Skip to main content

SRAM/Memory CAD Engineer at Qualcomm

  Hello Dear Readers, Qualcomm Bangalore currently has a vacancy for an SRAM/Memory CAD Engineer. As a leading technology innovator, Qualcomm pushes the boundaries of what's possible to enable next-generation experiences and drives digital transformation to help create a smarter, connected future for all. As a Qualcomm Hardware Engineer, you will plan, design, optimize, verify, and test electronic systems, bring-up yield, circuits, mechanical systems,  Digital/Analog/RF/optical  systems, equipment and packaging, test systems, FPGA, and/or DSP systems that launch cutting-edge, world class products. Qualcomm Hardware Engineers collaborate with cross-functional teams to develop solutions and meet performance requirements. Minimum Qualifications: • Bachelor's degree in Computer Science, Electrical/Electronics Engineering, Engineering, or related field and 3+ years of Hardware Engineering or related work experience. OR Master's degree in Computer Science, Electrical/Electronic...

Timing Optimization In ASIC Design

 Hello Dear Readers, 

Today in this post I will provide some techniques for timing optimization in ASIC Design.

Timing Optimization Techniques are as follows:

1. Mapping:
Mapping converts primitive logic cells found in a netlist to technology-specific logic gates found in the library on the timing critical paths.

2. Unmapping:
Unmapping converts the technology-specific logic gates in the netlist to primitive logic gates on the timing critical paths.

3. Pin Swapping :
Pin swapping optimization examines the slacks on the inputs of the gates on the worst timing paths and optimizes the timing by swapping nets attached to the input pins, so the net with the least amount of slack is put on the fastest path through the gate without changing the function of the logic.

4. Buffering:
Buffers are inserted in the design to drive a load that is too large for a logic cell to efficiently drive.
If the net is too long then the net is broken and buffers are inserted to improve the transition which will ultimately improve the timing on the data path and reduce the setup violation.
To reduce the hold violations buffers are inserted to add delay on data paths.

5. Cell Sizing:
Cell sizing is the process of assigning a drive strength for a specific cell in the library to a cell instance in the design. If there is a low drive strength cell in the timing critical path then this cell is replaced by a higher drive strength cell to reduce the timing violation.

6. Cloning:
Cell cloning is a method of optimization that decreases a load of a very heavily loaded cell by replicating the cell. Replication is done by connecting an identical cell to the same inputs as the original cell. Cloning clones the cell to divide the fanout load to improve the timing.

7. Logic Restructuring:

Logic restructuring means rearranging logic to meet timing constraints on critical paths of design.

Comments

Popular posts from this blog

Internship - SoC /IP Design at NXP India

Hello Dear Readers, Currently, at NXP India  vacancy for  Internship - SoC /IP Design   role.   We are looking for a Master degree student with Electronics and Communication Engineering, or related field, with an emphasis on SoC design. This is a full-time internship with a duration of about 11-12 months. Job Responsibility: Working with our experienced design team to design state of the art SoC hardware specific segment applications like Automotive, IoT, voice/object recognition, security, smart connectivity and touch sensing . Assisting experienced engineers with End-to-end ownership of SoC Design, Verification and implementation (Physical Design). Design and verify digital and Mixed-signal IPs. Document designs and present results. Job Qualification: Master student in electronic/computer engineering Creative and positive mindset Good knowledge on CMOS technologies Great communication skills, interpersonal skills, teamwork skills and can-do attitude Desire for a ca...

Best Book for Designing Microarchitecture of Microprocessor Using Verilog HDL

  Hello Dear Readers, Currently, after succeeding in many topics now I starting to provide technical book reviews which were I have completed and still read books always. So let us start today's book review. Book Name:   Computer Principles and Design in Verilog  HDL Description:  Uses Verilog HDL to illustrate computer architecture and microprocessor design, allowing readers to readily simulate and adjust the operation of each design, and thus build industrially relevant skills Introduces the computer principles, computer design, and how to use Verilog HDL (Hardware Description Language) to implement the design Provides the skills for designing processor/arithmetic/cpu chips, including the unique application of Verilog HDL material for CPU (central processing unit) implementation Despite the many books on Verilog and computer architecture and microprocessor design, few, if any, use Verilog as a key tool in helping a student to understand these design techniques...

Exploring the Role of LEF Files in VLSI Chip Design: A Beginner's Guide

Hello Dear Readers,   Today in this post, I will provide some deep insight into the LEF file role during the VLSI Chip Design process. In VLSI (Very Large Scale Integration) design, a LEF file is a file that contains information about the physical geometry of the standard cells used in a circuit. LEF stands for Library Exchange Format. A standard cell is a pre-designed logic cell that contains a specific function, such as a flip-flop or an AND gate. Standard cells are designed to be easily combinable and scalable to create more complex circuits. The physical geometry of each standard cell is defined in the LEF file. The LEF file contains information such as the width, height, and position of the pins and metal layers of each standard cell. It also contains information about the physical design rules that govern the placement of these cells on the chip. LEF files are important in VLSI design because they enable the interoperability of different design tools from different vend...