High electron mobility transistor and manufacturing method thereof
    7.
    发明授权
    High electron mobility transistor and manufacturing method thereof 有权
    高电子迁移率晶体管及其制造方法

    公开(公告)号:US08710551B2

    公开(公告)日:2014-04-29

    申请号:US13597599

    申请日:2012-08-29

    IPC分类号: H01L31/109 H01L31/072

    摘要: The present invention discloses a high electron mobility transistor (HEMT) and a manufacturing method thereof. The HEMT includes a semiconductor layer, a barrier layer on the semiconductor layer, a piezoelectric layer on the barrier layer, a gate on the piezoelectric layer, and a source and a drain at two sides of the gate respectively, wherein each bandgap of the semiconductor layer, the barrier layer, and the piezoelectric layer partially but not entirely overlaps the other two bandgaps. The gate is formed for receiving a gate voltage. A two dimensional electron gas (2DEG) is formed in a portion of a junction between the semiconductor layer and the barrier layer but not below at least a portion of the piezoelectric layer, wherein the 2DEG is electrically connected to the source and the drain.

    摘要翻译: 本发明公开了一种高电子迁移率晶体管(HEMT)及其制造方法。 HEMT包括半导体层,半导体层上的势垒层,阻挡层上的压电层,压电层上的栅极,栅极两侧的源极和漏极,其中半导体的每个带隙 层,阻挡层和压电层部分但不完全与其它两个带隙重叠。 栅极形成为用于接收栅极电压。 二维电子气体(2DEG)形成在半导体层和阻挡层之间的结的一部分中,但不在压电层的至少一部分下方,其中2DEG电连接到源极和漏极。