A 19nm 112.8mm2 64Gb multi-level flash memory with 400Mb/s/pin 1.8V Toggle Mode interface

NAND flash memory is widely used in digital cameras, USB devices, cell phones, camcorders and solid-state drives. Continuous lowering of bit cost, increasing flash-memory-die densities and improving performance have helped to expand flash markets. Recently, there are two different directions to meet market demands. One is lowering bit cost and increase memory density to the utmost limit, which is achieved by 4b/cell [1] or 3b/cell [2]. The other is focusing on high performance and high reliability. To meet both demands, we develop a 19nm 112.8mm2 64Gb 2b/cell NAND flash memory with the smallest die size ever reported. 15MB/s programming throughput and 400Mb/s/pin 1.8V Toggle Mode interface [3] are achieved for the first time. Die Micrograph and features are shown in Figure 25.1.1.

Hong Ding | Manabu Sato | Takeshi Ogawa | Mitsumasa Koyanagi | Masaki Nakagawa | Hiroaki Nasu | Toshihiro Suzuki | Tomohiro Kobayashi | Teruhiko Kamei | Yuya Suzuki | Naoki Kobayashi | Satoshi Inoue | Takahiro Shimizu | Noboru Shibata | Kazushige Kanda | J. Nakai | M. Miakashi | Toshifumi Hashimoto | Junji Musha | Takahiro Sugimoto | Masatsugu Kojima | Yasuyuki Kajitani | Yuuki Matsumoto | Toshiki Hisada | D. He | Gertjan Hemink | Mitsuhiro Noguchi | Naoaki Kanagawa | Naofumi Abiko | Tomofumi Fujimura | Katsuaki Isobe | Takuya Ariki | Hardwell Chibvongodze | Mitsuyuki Watanabe | Yosuke Kato | Naoki Ookuma | Tuan Pham | G. Liang | Masaaki Higashitani | Cuong Trinh | Yoshinao Suzuki | Farookh Moogat | Kiyoaki Iwasa | Mitsuaki Honma | Shintaro Sakai | Kousuke Kanazawa | Kazumi Ino | Masahiro Yoshihara | Ryuji Yamashita | Shingo Zaitsu | Yuko Utsunomiya | Yui Shimizu | K. Inuzuka | M. Inagaki | Yasuhiko Honda | M. Koyanagi | Yuya Suzuki | M. Nakagawa | M. Higashitani | K. Isobe | M. Noguchi | G. Hemink | S. Inoue | Takuya Ariki | Y. Shimizu | Ryuji Yamashita | Yasuhiko Honda | Tomofumi Fujimura | Masahiro Yoshihara | Tomohiro Kobayashi | N. Shibata | Manabu Sato | Junji Musha | K. Kanda | Takahiro Sugimoto | Takahiro Shimizu | M. Kojima | Takeshi Ogawa | Yuuki Matsumoto | J. Nakai | H. Nasu | N. Kobayashi | M. Miakashi | H. Chibvongodze | Mitsuyuki Watanabe | Yosuke Kato | Naoki Ookuma | Naoaki Kanagawa | D. He | M. Honma | Yoshinao Suzuki | T. Kamei | Cuong Trinh | F. Moogat | K. Iwasa | S. Sakai | T. Pham | K. Kanazawa | N. Abiko | Hong Ding | Toshihiro Suzuki | G. Liang | K. Inuzuka | Yasuyuki Kajitani | Toshiki Hisada | Yuko Utsunomiya | Toshifumi Hashimoto | M. Inagaki | K. Ino | S. Zaitsu

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