Patent attributes
Semiconductor devices are provided. A memory cell includes a first pull-down transistor, a second pull-down transistor, a first pass-gate transistor, and a second pass-gate transistor formed over a P-type well region, and a first pull-up transistor, a second pull-up transistor, a first isolation transistor, and a second isolation transistor formed over an N-type well region. The first and second pull-down transistors and the first and second pass-gate transistors share a first active region. The first and second pull-up transistors and the first and second isolation transistors share a second active region. The gates of the first and second isolation transistors are electrically connected to a VDD line. The gates of the first and second pass-gate transistors are electrically connected to a WL landing pad. The sources of the first and second pass-gate transistors are electrically connected to the first bit line and the second bit line, respectively.