A股半导体板块多数高开，士兰微竞价涨停

Core Viewpoint - The A-share semiconductor sector experienced a strong opening on October 20, with several companies showing significant gains, indicating positive market sentiment in this industry [2] Company Performance - Silan Microelectronics reached its price limit, indicating a strong demand and investor confidence [2] - Yuanjie Technology saw an increase of over 8%, reflecting positive market reactions [2] - Other companies such as Baiwei Storage and Changguang Huaxin also experienced upward movement, contributing to the overall positive trend in the semiconductor sector [2]