction data August 12, 2003
A method and apparatus that includes processing for restricting usage of video signals in accordance with associated access restriction data begins by detecting the presence of the associated access restriction data as video signals are being received. The processing continues by interpr


 
 
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