| 摘要 |
PURPOSE:To alleviate an unstable operation of a sense amplifier due to a contact resistance by forming an insulating film to be exposed at an adjacent element region to one region of a wiring to be superposed with an element region with a common contact hole, and providing an electrode for electrically connecting a wiring to the element region through the contact hole. CONSTITUTION:A first contact 37, a second contact 38 having a mark 'x' are opened as one canon contact so as to expose a drain region adjacent to part of a bit line to be superposed with the drain region. A first electrode 32, a second electrode 33 are provided through the common contact. The exposed region of the line is brought into contact with a diffused region via the electrodes 32, 33. A third contact hole 39, a fourth contact hole 40 are provided. Accordingly, an N-type polysilicon 29 of a lower layer can be brought into ohmic contact with a P<+> type diffused region without direct contact, a contact resistance and a wiring resistance are connected in parallel, thereby reducing the contact resistance. |
