How to draw layout for a PFET with P3HT-channel
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A. METAL1

In the LSW window, choose METAL1 (drw). From the Layout window, choose

Create->Shape->Rectangle

1. Draw the source/drain electrodes. Assume we are going to draw a PTFT with W/L = 500um/50um, with a source/drain electrode width of 10um. Draw a rectangle of 500um x 10um, and draw another one under the first rectangle, with 50um distance in between.

2. Draw the source/drain connections to other nets. On the right side of the drawn electrodes, draw two rectangles in METAL1, each being 100um x 200um.

3. Draw the gate electrode. On the left side of the drawn electrodes, draw a rectangle of 200um x 100um in METAL1, with 100um distance away from the source/drain electrodes.

The final pattern should look like this:

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B. P3HT Channel

Select P3HT_TFT (drw) from LSW window, and draw a rectangle of 500um x 120um, covering the entire two source/drain electrodes and filling the entire 50um gap to form a channel.

C. Ion-Gel Dielectric

Select IONGEL_TFT (drw) from LSW window, and draw a rectangle of 700um x 120um, completely enclosing the P3HT channel, with 25um extension on the length direction and 50um extension on the width side onto METAL1.

D. PEDOT Conductive Layer

Select PEDOT_TFT (drw) from LSW window, and draw a rectangle of 675um x 25um, placed roughly in the middle of the channel. Locate the rectangle so that it extends onto METAL1 over Iongel layer on the gate side by 50um. Iongel layer should also enclose this PEDOT layer by 25um on the right side.

E. Contact

For LVS purpose, dummy contacts are required in layout. Select COTFT (drw) from LSW window and draw rectangles at source (P3HT overlapping METAL1) and drain (P3HT overlapping METAL1). Select CONTACT (drw) from LSW window for rectangles at gate (PEDOT overlapping METAL1 but not interacting with IONGEL).

F. Substrate

For LVS purpose, substrate layer is required in layout. Select SUB (drw) from LSW window and draw a rectangle to enclose everything.

The final layout should be like this:

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