Custom Layout

6
Dec
2023

OCV, AOCV, and POCV

OCV, AOCV, and POCV Fig1: Derate Factor on Setup Analysis          Fig2: Derate Factor on Hold Analysis Issues in OCV:   Advance On-Chip Variation (AOCV):                  Fig3: Bounding box for cell and net distance Distance: If the distance increases, systematic variation will increase, and to mitigate the variation, we need to use a higher derate value. So along with the

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27
Oct
2023

Optical Proximity Correction (OPC)

Introduction Optical Proximity Correction OPC is a resolution enhancement technique based on optical lithography. It is used in sub-wavelength lithography to deal with the severe image distortions. These image distortions typically include the: increased corner rounding, line-end shortening and changes in the width when located in isolated or dense environments. This technique helps in improving the imaging resolution. It is

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11
Sep
2023

Layout Blog: Standard Cells

Layout Blog: Standard Cells Multiple Architectures Standard-cell library offers multiple architecture for best optimisation in performance, power, and area requirements of Digital designs. High Performance Architecture, a High-Density Architecture for varied customer application requirements. In each requirement (power/performance/area), layout approaches will be different to meet the design specifications. Here, we will covering in more common guidelines. Standard Cell Templates: Based

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16
Oct
2017

Standard Cell Library

Standard cells are designed based on power, area and performance. First step is cell architecture. Cell architecture is all about deciding cell height based on pitch & library requirements. We have to first decide the track, pitch, β ratio, possible PMOS width and NMOS width.