Entries by Erick Castellon

Expert’s Netlist Driven Layout

Expert features a powerful Netlist Driven Layout (NDL) function to assist the user in creating a layout. It increases the productivity of layout design by automating cell generation and providing visual cues to assist in the wiring process. In this example, a latch circuit layout will be built based on developed child cells.

Expert Parametric Wires

Expert Parametric Wire (Pwire) is a complex group of objects containing, a single wire named master wire, any number of subparts such as enclosure wires, offset wires and sets of rectangles. Pwire objects enable extremely quick and efficient creation and editing of guard rings and shielded paths which are increasingly important due to higher integration density of IC designs.

Simulating the Device Characteristics of MEH-PPV Polymer Light Emitting Diodes Using Atlas

Organic light emitting diodes (OLEDs) are attracting great interest in the display technology industry due to their promising low cost large area manufacturing and relative ease of fabrication using low processing temperatures. Although the research work of OLEDs has began since early 1980 and has been well established, there is still no commercially available software that can simulate the electrical and optical behavior of these organic polymer/monomer based devices. As such, Silvaco-ATLAS has recently extended its capability to simulate these devices using a variety of appropriate organic polymer/monomer models.

Expert: Wiring

The wiring tool in Expert automatically creates the shortest wire connecting two points specified by the user. The created wire goes around any existing layout objects. It may lie in multiple layers (multi-wire) if the source and target points are on different layers or if the wire is shorter than the alternative single-layer wire case.

New Parasitic Capacitance Modeling in Hipex-C

In deep submicron technology, conduction layers have widths much smaller than their thicknesses (see Figure 1). This makes edge parasitic capacitance effects more dominant than plate capacitance.

In a multi-body system, neighboring conductors may capture some or all of the electrical fields lines emanating from a particular conductor. These field lines would otherwise terminate else where. This phenomenon is called charge sharing, which plays an important role in modeling parasitic capacitances.

Capacitance Coupling Calculation of IPS mode TFT-LCD Using Clever

The increasing demand of the TFT-LCD industry has lead to a rapid growth in display size and resolution. The higher cell packing density results in a narrowing viewing angle and image degradation due to electrical coupling between the data bus lines and display electrodes. This “crosstalk” therefore becomes a serious limitation. The in-plane switching(IPS) mode has been used as an excellent technology solution for realizing extremely wide viewing angles.