1. I will presume that you are doing this because your design requires that it be in its own well. Then you are subject to the design rules for well dimensions.
2. You must make sure in your schematic view that you use a 4 port device not a 3 port device. Then you can connect the body to the source. 3. See answer to #2. When you select the transistors from the list you'll notice a small triangle in the selection box. Click, I hate this as a verb, on the triangle and you'll get more options. Jan -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of sudipta Sent: Wednesday, March 10, 2010 9:41 PM To: Electric VLSI Editor Subject: Electric VLSI design system doubt Hi All, I want to connect the body of one PMOS transistor in my design, to its source. The problems I am facing with this are the following, 1.I use the mocmos technology. It places a large well around each transistor....consequently as the wells of other pmos transistors and this particular transistor has to be isolated,it takes up a large area. Is there any way to reduce this area requirement? For example, can the default well area around each transistor be reduced. 2. Even if connect the body of a pmos to its source, while writing the spice deck, it connects the body to power. 3. In my schematic view I get option to use 4 port nmos transistor, but no similar option exists for pmos transistor. Consequently there is an ncc error between the layout and schematic. Thanks, Sudipta -- You received this message because you are subscribed to the Google Groups "Electric VLSI Editor" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/electricvlsi?hl=en. -- You received this message because you are subscribed to the Google Groups "Electric VLSI Editor" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/electricvlsi?hl=en.
