Electronic Glossary

What is a JFET?   A JFET (Junction Field Effect Transistor) is a three-terminal semiconductor device in which current conduction is by one type of carrier – electrons or holes. The current conduction is controlled by means of an electric …

Just-In-Time (JIT), minimizing inventory by supplying material and components directly to the manufacturing line just before incorporating them into the product.

What’s JLCC Package?   The J-leaded Ceramic Chip Carrier (JLCC) is a square or rectangular surface-mount ceramic package that has J-formed leads around its periphery. The plastic-molded equivalent of the JLCC is the PLCC.   Typical JLCCs have lead counts …

JTAG (named after the Joint Test Action Group which codified it) is an industry standard for verifying designs and testing printed circuit boards after manufacturing and assembly. In 1990, the Institute of Electrical and Electronics Engineers (IEEE) codified the results …

Similar to v-scoring, this is a process that is used when a printed circuit board is pannelized. It allows for a score line to jump over most of the panel border, leaving the border largely intact, and as a result, …

Contact or connection between two or more wires or cables. The area where the p-type material and n-type material meet in a semiconductor. Also see the term P-N Junction.

What is a Junction Diode?   A P-N Junction Diode, or PN Junction Diode is a two-terminal or two-electrode semiconductor diode, in which the rectifying characteristics occur at a junction between the N-type and P-type semiconductor materials. The P-N junction …

Kapton is a polyimide (PI) Kapton, is a polyimide (PI) film developed by Dupont in the late 1960s that remains stable across a wide range of temperature, from -269 to +400 °C. In flexible circuit manufacturing industry, people always treat …

Known Good Board (KFB), A board or assembly that is verified to be free of defects. Also known as a Golden Board.

Metric prefix for 1000.