An LCoS chip is designed to suppress electrical noise due to cross-talk
between electrical components of the chip and stray light entered into
the chip. The LCoS chip includes a silicon substrate having an array of
memory cells formed the substrate. The chip includes a first
polycrystalline silicon layer that forms word lines and a metal layer
that forms bit lines, wherein bit lines are directed orthogonal to the
word lines. The chip also includes capacitor storages formed on second
and third second polycrystalline silicon layers. The second
polycrystalline layer is disposed over the first polycrystalline silicon
layer and over regions of the substrate not covered by the word lines.
The metal layer includes shields to reduce cross-talk between neighboring
bit lines as well as between the bit lines and the capacitor storages. A
third polycrystalline layer is configured to reduce cross-talk between
the bit lines and the word lines.