Transistor layout for manufacturing process control

US7985990B2 · kind B2 · utility

Assignee

• TEXAS INSTRUMENTS INCORPORATED · US

Inventors

• Ashesh Parikh · Frisco, US
• Anand Seshadri · Plano, US

Key dates

• Filing date: Aug 11, 2009
• Grant date: Jul 26, 2011
• Expiry date: Aug 11, 2029

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10D89/10

Abstract

A symmetrical circuit is disclosed (FIG. 4). The circuit includes a first transistor (220) having a first channel in a substantial shape of a parallelogram (FIG. 5A) with acute angles. The first transistor has a first current path (506) oriented in a first crystal direction (520). A first control gate (362) overlies the first channel. A second transistor (222) is connected to the first transistor and has a second channel in the substantial shape of a parallelogram with acute angles. The second transistor has a second current path (502) oriented parallel to the first current path. A second control gate (360) overlies the second channel.