H01L21/3215

METHOD OF MANUFACTURING SEMICONDUCTOR DEVICE
20170287786 · 2017-10-05 · ·

A process of forming a first mask on a first region of a metal film formed on a surface of a substrate, a process of modulating a work function of a first exposed region of the metal film, using plasma of a first process gas, a process of removing the first mask, a process of forming a second mask on a second region of the metal film, and a process of modulating the work function of a second exposed region of the metal film, using plasma of a second process gas are executed.

Method of fabricating a semiconductor structure

A method of making a semiconductor structure, the method including forming a conductive layer over a substrate. The method further includes forming a first imaging layer over the conductive layer, where the first imaging layer comprises a plurality of layers. The method further includes forming openings in the first imaging layer to expose a first set of areas of the conductive layer. The method further includes implanting ions into each area of the first set of area. The method further includes forming a second imaging layer over the conductive layer. The method further includes forming openings in the second imaging layer to expose a second set of areas of the conductive layer, wherein the second set of areas is different from the first set of areas. The method further includes implanting ions into the each area of the second set of areas.

Method of fabricating a semiconductor structure

A method of making a semiconductor structure, the method including forming a conductive layer over a substrate. The method further includes forming a first imaging layer over the conductive layer, where the first imaging layer comprises a plurality of layers. The method further includes forming openings in the first imaging layer to expose a first set of areas of the conductive layer. The method further includes implanting ions into each area of the first set of area. The method further includes forming a second imaging layer over the conductive layer. The method further includes forming openings in the second imaging layer to expose a second set of areas of the conductive layer, wherein the second set of areas is different from the first set of areas. The method further includes implanting ions into the each area of the second set of areas.

Method for forming a split-gate flash memory cell device with a low power logic device

A method of manufacturing an embedded flash memory device is provided. A pair of gate stacks are formed spaced over a semiconductor substrate, and including floating gates and control gates over the floating gates. A common gate layer is formed over the gate stacks and the semiconductor substrate, and lining sidewalls of the gate stacks. A first etch is performed into the common gate layer to recess an upper surface of the common gate layer to below upper surfaces respectively of the gate stacks, and to form an erase gate between the gate stacks. Hard masks are respectively formed over the erase gate, a word line region of the common gate layer, and a logic gate region of the common gate layer. A second etch is performed into the common gate layer with the hard masks in place to concurrently form a word line and a logic gate.

GATE STRUCTURE OF SEMICONDUCTOR DEVICE AND METHOD OF MANUFACTURE
20220310405 · 2022-09-29 ·

A semiconductor device and method of manufacture are provided. In some embodiments a divergent ion beam is utilized to implant ions into a capping layer, wherein the capping layer is located over a first metal layer, a dielectric layer, and an interfacial layer over a semiconductor fin. The ions are then driven from the capping layer into one or more of the first metal layer, the dielectric layer, and the interfacial layer.

GATE STRUCTURE OF SEMICONDUCTOR DEVICE AND METHOD OF MANUFACTURE
20220310405 · 2022-09-29 ·

A semiconductor device and method of manufacture are provided. In some embodiments a divergent ion beam is utilized to implant ions into a capping layer, wherein the capping layer is located over a first metal layer, a dielectric layer, and an interfacial layer over a semiconductor fin. The ions are then driven from the capping layer into one or more of the first metal layer, the dielectric layer, and the interfacial layer.

Method to match SOI transistors using a local heater element
09735172 · 2017-08-15 · ·

An integrated circuit with a matched transistor pair with a matching resistance heater coupled to each transistor of the matched transistor pair. A method for forming a matching resistance heater. A method for operating an SOI integrated circuit containing a matched transistor pair with a matching resistance heater coupled to each transistor of the matched transistor pair.

Method for fabricating semiconductor devices
11430794 · 2022-08-30 · ·

A method for fabricating a semiconductor device includes providing a substrate including a cell region and a core/peripheral region around the cell region, forming a gate insulating film on the substrate of the core/peripheral region, forming a first conductive film of a first conductive type on the gate insulating film, forming a diffusion blocking film within the first conductive film, the diffusion blocking film being spaced apart from the gate insulating film in a vertical direction, after forming the diffusion blocking film, forming an impurity pattern including impurities within the first conductive film, diffusing the impurities through a heat treatment process to form a second conductive film of a second conductive type and forming a metal gate electrode on the second conductive film, wherein the diffusion blocking film includes helium (He) and/or argon (Ar).

Ion implantation to reduce nanosheet gate length variation

Approaches herein decrease nanosheet gate length variations by implanting a gate layer material with ions prior to etching. A method may include forming a dummy gate structure over a nanosheet stack, the dummy gate structure including a hardmask atop a gate material layer, and removing a portion of the hardmask to expose a first area and a second area of the gate material layer. The method may further include implanting the dummy gate structure to modify the first and second areas of the gate material layer, and etching the first and second areas of the gate material layer to form a treated layer along a sidewall of a third area of the gate material layer, wherein the third area is beneath the hardmask.

TRANSISTOR DEVICES HAVING SOURCE/DRAIN STRUCTURE CONFIGURED WITH HIGH GERMANIUM CONTENT PORTION
20220271125 · 2022-08-25 ·

Techniques are disclosed for forming column IV transistor devices having source/drain regions with high concentrations of germanium, and exhibiting reduced parasitic resistance relative to conventional devices. In some example embodiments, the source/drain regions each includes a thin p-type silicon or germanium or SiGe deposition with the remainder of the source/drain material deposition being p-type germanium or a germanium alloy (e.g., germanium:tin or other suitable strain inducer, and having a germanium content of at least 80 atomic % and 20 atomic % or less other components). In some cases, evidence of strain relaxation may be observed in the germanium rich cap layer, including misfit dislocations and/or threading dislocations and/or twins. Numerous transistor configurations can be used, including both planar and non-planar transistor structures (e.g., FinFETs and nanowire transistors), as well as strained and unstrained channel structures.