What is UL? Underwriters Laboratories, Inc., an independent product safety testing and certification organization. Read More
What is a Twist? A twist is the laminate defect in which deviation from planarity results in a twisted arc. Read More
What is a Traveler? A traveler is the list of instructions describing the board, including any specific processing requirements. Also called a shop traveler, routing sheet, job order, or production order. Read More
What is the Top Side The top side is the side of the circuit board on which most of the components will be located. Read More
What are Tooling Holes? Tooling holes are the general term for holes placed on a PCB or a panel of PCBs for registration and hold-down purposes during the manufacturing process. Also known as Fabrication Hole, Pilot Hole, Read More
What is a Thief? A thief is an extra cathode placed as to divert to itself some of the current from portions of the board which otherwise would receive too high a current density. Read More
What is Thickness? MCL’s standard base thickness is 0.062”. We also offer 0.031″, 0.094″, and 0.126″. MCL’s tolerance is within 10% of the given measurement. Read More
What is TG? Glass transition temperature. The point at which rising temperatures cause the solid base laminate to start to exhibit soft, plastic-like symptoms. This is expressed in degrees Celsius (°C). Read More
