A semiconductor device comprises a substrate including a first region and a second region of a first conductivity type and a third region between the first and second regions of a second conductivity type opposite to the first conductivity type, and being covered by a dielectric layer. During operation, the system sends, from the local endpoint, a single connection-request message to a proxy server, which forks the single connection-request message to a number of remote endpoints. In the example shown, the turbine drives a sun gear, which drives a planet carrier and a ring gear in a differential manner. The allocation middleware interface then sends the single average-priced block to be cleared by a designated clearing agent and allocates the single average-priced block into one or more custodian accounts. One end of a connecting member that connects the first mounting member to the second connecting member connects rotatably to an axis part of the first mounting member, with the opposite end connected rotatably to an axis part of the second mounting member.