Active solid-state devices (e.g. – transistors – solid-state diode – Field effect device – Having insulated electrode
Patent
1995-06-06
1998-08-25
Fahmy, Wael
Active solid-state devices (e.g., transistors, solid-state diode
Field effect device
Having insulated electrode
257342, 257346, H01L 2976, H01L 2994, H01L 31062
Patent
active
057985502
ABSTRACT:
The present invention involves a vertical type semiconductor device whereby miniaturization and lowered ON resistance of a cell within the device can be achieved without impairing the functioning of the device. The line width of the gate electrode is made smaller to meeting the demand for miniaturization of the cell while the distance between the channel regions which are diffused into the portions below the gate during double diffusion remains virtually equal to that in the device of larger cell size having a low J.sub.FET resistance component. While the width of the gate electrode is set to be smaller, the mask members used during double diffusion are attached to the side walls of the gate electrode, where their width allows the source region to diffuse to the portion under the gate. Accordingly, miniaturization and lowered ON resistance of the cell can be achieved without impairing the functioning of the device.
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Kuroyanagi Akira
Okabe Yoshifumi
Tomatsu Yutaka
Tsuzuki Yasuaki
Yamaoka Masami
Fahmy Wael
Nippondenso Co. Ltd.
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