Abstract:
PROBLEM TO BE SOLVED: To provide an easy method for forming a compact pad whose manufacturing cost can be reduced. SOLUTION: A region 51 is an area 510 that extends at least up to part of the front surface of the region, and can be locally changed for the purpose of forming the area using a material that can be selectively removed from the region. This region is covered with an insulating material 7, and an orifice 90 that appears on the front surface of the area 510 is formed in the insulating material. The material that can be selectively removed is removed from this area through the orifice so that a cavity 520 may be formed in place of this area. The cavity and the orifice are filled up with at least one conductive material 91. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
A MOS transistor formed in a silicon substrate (101) comprises: (a) an active zone (100) surrounded by an insulating partition (102); (b) a first conducting strip (103) covering a central strip of the active zone; (c) one or more second conducting strips (105, 106, 107) placed in the active zone plumb with the first strip; (d) some conducting regions (108, 109) placed in two cavities in the insulating partition and joined to the ends of the first and second strips; (e) the surfaces of the silicon opposite the strips and conducting regions are covered with an insulator (130) constituting an oxide grid. An independent claim is also included for the production of this MOS transistor.
Abstract:
The unit has a pair of cells (C1, C2) for storing two independent bits and including field effect transistors with grid (4, 14), respectively. A channel is arranged in a source zone (102), and the two transistors are arranged in between the source zone and a drain zone. An electrode of single polarization (24) is arranged between intermediate portions (1, 11) of the two transistors. An independent claim is also included for a method for manufacturing an integrated DRAM on a surface of a substrate.
Abstract:
A MOS transistor formed in a silicon substrate (101) comprises: (a) an active zone (100) surrounded by an insulating partition (102); (b) a first conducting strip (103) covering a central strip of the active zone; (c) one or more second conducting strips (105, 106, 107) placed in the active zone plumb with the first strip; (d) some conducting regions (108, 109) placed in two cavities in the insulating partition and joined to the ends of the first and second strips; (e) the surfaces of the silicon opposite the strips and conducting regions are covered with an insulator (130) constituting an oxide grid. An independent claim is also included for the production of this MOS transistor.