HIGH-DENSITY INTERCONNECT · FROM DESIGN TO FABRICATIONPractical guidance for PCB designers
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HDI fundamentals

Understand where high-density interconnect earns its place, and which construction decisions come first.

46 guides
HDI fundamentals

What is an HDI PCB?

An HDI PCB uses compact interconnect features to increase routing density. The useful question is whether those features solve a real escape, size or signal-path constraint.

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HDI fundamentals

HDI vs standard PCB: making the choice

Choose HDI when the additional interconnect freedom resolves a measured limitation. A conventional multilayer PCB can remain the better construction when routing space is sufficient.

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HDI fundamentals

HDI Type I, II and III explained

IPC construction types and 1+N+1 notation describe different aspects of a board. Do not read Type II as an automatic synonym for 2+N+2.

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HDI fundamentals

When does a design need HDI?

A blocked BGA escape, a fixed outline or an unacceptable interconnect stub can justify HDI. A small package pitch is a useful warning, not a complete decision rule.

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HDI fundamentals

HDI PCB benefits and tradeoffs

HDI can improve usable routing area and shorten interconnects, while increasing process complexity and the need for construction-specific validation.

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HDI fundamentals

HDI vs ultra HDI

Ultra HDI describes a move toward substantially finer interconnect geometries and more demanding fabrication control. Supplier definitions and production windows need to be compared explicitly.

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HDI fundamentals

HDI terminology: a drawing checklist

A useful HDI vocabulary connects each term to a drawing feature: build-up, core, microvia, blind via, buried via, target land and capture land.

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HDI fundamentals

The HDI project workflow

Begin with an escape study, agree a manufacturable stackup, encode the rules, then complete layout and release verification.

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HDI fundamentals

DIY Walkie Talkie: A Complete Step-by-Step Guide

DIY Walkie Talkie: A Complete Step-by-Step Guide: reference information, design-review checkpoints and related hdi fundamentals resources.

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HDI fundamentals

Why are Motherboards Green: The Secret Behind PCB Colors

Why are Motherboards Green: The Secret Behind PCB Colors: reference information, design-review checkpoints and related hdi fundamentals resources.

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HDI fundamentals

Flexible PCB – What Kind of Characteristics Make it so Popular

Flexible PCB – What Kind of Characteristics Make it so Popular: reference information, design-review checkpoints and related hdi fundamentals resources.

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HDI fundamentals

PCB Prototype: What Is It and Why You Need One

PCB Prototype: What Is It and Why You Need One: reference information, design-review checkpoints and related hdi fundamentals resources.

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HDI fundamentals

Electronic Prototype Boards

Electronic Prototype Boards: reference information, design-review checkpoints and related hdi fundamentals resources.

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HDI fundamentals

10 Ways to Make a Prototype for Your Exact Needs – PCB Maker Tells You

10 Ways to Make a Prototype for Your Exact Needs – PCB Maker Tells You: reference information, design-review checkpoints and related hdi fundamentals resources.

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HDI fundamentals

About 8 Matters PCB Prototyping You Need To Pay Attention

About 8 Matters PCB Prototyping You Need To Pay Attention: reference information, design-review checkpoints and related hdi fundamentals resources.

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HDI fundamentals

MMBT3904: NPN Switching Transistor

MMBT3904: NPN Switching Transistor: reference information, design-review checkpoints and related hdi fundamentals resources.

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HDI fundamentals

How Dirty PCB Can Affect System Performance

How Dirty PCB Can Affect System Performance: reference information, design-review checkpoints and related hdi fundamentals resources.

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HDI fundamentals

DS1307 Pinout: An in-depth Guide to the Real-Time Clock IC

DS1307 Pinout: An in-depth Guide to the Real-Time Clock IC: reference information, design-review checkpoints and related hdi fundamentals resources.

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HDI fundamentals

IMS pool PCB forms the basis of the “vlak” ambient light.

IMS pool PCB forms the basis of the “vlak” ambient light: reference information, design-review checkpoints and related hdi fundamentals resources.

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HDI fundamentals

Application paper – Intelligent Power Switch for Raspberry Pi

Application paper – Intelligent Power Switch for Raspberry Pi: reference information, design-review checkpoints and related hdi fundamentals resources.

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HDI fundamentals

What is HAL lead-free?

What is HAL lead-free: reference information, design-review checkpoints and related hdi fundamentals resources.

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HDI fundamentals

What does the MCU board do?

What does the MCU board do: reference information, design-review checkpoints and related hdi fundamentals resources.

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HDI fundamentals

Printed Circuit Board Prototype

Printed Circuit Board Prototype: reference information, design-review checkpoints and related hdi fundamentals resources.

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HDI fundamentals

PCB proto Service Default Values.

PCB proto Service Default Values: reference information, design-review checkpoints and related hdi fundamentals resources.

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HDI fundamentals

The PCB’s in our Robots

The PCB’s in our Robots: reference information, design-review checkpoints and related hdi fundamentals resources.

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HDI fundamentals

Temperature difference between external sensor and furnace sensor.

Temperature difference between external sensor and furnace sensor: reference information, design-review checkpoints and related hdi fundamentals resources.

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HDI fundamentals

RF pool – insights and details

RF pool – insights and details: reference information, design-review checkpoints and related hdi fundamentals resources.

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HDI fundamentals

How to do PCB Legend Print

How to do PCB Legend Print: reference information, design-review checkpoints and related hdi fundamentals resources.

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HDI fundamentals

What is the function of Pre-heater

What is the function of Pre-heater: reference information, design-review checkpoints and related hdi fundamentals resources.

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HDI fundamentals

What is the difference between a countersink and a counterbore in a PCB

What is the difference between a countersink and a counterbore in a PCB: reference information, design-review checkpoints and related hdi fundamentals resources.

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HDI fundamentals

PCB Panelization at Screaming Circuits

PCB Panelization at Screaming Circuits: reference information, design-review checkpoints and related hdi fundamentals resources.

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HDI fundamentals

Software to panelize PCB

Software to panelize PCB: reference information, design-review checkpoints and related hdi fundamentals resources.

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HDI fundamentals

What Is LED PCB

What Is LED PCB: reference information, design-review checkpoints and related hdi fundamentals resources.

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HDI fundamentals

HDI PCB Industries and Applications

HDI PCB Industries and Applications: reference information, design-review checkpoints and related hdi fundamentals resources.

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HDI fundamentals

How long does it take to get a PCB made?

How long does it take to get a PCB made: reference information, design-review checkpoints and related hdi fundamentals resources.

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HDI fundamentals

Can you make money recycling circuit boards?

Can you make money recycling circuit boards: reference information, design-review checkpoints and related hdi fundamentals resources.

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HDI fundamentals

What is the cheapest way to make a PCB?

What is the cheapest way to make a PCB: reference information, design-review checkpoints and related hdi fundamentals resources.

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HDI fundamentals

Why is PCB so expensive?

Why is PCB so expensive: reference information, design-review checkpoints and related hdi fundamentals resources.

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HDI fundamentals

What is the difference between motherboard and printed circuit board?

What is the difference between motherboard and printed circuit board: reference information, design-review checkpoints and related hdi fundamentals resources.

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HDI fundamentals

What is a Printed Circuit Board?

What is a Printed Circuit Board: reference information, design-review checkpoints and related hdi fundamentals resources.

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HDI fundamentals

What are the 4 types of PCB?

What are the 4 types of PCB: reference information, design-review checkpoints and related hdi fundamentals resources.

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HDI fundamentals

Building Non-Conventional HDI Boards

Building Non-Conventional HDI Boards: reference information, design-review checkpoints and related hdi fundamentals resources.

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HDI fundamentals

The Top 3D Printed Circuit Board Companies Revolutionizing Electronics

The Top 3D Printed Circuit Board Companies Revolutionizing Electronics: reference information, design-review checkpoints and related hdi fundamentals resources.

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HDI fundamentals

Use of Electronic Development Boards for Prototyping and Education

Use of Electronic Development Boards for Prototyping and Education: reference information, design-review checkpoints and related hdi fundamentals resources.

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HDI fundamentals

HDI Flex PCBs: Key Technology for Miniaturized Electronics

HDI Flex PCBs: Key Technology for Miniaturized Electronics: reference information, design-review checkpoints and related hdi fundamentals resources.

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HDI fundamentals

PCB Boards: A Crucial Component of Modern Electronics from Panasonic

PCB Boards: A Crucial Component of Modern Electronics from Panasonic: reference information, design-review checkpoints and related hdi fundamentals resources.

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