J
Joohan Lee
Publications - 5
Citations - 311
Joohan Lee is an academic researcher. The author has contributed to research in topics: Laser & Injection seeder. The author has an hindex of 3, co-authored 5 publications receiving 311 citations.
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Patent
Methods and systems for thermal-based laser processing a multi-material device
James J. Cordingley,Jonathan S. Ehrmann,David M. Filgas,Shepard D. Johnson,Joohan Lee,Donald V. Smart,Donald J. Svetkoff +6 more
TL;DR: In this article, a method and system for locally processing a predetermined microstructure formed on a substrate without causing undesirable changes in electrical or physical characteristics of the substrate or other structures formed on the substrate are provided.
Patent
Laser-based method and system for memory link processing with picosecond lasers
Bo Gu,Donald V. Smart,James J. Cordingley,Joohan Lee,Donald J. Svetkoff,Shepard D. Johnson,Jonathan S. Ehrmann +6 more
TL;DR: In this paper, a laser-based method of removing a target link structure of a circuit fabricated on a substrate includes generating a pulsed laser output at a pre-determined wavelength less than an absorption edge of the substrate.
Patent
Methods and systems for processing a device, methods and systems for modeling same and the device
James J. Cordingley,Roger D. Dowd,Jonathan S. Ehrmann,Joseph J. Griffiths,Joohan Lee,Donald V. Smart,Donald J. Svetkoff +6 more
TL;DR: In this paper, a method and system for locally processing a predetermined microstructure formed on a substrate without causing undesirable changes in electrical or physical characteristics of the substrate or other structures formed on the substrate are provided.
Patent
Memory link processing with picosecond lasers
James J. Cordingley,Jonathan S. Ehrmann,Bo Gu,Shepard D. Johnson,Joohan Lee,Donald V. Smart,Donald J. Svetkoff +6 more
TL;DR: In this article, a laser-based method of removing a target link (107) structure of a circuit fabricated on a substrate (110) includes generating a pulsed laser output (104) at a pre-determined wavelength less than an absorption edge of the substrate.
Proceedings ArticleDOI
Laser Fuse Processing for Advanced Memory Designs
Joohan Lee,James Cordingley +1 more
TL;DR: In this paper, control of laser parameters such as wavelength, pulse shape, polarization, multiple pulses and ultra-short pulses improves the laser cutting reliability of various fine pitch fuses that are used for modern circuit redundancies.