Wide-base magnetic tunnel junction device with sidewall polymer spacer

A semiconductor device including a second magnetic tunnel junction stack aligned above a spin conductor layer above a first magnetic junction stack, a sidewall dielectric surrounding the second magnetic tunnel junction stack, a vertical side surface of the sidewall dielectric is aligned with vertica...

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Main Authors Marchack, Nathan P, Hashemi, Pouya, Kothandaraman, Chandrasekharan
Format Patent
LanguageEnglish
Published 07.05.2024
Subjects
ELECTRICITY
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Abstract A semiconductor device including a second magnetic tunnel junction stack aligned above a spin conductor layer above a first magnetic junction stack, a sidewall dielectric surrounding the second magnetic tunnel junction stack, a vertical side surface of the sidewall dielectric is aligned with vertical side surfaces of the spin conductor layer and the first magnetic junction stack. A method including forming a first magnetic tunnel junction stack, a spin conductor layer and a second magnetic tunnel junction stack, patterning the second magnetic tunnel junction stack, while not patterning the spin conductor layer and the first magnetic tunnel junction stack, forming a sidewall dielectric and a polymer layer on the sidewall dielectric. A method including patterning a second magnetic tunnel junction stack, while not patterning a spin conductor layer below the second magnetic tunnel junction stack nor a first magnetic tunnel junction stack below the spin conductor layer.
AbstractList A semiconductor device including a second magnetic tunnel junction stack aligned above a spin conductor layer above a first magnetic junction stack, a sidewall dielectric surrounding the second magnetic tunnel junction stack, a vertical side surface of the sidewall dielectric is aligned with vertical side surfaces of the spin conductor layer and the first magnetic junction stack. A method including forming a first magnetic tunnel junction stack, a spin conductor layer and a second magnetic tunnel junction stack, patterning the second magnetic tunnel junction stack, while not patterning the spin conductor layer and the first magnetic tunnel junction stack, forming a sidewall dielectric and a polymer layer on the sidewall dielectric. A method including patterning a second magnetic tunnel junction stack, while not patterning a spin conductor layer below the second magnetic tunnel junction stack nor a first magnetic tunnel junction stack below the spin conductor layer.
Author Marchack, Nathan P
Kothandaraman, Chandrasekharan
Hashemi, Pouya
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Snippet A semiconductor device including a second magnetic tunnel junction stack aligned above a spin conductor layer above a first magnetic junction stack, a sidewall...
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Title Wide-base magnetic tunnel junction device with sidewall polymer spacer
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