Tips & Tricks - Why Do Components Tombstone - Eurocircuits (2023)

Tips & Tricks - Why Do Components Tombstone - Eurocircuits (1)

Ever wondered what is Tombstoning and why does it happen?

What is Tombstoning?

Tombstoning also known as the Manhattan or crocodile effect is where one end of the component lifts from a pad of the PCB during reflow soldering process and affects mainly surface mount components such as resistors, capacitor and inductors.

Tips & Tricks - Why Do Components Tombstone - Eurocircuits (2)Tips & Tricks - Why Do Components Tombstone - Eurocircuits (3)

Why does it happen?

There are a few reasons for Tombstoning such as the soldering process, contamination of the PCB or the actual PCB Layout.

When soldering a component to a PCB it is important that solder reaches the ideal fluid state, this is known as the Wetting of the solder.

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It then forms an inter-metallic bond between the terminal of the component and the pad on the PCB before it cools and becomes solid.

Tombstoning occurs when one end of a component (like a resistor) completes the Wetting process before the other. This end then pulls and tilts the component to create the Tombstone effect.

The PCB Layout can influence the Wetting process. An imbalance of the thermal mass between component pads will result in one end completing the wetting process before the other.

At Eurocircuits we continue to develop our Tools, Information, and Guidelines to help PCB Designer Engineers to create ‘Right First Time for Manufacture’ PCB Layouts.

Why not take a few minutes to review our latest Guideline on Tombstoning.

Take a look at some of the exciting Projects that were presented @ Electronica 2019

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Should you have any questions about any of our services, please feel free to get in touch via email, telephone or instantly with our online chat Tips & Tricks - Why Do Components Tombstone - Eurocircuits (5)during office hours. We will be more than happy to help.

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News & InformationTips & Tricks - Why Do Components Tombstone - Eurocircuits (11)

For many years Eurocircuits have provided you with important News & Information about our services, products, free to use smart tools and the Electronic Manufacturing World. Take a peak at what we offer:

Tips & Tricks - Why Do Components Tombstone - Eurocircuits (12)Eurocircuits company update. This section contains updates and information about the Eurocircuits Group. As a valued partner you will receive updates and news covering our company activities, team news and business developments etc.

Tips & Tricks - Why Do Components Tombstone - Eurocircuits (13)Events & Workshops. Eurocircuits is an active participant of events and exhibitions, it also organises events, sbinars and workshops, especially concerning technical topics

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Tips & Tricks - Why Do Components Tombstone - Eurocircuits (14)Tips & Tricks.The electronic value chain starts with a design and then converting it to a digital form. This section covers all design related issues, their influence on manufacturing.

Tips & Tricks - Why Do Components Tombstone - Eurocircuits (15)Electronic Manufacturing Technology. Eurocircuits goal is to inform all Electronic Designers about Electronic Manufacturing Techniques and processes. Whilst, this may start with PCB manufacturing it also covers the Assbbly, Testing and Housing etc…

Tips & Tricks - Why Do Components Tombstone - Eurocircuits (16)Online Smart Tools – Services & Products. All Eurocircuits customers have access to an online customer account and through this, access to our Smart Tools and services. This section covers User Guides, updates and new features and tools etc. It will help you to optimise your knowledge, use of these tools and the electronic manufacturing services and products we offer.

Tips & Tricks - Why Do Components Tombstone - Eurocircuits (17)Customer Applications & Student Projects. Eurocircuits actively encourages its customers to share their experiences with other customers. In addition to this, we support many student projects and inspire thb to write about their adventures and the technology they have designed.

Tips & Tricks - Why Do Components Tombstone - Eurocircuits (18)eCvelo. Next to being an Electronics Manufacturing Company, Eurocircuits also has a heart for clean mobility. As result we have developed and are building trike and quad cycles with a covered frame. Keep updated by opting in to this section.

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Tips & Tricks - Why Do Components Tombstone - Eurocircuits (20)Eurocircuits TV is Eurocircuits’ media channel bringing electronic designers and others video news and VLOGs about our electronic manufacturing world.
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