PEC

Printed Electronic Component (PEC) or Printed Electronics is a set of printing methods used to create electrical devices on various substrates. Printing typically uses common printing equipment suitable for defining patterns on material, such as screen printing, flexography, gravure, offset …
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Peel Strength

Peel Strength is a measure of the bond strength between the copper conductor and the dielectric material. It is expressed in pounds of force per linear inch (PLI, or average load per conductor width) required to separate bonded materials where …
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Peelable Solder Mask

Peelable Solder Mask, also called Strippable Mask or Blue Mask, which is totally different from LPI Solder Mask. but it is important in PCB manufacturing and PCB assembly. Why screen printing peelable mask on printed circuit board (PCB)? It’s mainly …
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Period

What’s a Wave Period?   A Wave Period is the time to complete one full cycle of a periodic or repeating wave form. For a wave pattern, like sound wave and microwave, it has crest or peak, which is the …
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PFMEA

A copy of the Process Failure Mode and Effect Analysis (PFMEA, or Process FMEA), reviewed and signed off by supplier and customer. In full and partial turnkey PCB assembly, the PFMEA follows the process flow steps, and indicates “what could …
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PGA

Pin Grid Array (PGA) is an IC package with a large number of connections which are made by through-hole pins arranged in a grid pattern on the bottom of the package. Precursor of the Ball Grid Array.
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Phase

Angular relationship between two waves.
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Phase Angle

What’s a Phase Angle?   A Phase Angle describes the phase shift that exists between total voltage and total electric current. Furthermore, in the voltage triangle, this matches the phase shift that is present between active voltage and total voltage. …
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Phase Shift

What’s Phase Shift?   Phase Shift is the change in phase of a waveform between two points, expressed as degrees of lead or lag. Things start to get complicated when we need to relate two or more AC voltages or …
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Phase Shift Oscillator

An oscillator that uses three RC networks in its feedback path to produce the 180° phase shift required for oscillation.
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