Controlled Impedance
We Help Designers Plan Right!
We route your single-ended and differential pair traces
We place your components, vias, coupling capacitors
We adjust the length matching to achieve propagation delay
We calculate the effective dielectric constant
We can deliver -/+ 5% impedance tolerance
We know how to manufacture the quality you need
Factors that influence impedance PCB tolerances include materials' resin content and tolerance, and trace height and width at the top and bottom of the board. When you give Sierra your set of patterns - copper patterns, hole patterns and ink patterns - we combine them into a single circuit board. We manufacture your PCB with the right pattern sizes and positions within certain tolerances. It is essential you make sure that your manufacturer can provide you the right size, position, and tolerance so your board won't be useless.
We have all tools you need to design for Controlled Impedance
We offer the Stackup Planner, Impedance Calculator, and the Materials Selector to help you reach your impedance goals.
An accurate and detailed HDI PCB stack-up at the beginning stages of a layout reduces unnecessary iterations and helps optimize the costs by increasing manufacturability and electrical performance for a given design.signal layer. The impedance calculator will help you determine how to meet your desired impedance and trace/space values on any signal layer.
