Preferably, the gate electrode is formed only on the side wall of the memory function body or formed such that the upper portion of the memory function body is not covered.
接続され、第5の配線と、第3のゲート電極とは電気的に接続された半導体装置である。
And the fifth wiring and the third gate electrode are electrically connected to each other.
It is preferable that the gate electrode is formed only on the side wall of the memory function body described later or does not cover the upper part of the memory function body.
In 1966, Robert W. Bower realized that if the gate electrode was defined first, it would be possible not only to minimize the parasitic capacitances between gate and source and drain, but it would also make them insensitive to misalignment.
For example, when the gate electrode covers the side surface of the semiconductor layer, the effective channel width may be larger than the apparent channel width, and the influence may not be negligible.
In the p-channel TFT, the gate electrode of a clad structure was similarly formed, and a channel formation region 476, and third impurity regions 477 and 478 were formed.
Further, the current controlling TFT[0407] 4501 according to this Embodiment is constituted in such a manner that a parasitic capacitance called gate capacitance is formed between the gateelectrode 4502 and the LDD region 4509.
およびゲート電極6が形成される。
(6) Gate electrodes are formed.
を介してゲート電極46が設けられている。
And a gate electrode 43 are provided.
とゲート電極43が設けられる。
And a gate electrode 43 are provided.
Xで表されたチャネル長は、ゲート電極22に隣接するPボディ領域16の長さである。
The channel length designated by X is the length of the P body region 16 adjacent to the gate electrode 22.
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