Methods of implementing a static memory cell compliant with the
requirements of phase shift masks. A phase shift compliant memory cell is
generated by implementing a single bit line, two word lines, first and
second cross-coupled logic gates, and first and second pass gates. The
logic gates and pass gates include transistors that use a fabrication
layer (e.g., polysilicon) to implement the gate nodes of the transistors.
All of these gate nodes extend substantially in a first direction.
Throughout the static memory cell, the fabrication layer is implemented
without T-shaped polygons in compliance with the requirements for a phase
shift mask. In some embodiments, the static memory cell is a
configuration memory cell for a PLD, and the method includes implementing
an interconnection between at least one of the first and second storage
nodes and programmable logic elements of the PLD.