公开(公告)号：US20160372606A1

公开(公告)日：2016-12-22

申请号：US15182812

申请日：2016-06-15

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Daigo ITO ,  Daisuke MATSUBAYASHI ,  Masaharu NAGAI ,  Yoshiaki YAMAMOTO ,  Takashi HAMADA ,  Yutaka OKAZAKI ,  Shinya SASAGAWA ,  Motomu KURATA ,  Naoto YAMADE

IPC: H01L29/786 ,  H01L27/12 ,  H01L21/425 ,  H01L21/46 ,  H01L29/04 ,  H01L29/66

CPC classification number: H01L29/78693 ,  H01L21/425 ,  H01L21/46 ,  H01L27/1207 ,  H01L27/1225 ,  H01L27/1262 ,  H01L29/24 ,  H01L29/42384 ,  H01L29/4908 ,  H01L29/66969 ,  H01L29/7782 ,  H01L29/7854 ,  H01L29/7855 ,  H01L29/78618 ,  H01L29/78648 ,  H01L29/7869 ,  H01L29/78696

Abstract: A semiconductor device includes a first insulating layer over a substrate, a first metal oxide layer over the first insulating layer, an oxide semiconductor layer over the first metal oxide layer, a second metal oxide layer over the oxide semiconductor layer, a gate insulating layer over the second metal oxide layer, a second insulating layer over the second metal oxide layer, and a gate electrode layer over the gate insulating layer. The gate insulating layer includes a region in contact with a side surface of the gate electrode layer. The second insulating layer includes a region in contact with the gate insulating layer. The oxide semiconductor layer includes first to third regions. The first region includes a region overlapping with the gate electrode layer. The second region, which is between the first and third regions, includes a region overlapping with the gate insulating layer or the second insulating layer. The second and third regions each include a region containing an element N (N is phosphorus, argon, or xenon).

Abstract translation: 一种半导体器件包括：衬底上的第一绝缘层，第一绝缘层上的第一金属氧化物层，第一金属氧化物层上的氧化物半导体层，氧化物半导体层上的第二金属氧化物层， 第二金属氧化物层，第二金属氧化物层上的第二绝缘层，以及栅极绝缘层上的栅电极层。 栅极绝缘层包括与栅电极层的侧表面接触的区域。 第二绝缘层包括与栅极绝缘层接触的区域。 氧化物半导体层包括第一至第三区域。 第一区域包括与栅电极层重叠的区域。 位于第一和第三区域之间的第二区域包括与栅极绝缘层或第二绝缘层重叠的区域。 第二和第三区域各自包括含有元素N（N是磷，氩或氙）的区域。

公开(公告)号：US20160111547A1

公开(公告)日：2016-04-21

申请号：US14883971

申请日：2015-10-15

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Shunpei YAMAZAKI ,  Akihisa SHIMOMURA ,  Yasumasa YAMANE ,  Naoto YAMADE ,  Tetsuhiro TANAKA

IPC: H01L29/786 ,  H01L29/66

CPC classification number: H01L29/7869 ,  H01L27/1225 ,  H01L29/41733 ,  H01L29/45 ,  H01L29/4908 ,  H01L29/66969 ,  H01L29/78606 ,  H01L29/78618 ,  H01L29/78648 ,  H01L29/78696

Abstract: A transistor with stable electrical characteristics or a transistor with normally-off electrical characteristics. The transistor is a semiconductor device including a conductor, a semiconductor, a first insulator, and a second insulator. The semiconductor is over the first insulator. The conductor is over the semiconductor. The second insulator is between the conductor and the semiconductor. The first insulator includes fluorine and hydrogen. The fluorine concentration of the first insulator is higher than the hydrogen concentration of the first insulator.

Abstract translation: 具有稳定电特性的晶体管或具有常关电特性的晶体管。 晶体管是包括导体，半导体，第一绝缘体和第二绝缘体的半导体器件。 半导体在第一绝缘体之上。 导体在半导体上。 第二绝缘体在导体和半导体之间。 第一绝缘体包括氟和氢。 第一绝缘体的氟浓度高于第一绝缘体的氢浓度。

公开(公告)号：US20130137255A1

公开(公告)日：2013-05-30

申请号：US13681888

申请日：2012-11-20

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Naoto YAMADE ,  Junichi KOEZUKA ,  Miki SUZUKI ,  Yuichi SATO

IPC: H01L21/265

CPC classification number: H01L29/66969 ,  H01L21/265 ,  H01L27/1225 ,  H01L29/66742 ,  H01L29/78603 ,  H01L29/7869

Abstract: To provide a semiconductor device including an oxide semiconductor which is capable of having stable electric characteristics and achieving high reliability, by a dehydration or dehydrogenation treatment performed on a base insulating layer provided in contact with an oxide semiconductor layer, the water and hydrogen contents of the base insulating layer can be decreased, and by an oxygen doping treatment subsequently performed, oxygen which can be eliminated together with the water and hydrogen is supplied to the base insulating layer. By formation of the oxide semiconductor layer in contact with the base insulating layer whose water and hydrogen contents are decreased and whose oxygen content is increased, oxygen can be supplied to the oxide semiconductor layer while entry of the water and hydrogen into the oxide semiconductor layer is suppressed.