Magnetoresistive random access memory with reduced switching...

Details Magnetoresistive random access memory with reduced switching... Magnetoresistive random access memory with reduced switching...

2005-11-22

2005-11-22

Nelms, David (Department: 2818)

Active solid-state devices (e.g., transistors, solid-state diode

Field effect device

Having insulated electrode

C257S016000

Reexamination Certificate

active

06967366

ABSTRACT:
An array of multi-state, multi-layer magnetic memory devices (10) wherein each memory device comprises a nonmagnetic spacer region (22) and a free magnetic region (24) positioned adjacent to a surface of the nonmagnetic spacer region, the free magnetic region including a plurality of magnetic layers (36,34,38), wherein the magnetic layer (36) in the plurality of magnetic layers positioned adjacent to the surface of the nonmagnetic spacer region has a thickness substantially greater than a thickness of each of the magnetic layers (34,38) subsequently grown thereon wherein the thickness is chosen to improve the magnetic switching variation so that the magnetic switching field for each memory device in the array of memory devices is more uniform.

REFERENCES:
patent: 3163853 (1964-12-01), Belson
patent: 3448438 (1969-06-01), Hansen et al.
patent: 3573760 (1971-04-01), Chañg et al.
patent: 3638199 (1972-01-01), Kolankowsky et al.
patent: 3707706 (1972-12-01), Kefalas
patent: 3913080 (1975-10-01), Leo et al.
patent: 4103315 (1978-07-01), Hempstead et al.
patent: 4351712 (1982-09-01), Cuomo et al.
patent: 4356523 (1982-10-01), Yeh
patent: 4455626 (1984-06-01), Lutes
patent: 4556925 (1985-12-01), Suenaga et al.
patent: 4663685 (1987-05-01), Tsang
patent: 4719568 (1988-01-01), Carrubba et al.
patent: 4731757 (1988-03-01), Daughton et al.
patent: 4751677 (1988-06-01), Daughton et al.
patent: 4754431 (1988-06-01), Jenson
patent: 4780848 (1988-10-01), Daughton et al.
patent: 4825325 (1989-04-01), Howard
patent: 4884235 (1989-11-01), Thiele
patent: 5039655 (1991-08-01), Pisharody
patent: 5075247 (1991-12-01), Matthews
patent: 5159513 (1992-10-01), Dieny et al.
patent: 5173873 (1992-12-01), Wu et al.
patent: 5258884 (1993-11-01), Howard et al.
patent: 5268806 (1993-12-01), Goubau et al.
patent: 5284701 (1994-02-01), Hamon
patent: 5285339 (1994-02-01), Chen et al.
patent: 5301079 (1994-04-01), Cain et al.
patent: 5329486 (1994-07-01), Lage
patent: 5343422 (1994-08-01), Kung et al.
patent: 5346302 (1994-09-01), Ryu
patent: 5347485 (1994-09-01), Taguchi et al.
patent: 5348894 (1994-09-01), Gnade et al.
patent: 5349302 (1994-09-01), Cooper
patent: 5361226 (1994-11-01), Taguchi et al.
patent: 5375082 (1994-12-01), Katti et al.
patent: 5396455 (1995-03-01), Brady et al.
patent: 5398200 (1995-03-01), Mazure et al.
patent: 5408377 (1995-04-01), Gurney et al.
patent: 5420819 (1995-05-01), Pohm
patent: 5432734 (1995-07-01), Kawano et al.
patent: 5442508 (1995-08-01), Smith
patent: 5448515 (1995-09-01), Fukami et al.
patent: 5452243 (1995-09-01), Ansel et al.
patent: 5468985 (1995-11-01), Harima
patent: 5475825 (1995-12-01), Yonezawa et al.
patent: 5477842 (1995-12-01), Maruyama et al.
patent: 5496759 (1996-03-01), Yue et al.
patent: 5498561 (1996-03-01), Sakuma et al.
patent: 5528440 (1996-06-01), Fontana et al.
patent: 5534355 (1996-07-01), Okuno et al.
patent: 5534793 (1996-07-01), Nasserbakht
patent: 5541868 (1996-07-01), Prinz
patent: 5567523 (1996-10-01), Rosenblum et al.
patent: 5569617 (1996-10-01), Yeh et al.
patent: 5585986 (1996-12-01), Parkin
patent: 5587943 (1996-12-01), Torok et al.
patent: 5617071 (1997-04-01), Daughton
patent: 5636093 (1997-06-01), Gijs et al.
patent: 5640343 (1997-06-01), Gallagher et al.
patent: 5650958 (1997-07-01), Gallagher et al.
patent: 5659499 (1997-08-01), Chen et al.
patent: 5661062 (1997-08-01), Prinz
patent: 5673162 (1997-09-01), Saito
patent: 5699293 (1997-12-01), Tehrani et al.
patent: 5702831 (1997-12-01), Chen et al.
patent: 5712612 (1998-01-01), Lee et al.
patent: 5715121 (1998-02-01), Sakakima et al.
patent: 5729410 (1998-03-01), Fontana, Jr. et al.
patent: 5732016 (1998-03-01), Chen et al.
patent: 5734605 (1998-03-01), Zhu et al.
patent: 5745408 (1998-04-01), Chen et al.
patent: 5748519 (1998-05-01), Tehrani et al.
patent: 5757056 (1998-05-01), Chui
patent: 5761110 (1998-06-01), Irrinki et al.
patent: 5764567 (1998-06-01), Parkin
patent: 5766743 (1998-06-01), Fujikata et al.
patent: 5768181 (1998-06-01), Zhu et al.
patent: 5774394 (1998-06-01), Chen et al.
patent: 5774404 (1998-06-01), Eto
patent: 5786275 (1998-07-01), Kubo
patent: 5801984 (1998-09-01), Parkin
patent: 5804250 (1998-09-01), Yang
patent: 5804485 (1998-09-01), Liang
patent: 5825685 (1998-10-01), Yamane et al.
patent: 5828578 (1998-10-01), Blomgren
patent: 5831920 (1998-11-01), Chen et al.
patent: 5832534 (1998-11-01), Sing et al.
patent: 5835314 (1998-11-01), Moodera et al.
patent: 5838608 (1998-11-01), Zhu et al.
patent: 5852574 (1998-12-01), Naji
patent: 5856008 (1999-01-01), Cheong et al.
patent: 5861328 (1999-01-01), Tehrani et al.
patent: 5892708 (1999-04-01), Pohm
patent: 5894447 (1999-04-01), Takashima
patent: 5898612 (1999-04-01), Chen et al.
patent: 5902690 (1999-05-01), Tracy et al.
patent: 5905996 (1999-05-01), Pawlowski
patent: 5907784 (1999-05-01), Larson
patent: 5917749 (1999-06-01), Chen et al.
patent: 5920500 (1999-07-01), Tehrani et al.
patent: 5926414 (1999-07-01), McDowell et al.
patent: 5930164 (1999-07-01), Zhu
patent: 5932343 (1999-08-01), Hayashi et al.
patent: 5940319 (1999-08-01), Durlam et al.
patent: 5943284 (1999-08-01), Mizuno et al.
patent: 5943574 (1999-08-01), Tehrani et al.
patent: 5946227 (1999-08-01), Naji
patent: 5946228 (1999-08-01), Abraham et al.
patent: 5948553 (1999-09-01), Kamijo
patent: 5949622 (1999-09-01), Kamiguchi et al.
patent: 5949696 (1999-09-01), Threewitt
patent: 5953248 (1999-09-01), Chen et al.
patent: 5955211 (1999-09-01), Maeda et al.
patent: 5956267 (1999-09-01), Hurst et al.
patent: 5959880 (1999-09-01), Shi et al.
patent: 5966012 (1999-10-01), Parkin
patent: 5966323 (1999-10-01), Chen et al.
patent: 5976713 (1999-11-01), Fuke et al.
patent: 5978257 (1999-11-01), Zhu et al.
patent: 5982660 (1999-11-01), Bhattacharyya
patent: 5985356 (1999-11-01), Schultz et al.
patent: 5985365 (1999-11-01), Jaye
patent: 5986858 (1999-11-01), Sato et al.
patent: 5986925 (1999-11-01), Naji et al.
patent: 5990011 (1999-11-01), McTeer
patent: 5998040 (1999-12-01), Nakatani et al.
patent: 6004654 (1999-12-01), Shinjo et al.
patent: 6005753 (1999-12-01), Fontana, Jr. et al.
patent: 6016269 (2000-01-01), Peterson et al.
patent: 6023395 (2000-02-01), Dill et al.
patent: 6048739 (2000-04-01), Hurst et al.
patent: 6052302 (2000-04-01), Moyer et al.
patent: 6052303 (2000-04-01), Chevallier et al.
patent: 6054226 (2000-04-01), Takeda et al.
patent: 6055178 (2000-04-01), Naji
patent: 6055179 (2000-04-01), Koganei et al.
patent: 6069820 (2000-05-01), Inomata et al.
patent: 6072718 (2000-06-01), Abraham et al.
patent: 6083764 (2000-07-01), Chen
patent: 6097625 (2000-08-01), Scheuerlein
patent: 6097626 (2000-08-01), Brug et al.
patent: 6111784 (2000-08-01), Nishimura
patent: 6114719 (2000-09-01), Dill et al.
patent: 6120842 (2000-09-01), Lu et al.
patent: 6127045 (2000-10-01), Gill
patent: 6134060 (2000-10-01), Ryat
patent: 6134139 (2000-10-01), Bhattacharyya et al.
patent: 6145055 (2000-11-01), Fujimoto
patent: 6163477 (2000-12-01), Tran
patent: 6165803 (2000-12-01), Chen et al.
patent: 6166948 (2000-12-01), Parkin et al.
patent: 6169687 (2001-01-01), Johnson
patent: 6169689 (2001-01-01), Naji
patent: 6172903 (2001-01-01), Nishimura
patent: 6175475 (2001-01-01), Lin et al.
patent: 6175515 (2001-01-01), Peczalski et al.
patent: 6178074 (2001-01-01), Gill
patent: 6178112 (2001-01-01), Bessho et al.
patent: 6180444 (2001-01-01), Gates et al.
patent: 6185143 (2001-02-01), Perner et al.
patent: 6188549 (2001-02-01), Wiitala
patent: 6189077 (2001-02-01), Robertson et al.
patent: 6191972 (2001-02-01), Miura et al.
patent: 6195240 (2001-02-01), Gill
patent: 6198610 (2001-03-01), Kawawake et al.
patent: 6205051 (2001-03-01), Brug et al.
patent: 6205052 (2001-03-01), Slaughter et al.
patent: 6205073 (2001-03-01), Naji
patent: 6211090 (2001-04-01), Durlam et al.
patent: 6232777 (2001-05-01), Sato et al.
patent: 6233172 (2001-05-01), Chen et al.
patent: 6249406 (2001-06-01), Gill et al.
patent: 6256247 (2001-07-01), Perner
patent: 6259586 (2001-07-01), Gill
patent: 6269018 (2001-07-01), Monsma et al.
patent: 6269040 (2001-07-01), Reohr et al.
patent: 6272040 (2001-08

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