Printed circuit board

High school (ages 12+)
Science & Technology

Name:

Date:

Step 1 · Read the article

Open the article and read it at the level above. Then answer the questions below in your own words.

https://smallwhale.org/articles/printed-circuit-board

Write what each word means, using the article.

Do not copy the article. Write two things you learned, the way you would explain them to a friend.

Answers below are taken from the article’s stored facts, so they match what the student read.

1. What is the substrate materials?Includes FR-4, Rogers materials, and polyimide for diverse applications
2. What is the key manufacturing processes?Photolithography, etching, lamination, drilling, plating, and automated soldering
3. How do printed circuit boards help my phone or computer work?The board has special tracks that act like roads for electricity, so the parts can talk to each other. This lets the phone or computer do everything from playing music to showing pictures.
4. Why do printed circuit boards have tiny roads and holes?The tiny roads, called traces, carry electricity, and the holes, called vias, let the electricity jump between different layers of the board. They keep the signals clear and help the board stay cool.

High-Density Interconnect (HDI): PCB technology allowing for more connections in a smaller area using micro-vias.
Signal Integrity: The quality of an electrical signal as it travels through a circuit, crucial for reliable data transmission.
Dielectric Constant: See the article.