Memory Cells Comprising Ferroelectric Material And Including Current Leakage Paths Having Different Total Resistances
A memory cell comprises a capacitor having a first conductive capacitor electrode having laterally-spaced walls that individually have a top surface. A second conductive capacitor electrode is laterally between the walls of the first capacitor electrode, and comprises a portion above the first capac...
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creator | Balakrishnan, Muralikrishnan Cook, Beth R Ramaswamy, Durai Vishak Nirmal |
description | A memory cell comprises a capacitor having a first conductive capacitor electrode having laterally-spaced walls that individually have a top surface. A second conductive capacitor electrode is laterally between the walls of the first capacitor electrode, and comprises a portion above the first capacitor electrode. Ferroelectric material is laterally between the walls of the first capacitor electrode and laterally between the second capacitor electrode and the first capacitor electrode. The capacitor comprises an intrinsic current leakage path from one of the first and second capacitor electrodes to the other through the ferroelectric material. A parallel current leakage path is between an elevationally-inner surface of the portion of the second capacitor electrode that is above the first capacitor electrode and at least one of the individual top surfaces of the laterally-spaced walls of the first capacitor electrode. The parallel current leakage path is circuit-parallel the intrinsic current leakage path and of lower total resistance than the intrinsic current leakage path. Other aspects, including methods, are disclosed. |
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A second conductive capacitor electrode is laterally between the walls of the first capacitor electrode, and comprises a portion above the first capacitor electrode. Ferroelectric material is laterally between the walls of the first capacitor electrode and laterally between the second capacitor electrode and the first capacitor electrode. The capacitor comprises an intrinsic current leakage path from one of the first and second capacitor electrodes to the other through the ferroelectric material. A parallel current leakage path is between an elevationally-inner surface of the portion of the second capacitor electrode that is above the first capacitor electrode and at least one of the individual top surfaces of the laterally-spaced walls of the first capacitor electrode. The parallel current leakage path is circuit-parallel the intrinsic current leakage path and of lower total resistance than the intrinsic current leakage path. Other aspects, including methods, are disclosed.</description><language>eng</language><subject>BASIC ELECTRIC ELEMENTS ; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR ; ELECTRICITY ; SEMICONDUCTOR DEVICES</subject><creationdate>2020</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20200903&DB=EPODOC&CC=US&NR=2020279907A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25562,76317</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20200903&DB=EPODOC&CC=US&NR=2020279907A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>Balakrishnan, Muralikrishnan</creatorcontrib><creatorcontrib>Cook, Beth R</creatorcontrib><creatorcontrib>Ramaswamy, Durai Vishak Nirmal</creatorcontrib><title>Memory Cells Comprising Ferroelectric Material And Including Current Leakage Paths Having Different Total Resistances</title><description>A memory cell comprises a capacitor having a first conductive capacitor electrode having laterally-spaced walls that individually have a top surface. A second conductive capacitor electrode is laterally between the walls of the first capacitor electrode, and comprises a portion above the first capacitor electrode. Ferroelectric material is laterally between the walls of the first capacitor electrode and laterally between the second capacitor electrode and the first capacitor electrode. The capacitor comprises an intrinsic current leakage path from one of the first and second capacitor electrodes to the other through the ferroelectric material. A parallel current leakage path is between an elevationally-inner surface of the portion of the second capacitor electrode that is above the first capacitor electrode and at least one of the individual top surfaces of the laterally-spaced walls of the first capacitor electrode. The parallel current leakage path is circuit-parallel the intrinsic current leakage path and of lower total resistance than the intrinsic current leakage path. Other aspects, including methods, are disclosed.</description><subject>BASIC ELECTRIC ELEMENTS</subject><subject>ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR</subject><subject>ELECTRICITY</subject><subject>SEMICONDUCTOR DEVICES</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2020</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNqNi8EKgkAURd20iOofHrQOrBbiUiwxSIiytTzGqw2NMzIzBv19Gn1A3MVZnHPnwVCgM_ZNKZRylJqut9JJ3VIGaw0UhLdSUMEeVrKiRNd00kIN9RSlg7XQns7gJ7egC_uHo5xfkzzIpsFXl8aP1yucdJ61gFsGs4aVw-rHRbDOjmWab9CbCq5nAQ1f3W-7cFwUx2GUbPf_VR-gEUW0</recordid><startdate>20200903</startdate><enddate>20200903</enddate><creator>Balakrishnan, Muralikrishnan</creator><creator>Cook, Beth R</creator><creator>Ramaswamy, Durai Vishak Nirmal</creator><scope>EVB</scope></search><sort><creationdate>20200903</creationdate><title>Memory Cells Comprising Ferroelectric Material And Including Current Leakage Paths Having Different Total Resistances</title><author>Balakrishnan, Muralikrishnan ; Cook, Beth R ; Ramaswamy, Durai Vishak Nirmal</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_US2020279907A13</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2020</creationdate><topic>BASIC ELECTRIC ELEMENTS</topic><topic>ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR</topic><topic>ELECTRICITY</topic><topic>SEMICONDUCTOR DEVICES</topic><toplevel>online_resources</toplevel><creatorcontrib>Balakrishnan, Muralikrishnan</creatorcontrib><creatorcontrib>Cook, Beth R</creatorcontrib><creatorcontrib>Ramaswamy, Durai Vishak Nirmal</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Balakrishnan, Muralikrishnan</au><au>Cook, Beth R</au><au>Ramaswamy, Durai Vishak Nirmal</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Memory Cells Comprising Ferroelectric Material And Including Current Leakage Paths Having Different Total Resistances</title><date>2020-09-03</date><risdate>2020</risdate><abstract>A memory cell comprises a capacitor having a first conductive capacitor electrode having laterally-spaced walls that individually have a top surface. A second conductive capacitor electrode is laterally between the walls of the first capacitor electrode, and comprises a portion above the first capacitor electrode. Ferroelectric material is laterally between the walls of the first capacitor electrode and laterally between the second capacitor electrode and the first capacitor electrode. The capacitor comprises an intrinsic current leakage path from one of the first and second capacitor electrodes to the other through the ferroelectric material. A parallel current leakage path is between an elevationally-inner surface of the portion of the second capacitor electrode that is above the first capacitor electrode and at least one of the individual top surfaces of the laterally-spaced walls of the first capacitor electrode. The parallel current leakage path is circuit-parallel the intrinsic current leakage path and of lower total resistance than the intrinsic current leakage path. Other aspects, including methods, are disclosed.</abstract><oa>free_for_read</oa></addata></record> |
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subjects | BASIC ELECTRIC ELEMENTS ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR ELECTRICITY SEMICONDUCTOR DEVICES |
title | Memory Cells Comprising Ferroelectric Material And Including Current Leakage Paths Having Different Total Resistances |
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