To control the impedance of high-speed signal interconnects, one first needs to predict the impedance of a specific multilayer stackup configuration. A precision field solver is arguably the most accurate way to calculate the single-ended, edge-coupled, and broadside-coupled differential impedance. Once the board is fabricated, the transmission lines need to be physically measured to determine the actual impedance to qualify the board.

The most common method for measuring PCB trace impedance is to use a time-domain reflectometer (TDR). This measures the impedance in the time domain. However, a far more accurate method is to use a vector network analyzer (VNA), which operates in the frequency domain... More >

If you’re looking for a career in the PCB industry—design, fabrication, or assembly—the I-Connect007 Career Opportunities section, jobConnect007.com is the first place you should look.

In the pages of I-Connect007’s monthly magazines and newsletters, there are job openings for positions that span the entire circuit board supply chain: senior PCB designer, laser drilling and direct imaging service engineer, development chemist, SMT field technician, IPC master instructor, and sales representative, just to name a few.

Once you find a position that’s a perfect fit, you can submit your resume directly to the hiring manager simply by clicking on the ad... More >

It has been a busy week! In case you missed them, here are the five top items of the week collected from all of I-Connect007’s various news sources and publications, including Design007, PCB007, SMT007, The Daily Newsletter, and our weekly newsletters for SMT007, Design007, and Milaero007.

Ambarella Adopts Cadence Clarity 3D Solver for AI Vision Processor Development
Cadence Design Systems Inc. announced that Ambarella Inc... More >