公开(公告)号：US4577114A

公开(公告)日：1986-03-18

申请号：US611292

申请日：1984-05-17

申请人： Stephen Levy ,  Joseph C. O'Connell ,  William H. Wright, Jr. ,  Maurice Weiner

发明人： Stephen Levy ,  Joseph C. O'Connell ,  William H. Wright, Jr. ,  Maurice Weiner

IPC分类号： H03K17/78 ,  H01J40/14 ,  H01L31/00

CPC分类号： H03K17/78

摘要： High power optically activated switches of the semiconductor type utilizing broadbanded flashlamp as the source of light for rendering the semiconductor conductive and thus close the switch. In order that the conductivity of the semiconductor when in the "on" state be uniform over the load current carrying cross-section thereof, the semiconductor is treated to produce a tapered density of trapping or re-combination centers therein, with the density being a maximum at the semiconductor surface which faces the flashlamp. Several novel configurations of these switches are shown, including reflectors for concentrating the flashlamp output on the semiconductor, and a plurality of semiconductor switches all activated by a single light source, as well as liquid cooled semiconductors.

摘要翻译： 利用宽带闪光灯作为光源的半导体类型的大功率光学激活开关，用于使半导体导通并因此闭合开关。 为了使半导体在“接通”状态下的导电性在其承载横截面的负载电流上是均匀的，则半导体被处理以产生其中的陷阱或再组合中心的锥形密度，其密度为 在面向闪光灯的半导体表面处的最大值。 示出了这些开关的几种新颖结构，包括用于将闪光灯输出集中在半导体上的反射器，以及全部由单个光源激活的多个半导体开关以及液体冷却的半导体。