International Business Machines Corporation

Globalfoundries Inc.

Kimball M Watson

Ping-Chuan Wang

Timothy Dooling Sullivan

Joseph M Lukaitis

Anthony K Stamper

Qizhi Liu

Zhong-Xiang He

Baozhen Li

Christopher David Muzzy

Tom C Lee

William Thomas Motsiff

Jean E Wynne

Gerald Matusiewicz

J Edwin Hostetter

Dinesh A Badami

Jeffrey P Gambino

Alvin Jose Joseph

Hanyi Ding

Natalie Barbara Feilchenfeld

Stephen Peter Ayotte

Peter James Lindgren

David S Collins

BethAnn Rainey

Benjamin T Voegeli

Deborah M Massey

David Erin Moran

Timothy J O'Gorman

Robert Russell Robison

Douglas Duane Coolbaugh

Robert Mark Rassel

Alain F Loiseau

Ebenezer E Eshun

Andreas Daniel Stricker

Zhijian Yang

Ephrem G Gebreselasie

David L Harmon

Steven W Mittl

Dustin Kenneth Slisher

Robert Daniel Edwards

Jeffrey H Sloan

Jenifer E Lary

Stewart E Rauch, Iii

Kai Xiu

Ward A Johnson

Pui Ling Yee

Robert Edgar Davis

Richard Antoine Poro

Christopher D c/o Ibm United Kingdom Ltd Muzzy

A through-silicon via (TSV) capacitive test structure and method of determining TSV depth based on capacitance is disclosed. The TSV capacitive test structure is formed from a plurality of TSV bars that are evenly spaced. A first group of bars are electrically connected to form a first capacitor node, and a second group of bars is electrically connected to form a second capacitor node. The capacitance is measured, and a TSV depth is computed, prior to backside thinning. The computed TSV depth may then be fed to downstream grinding and/or polishing tools to control the backside thinning process such that the semiconductor wafer is thinned such that the backside is flush with the TSV.

Inline measurement of through-silicon via depth

A method for matching a pair of matched bipolar transistors in an integrated circuit is disclosed. Within a device, it is determined which transistor is a correctable transistor of the pair of bipolar transistors. The correctable transistor is the transistor of the pair of bipolar transistors having a chosen characteristic which when electrically stressed will converge with a chosen characteristic of the other transistor of the pair of bipolar transistors. The pair of bipolar transistors are matched by electrically stressing the correctable transistor of the bipolar transistors.

Matching of bipolar transistor pair through electrical stress

Micro-Electro-Mechanical System (MEMS) structures, methods of manufacture and usage, and design structures are disclosed herein. The method includes applying a first voltage polarity to an actuator of a Micro-Electro-Mechanical System (MEMS) structure to place the MEMS structure in a predetermined state for a first operating condition. The method further includes applying a second voltage polarity which is opposite from the first voltage polarity to the actuator of the MEMS structure during a subsequent operating condition.

Micro-electro-mechanical system (MEMS) structure and design structures

A structure and method of fabricating the structure includes a semiconductor substrate having a top surface defining a horizontal direction and a plurality of interconnect levels stacked from a lowermost level proximate the top surface of the semiconductor substrate to an uppermost level furthest from the top surface. Each of the interconnect levels include vertical metal conductors physically connected to one another in a vertical direction perpendicular to the horizontal direction. The vertical conductors in the lowermost level being physically connected to the top surface of the substrate, and the vertical conductors forming a heat sink connected to the semiconductor substrate. A resistor is included in a layer immediately above the uppermost level. The vertical conductors being aligned under a downward vertical resistor footprint of the resistor, and each interconnect level further include horizontal metal conductors positioned in the horizontal direction and being connected to the vertical conductors.

Method of fabricating thermally controlled refractory metal resistor

Methods of electrically programming a diffusion resistor by using trapped charge in a trapped charge region adjacent to the resistor to vary the resistance of the resistor, and the resistor, are disclosed. In one embodiment, a method includes forming a diffusion resistor in a substrate; forming a trapped charge region adjacent to the diffusion resistor; and adjusting a resistance of the diffusion resistor by controlling the trapped charge in the trapped charge region.

Methods of forming and programming an electronically programmable resistor

Thermally controlled refractory metal resistor

A method of forming a semiconductor structure includes: forming a resistor over a substrate; forming at least one first contact in contact with the resistor; and forming at least one second contact in contact with the resistor. The resistor is structured and arranged such that current flows from the at least one first contact to the at least one second contact through a central portion of the resistor. The resistor includes at least one extension extending laterally outward from the central portion in a direction parallel to the current flow. The method includes sizing the at least one extension based on a thermal diffusion length of the resistor.

Thin film resistors and methods of manufacture

An array of through substrate vias (TSVs) is formed through a semiconductor substrate and a contact-via-level dielectric layer thereupon. A metal-wire-level dielectric layer and a line-level metal wiring structure embedded therein are formed directly on the contact-via-level dielectric layer. The line-level metal wiring structure includes cheesing holes that are filled with isolated portions of the metal-wire-level dielectric layer. In one embodiment, the entirety of the cheesing holes is located outside the area of the array of the TSVs to maximize the contact area between the TSVs and the line-level metal wiring structure. In another embodiment, a set of cheesing holes overlying an entirety of seams in the array of TSVs is formed to prevent trapping of any plating solution in the seams of the TSVs during plating to prevent corrosion of the TSVs at the seams.

Metal wiring structure for integration with through substrate vias

A structure and a method. The method includes: forming a dielectric layer on a substrate; forming electrically conductive first and second wires in the dielectric layer, top surfaces of the first and second wires coplanar with a top surface of the dielectric layer; and either (i) forming an electrically conductive third wire on the top surface of the dielectric layer, and over the top surfaces of the first and second wires, the third wire electrically contacting each of the first and second wires, the third wire not detectable by optical microscopy or (ii) forming an electrically conductive third wire between the top surface of the dielectric layer and the substrate, the third wire electrically contacting each of the first and second wires, the third wire not detectable by optical microscopy.

Optically transparent wires for secure circuits and methods of making same

An electrically programmable resistor is presented. In one embodiment, a resistor includes a doped body within a substrate; a trapped charge region adjacent to the resistor, the resistance of the resistor controlled by an amount of trapped charge in the trapped charge region.

Electrically programmable resistor

An IC interconnect according to one embodiment includes a first via positioned in a dielectric and coupled to a high current device at one end; a buffer metal segment positioned in a dielectric and coupled to a top portion of the first via; and a plurality of second vias positioned in a dielectric and coupled to the buffer metal segment at a bottom end and to a metal power line at a top end thereof, wherein the first via is coupled to a first end of the buffer metal segment and the plurality of second vias are coupled to a second end of the buffer metal segment, such that the first via is horizontally off-set from all of the plurality of second vias, wherein the butter metal segment is substantially shorter in length than the metal power line.

IC interconnect for high current

A method for programming a laser fuse. The laser fuse has a fuse link including a material having a characteristic of changing its electrical resistance after being exposed to a laser beam. The laser beam is directed to the fuse link, the laser beam being controlled such that, in response to the impact of the laser beam upon the fuse link, the electrical resistance of the fuse link changes but the fuse link is not blown off.

Programming of laser fuse

Growing community of inventors

Essex Junction, VT, United States of America

Kimball M Watson