COMPENSATION ELEMENT FOR DYNAMIC SEMICONDUCTOR STORES,AND METHOD OF OPERATING THE SAME

摘要

The invention relates to a dummy cell for a dynamic semiconductor store, employing an evaluator circuit and connected therewith bit lines and storage elements adapted to be selectively connected therewith. The dummy cell may be selected through a dummy cell selector line and in its selected stage is connected to any bit line which is not busy with the read-out of a storage element. The dummy cell comprises a dummy cell condenser through which any connected bit line receives a correcting voltage raising its potential to a middle potential of UBD= 0.5 (UBO+ UBl). UBO corresponds to the read-out voltage on the bit line during the read-out of a binary "O" and UBl corresponds to the read-out voltage on the bit line during the read-out of a binary "1". This mode of operation increases the read-out sensitivity.