Tom Lee

US Patent:

20130134557, May 30, 2013

Filed:

Jan 24, 2013

Appl. No.:

13/749146

Inventors:

International Business Machines Corporation - Armonk NY, US
Tom C. Lee - Essex Junction VT, US
Junjun Li - Williston VT, US
Souvick Mitra - Essex Junction VT, US
Christopher S. Putnam - Hinesburg VT, US
Anthony K. Stamper - Williston VT, US

Assignee:

INTERNATIONAL BUSINESS MACHINES CORPORATION - Armonk NY

International Classification:

H01L 49/02

US Classification:

257534

Abstract:

Metal-insulator-metal (MIM) capacitors and methods for fabricating MIM capacitors. The MIM capacitor includes an interlayer dielectric (ILD) layer with apertures each bounded by a plurality of sidewalls and each extending from the top surface of the ILD layer into the first interlayer dielectric layer. A layer stack, which is disposed on the sidewalls of the apertures and the top surface of the ILD layer, includes a bottom conductive electrode, a top conductive electrode, and a capacitor dielectric between the bottom and top conductive electrodes.

US Patent:

20130161687, Jun 27, 2013

Filed:

Feb 8, 2013

Appl. No.:

13/762948

Inventors:

INTERNATIONAL BUSINESS MACHINES CORPORATION - Armonk NY, US
Tom C. LEE - Essex Junction VT, US
Junjun LI - Williston VT, US
Souvick MITRA - Essex Junction VT, US
Christopher S. PUTNAM - Hinesburg VT, US

Assignee:

INTERNATIONAL BUSINESS MACHINES CORPORATION - Armonk NY

International Classification:

H01L 29/747

US Classification:

257121

Abstract:

Bi-directional back-to-back stacked SCRs for high-voltage pin ESD protection, methods of manufacture and design structures are provided. The device includes a symmetrical bi-directional back-to-back stacked silicon controlled rectifier (SCR). An anode of a first of the back-to-back stacked SCR is connected to an input. An anode of a second of the back-to-back stacked SCR is connected to ground. Cathodes of the first and second of the back-to-back stacked SCR are connected together. Each of the symmetrical bi-directional back-to-back SCRs include a pair of diodes directing current towards the cathodes which, upon application of a voltage, become reverse biased effectively and deactivating elements from one of the symmetrical bi-directional back-to-back SCRs while the diodes of another of the symmetrical bi-directional back-to-back SCRs direct current in the same direction as the reverse biased diodes.