Techniques for manipulating patterned features using ions

S Ruffell, H Dai, J Lang, J Hautala - US Patent 9,984,889, 2018 - Google Patents
A method may include providing a surface feature on a substrate, the surface feature
comprising a feature shape a feature location, and a dimension along a first direction within …

Techniques to engineer nanoscale patterned features using ions

S Ruffell, J Hautala, A Brand, H Dai - US Patent 10,008,384, 2018 - Google Patents
A method of patterning a substrate. The method may include providing a surface feature on
the substrate, the surface feature having a first dimension along a first direction within a …

Apparatus and techniques for filling a cavity using angled ion beam

TL Chen, J Hautala, S Liang - US Patent 9,997,351, 2018 - Google Patents
A method may include generating a plasma in a plasma chamber and directing the ions
comprising at least one of a condensing species and inert gas species from the plasma to a …

Epitaxial hexagonal materials on IBAD-textured substrates

V Matias, C Yung - US Patent 9,735,318, 2017 - Google Patents
A multilayer structure including a hexagonal epitaxial layer, such as GaN or other group III-
nitride (III-N) semiconductors, a< 111> oriented textured layer, and a non-single crystal …

Techniques and apparatus for elongation patterning using angled ion beams

KR Anglin, S Ruffell - US Patent 11,127,593, 2021 - Google Patents
A method of patterning a substrate may include providing a cavity in a layer, disposed on the
substrate. The cavity may have a first length along a first direction and a first width along a …

Device structure and techniques for forming semiconductor device having angled conductors

S Varghese, A Renau, M Evans, J Hautala… - US Patent App. 16 …, 2020 - Google Patents
A method of forming a device may include forming a component in a first level of a device
structure; forming a contact cavity overlapping the component, the contact cavity forming a …

Group-III nitride devices and systems on IBAD-textured substrates

V Matias, C Yung - US Patent 10,546,976, 2020 - Google Patents
H01L33/00—Semiconductor devices with at least one potential-jump barrier or surface
barrier specially adapted for light emission; Processes or apparatus specially adapted for …

Group-III nitride devices and systems on IBAD-textured substrates

V Matias - US Patent 10,243,105, 2019 - Google Patents
H01L33/00—Semiconductor devices with at least one potential-jump barrier or surface
barrier specially adapted for light emission; Processes or apparatus specially adapted for …

Techniques for forming patterned features using directional ions

SR Sherman, J Hautala, S Ruffell - US Patent 10,229,832, 2019 - Google Patents
Primary Examiner—Binh X Tran ABSTRACT A method of patterning a substrate. The method
may include: providing a first surface feature and a second surface feature in a staggered …

Radical etching in gate formation

WY Tsai, FY Nien, HW Huang, CS Lee - US Patent 11,088,262, 2021 - Google Patents
A method includes providing a structure having a substrate and a fin protruding from the
substrate; forming a dummy gate stack over the fin; forming a gate spacer on sidewalls of the …