Engineering · Electrical and Electronic Engineering

CCD and CMOS Imaging Sensors

Astronomers map six dense galaxy nurseries from the young universe

Astronomers have confirmed six dense groups of young galaxies from about 2.4 to 3.1 billion years after the Big Bang and reconstructed their three-dimensional structures. Galaxies in the densest regions showed brighter hydrogen emission and fewer faint emitters than galaxies in less crowded surroundings.

1 month ago·50 views

Abstract editorial illustration accompanying the article: A programmable light mask printed tiny patterns using standard chipmaking equipment

Engineering & Technology

A programmable light mask printed tiny patterns using standard chipmaking equipment

Researchers demonstrated a programmable photomask that changed pixel patterns during exposures in a standard semiconductor photolithography stepper. The device produced photoresist features as small as about 1.7 micrometres, providing a basis for masks that could be reprogrammed without replacing the whole reticle.

2 months ago·96 views