Mirror driving mechanism and optical module

    公开(公告)号:US11609423B2

    公开(公告)日:2023-03-21

    申请号:US16627883

    申请日:2019-03-19

    摘要: A mirror driving mechanism includes a plate-shaped base portion, a mirror that is installed at the base portion, and a temperature detecting section that is installed at the base portion and that detects a temperature of the base portion. The base portion includes a thin portion that is disposed away from an outer edge of the base portion and that has a through hole extending through the base portion in a plate-thickness direction of the base portion, a thick portion that is connected to the thin portion, that is thicker than the thin portion in the plate-thickness direction of the base portion, and that extends along the outer edge so as to surround the thin portion, and a first shaft portion extends into the through hole from an outer periphery of the through hole.

    GROUP III NITRIDE SEMICONDUCTOR DEVICE, AND METHOD FOR FABRICATING GROUP III NITRIDE SEMICONDUCTOR DEVICE
    4.
    发明申请
    GROUP III NITRIDE SEMICONDUCTOR DEVICE, AND METHOD FOR FABRICATING GROUP III NITRIDE SEMICONDUCTOR DEVICE 有权
    III族氮化物半导体器件,以及制造III族氮化物半导体器件的方法

    公开(公告)号:US20150115312A1

    公开(公告)日:2015-04-30

    申请号:US14521124

    申请日:2014-10-22

    IPC分类号: H01L33/00 H01L33/32

    摘要: In a group III nitride semiconductor device according to one aspect of the present invention, in a p-type group III nitride semiconductor region formed on a semi-polar plane substrate, the concentration of hydrogen (H) contained in the p-type group III nitride semiconductor region is 25% or less of the concentration of a p-type dopant therein, and the concentration of oxygen contained in the p-type group III nitride semiconductor region is 5×1017 atoms/cm3 or lower, and an angle between a normal axis of a primary surface of the semi-polar plane substrate and a c-axis of the semi-polar plane substrate is not lower than 45 degrees and not higher than 80 degrees or not lower than 100 degrees and not higher than 135 degrees in a waveguide axis direction of the group III nitride semiconductor device.

    摘要翻译: 在根据本发明的一个方面的III族氮化物半导体器件中,在形成在半极性平面衬底上的p型III族氮化物半导体区域中,p型III族中所含的氢(H)浓度 氮化物半导体区域的p型掺杂剂的浓度为25%以下,p型III族氮化物半导体区域中所含的氧浓度为5×10 17原子/ cm 3以下, 半极性平面基板的主表面的法线轴和半极性平面基板的c轴不小于45度且不高于80度或不低于100度并且不高于135度 III族氮化物半导体器件的波导轴方向。

    OPTICAL MODULE
    7.
    发明申请

    公开(公告)号:US20180010763A1

    公开(公告)日:2018-01-11

    申请号:US15644293

    申请日:2017-07-07

    IPC分类号: F21V3/02 F21V15/01 F21V17/10

    摘要: An optical module includes a transmitting member. The transmitting member is fixed to a cap member so as to cover a through-hole. On the assumption that the height of one point on a first surface in a state in which the transmitting member is detached from the cap member is zero and the direction toward the outside of the optical module is a positive direction, the amount of warp that is a difference between the displacement at the central point and the displacement at a standard point, on the first surface, corresponding to a reference point, on the projection image, away from a center of gravity by a particular distance is different between a first geodesic line and a second geodesic line, the displacement being a height of the one point in a direction of the optical axis in a state in which the transmitting member is fixed to the cap member. The transmitting member is joined to the cap member at the first surface or the second surface.

    Semiconductor device
    9.
    发明授权
    Semiconductor device 有权
    半导体器件

    公开(公告)号:US09281427B2

    公开(公告)日:2016-03-08

    申请号:US14745681

    申请日:2015-06-22

    摘要: An infrared photodiode that is a semiconductor device includes a substrate, a buffer layer formed of GaSb, and an absorption layer including a multiple quantum well structure. The multiple quantum well structure includes a stack of unit structures each including a plurality of component layers. Each unit structure includes a first component layer formed of InAs1-aSba where the ratio a is 0 or more and 0.05 or less, a second component layer formed of GaSb, and a third component layer formed of InSbxAs1-x where the ratio x is more than 0 and less than 1. The third component layer is disposed so as to be in contact with one main surface of the second component layer. The other main surface of the second component layer is in contact with the first component layer within the unit structure. The third component layer has a thickness of 0.1 nm or more and 0.9 nm or less.

    摘要翻译: 作为半导体器件的红外光电二极管包括衬底,由GaSb形成的缓冲层和包括多量子阱结构的吸收层。 多量子阱结构包括每个包括多个部件层的单元结构的堆叠。 每个单位结构包括由InAs1-aSba形成的第一组分层,其中a为0以上且0.05以下,由GaSb形成的第2成分层和由In x Sb x As 1-x形成的第3成分层, 大于0且小于1.第三组分层设置成与第二组分层的一个主表面接触。 第二组分层的另一个主表面与单元结构内的第一组分层接触。 第三成分层的厚度为0.1nm以上且0.9nm以下。

    Optical module
    10.
    发明授权

    公开(公告)号:US10024516B2

    公开(公告)日:2018-07-17

    申请号:US15644293

    申请日:2017-07-07

    摘要: An optical module includes a transmitting member. The transmitting member is fixed to a cap member so as to cover a through-hole. On the assumption that the height of one point on a first surface in a state in which the transmitting member is detached from the cap member is zero and the direction toward the outside of the optical module is a positive direction, the amount of warp that is a difference between the displacement at the central point and the displacement at a standard point, on the first surface, corresponding to a reference point, on the projection image, away from a center of gravity by a particular distance is different between a first geodesic line and a second geodesic line, the displacement being a height of the one point in a direction of the optical axis in a state in which the transmitting member is fixed to the cap member. The transmitting member is joined to the cap member at the first surface or the second surface.