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Related Experiment Video

Updated: Jul 8, 2026

Laser-induced Forward Transfer for Flip-chip Packaging of Single Dies

Laser-induced Forward Transfer for Flip-chip Packaging of Single Dies

Published on: March 20, 2015

The charge flipping algorithm.

Gábor Oszlányi¹, András Süto

¹Research Institute for Solid State Physics and Optics of the Hungarian Academy of Sciences, POB 49, H-1525 Budapest, Hungary. go@szfki.hu

Acta Crystallographica. Section A, Foundations of Crystallography

|December 25, 2007

Summary

Charge flipping, an ab initio structure determination algorithm, offers a novel approach distinct from classical methods. This method successfully solves structures for various crystals using diverse diffraction data, presenting a promising alternative.

Related Experiment Videos

Last Updated: Jul 8, 2026

Laser-induced Forward Transfer for Flip-chip Packaging of Single Dies

Laser-induced Forward Transfer for Flip-chip Packaging of Single Dies

Published on: March 20, 2015

Area of Science:

Crystallography
Materials Science
Computational Chemistry

Background:

Classical direct methods for ab initio structure determination rely on atomicity assumptions.
A novel algorithm, charge flipping, has emerged as a powerful tool for structure solution.
Understanding its principles and applications is crucial for advancing crystallographic techniques.

Purpose of the Study:

To summarize the current state and capabilities of the charge flipping algorithm.
To highlight its unique working principle based on electron density perturbation.
To explore its potential as an alternative to established direct methods in structure determination.

Main Methods:

The charge flipping algorithm operates by perturbing plateaus of low electron density, not directly on atomicity.
It has been successfully applied to periodic and aperiodic crystals.
Data utilized include single-crystal and powder diffraction, with both X-ray and neutron radiation.

Main Results:

Successful structure solutions have been achieved for a wide range of crystalline materials.
The algorithm demonstrates versatility across different data types and radiation sources.
Algorithmic improvements, solution identification, and data requirements have been investigated.

Conclusions:

Charge flipping represents a significant advancement in ab initio structure determination.
Its distinct methodology offers complementary applications to existing direct methods.
The algorithm shows considerable promise as a future alternative in the field of crystallography.