Many important semiconductor package defects are completely hidden from optical inspection. A solder ball can contain a void. A bond wire can be broken inside an encapsulated package. A die-attach layer may contain large areas of voiding. A package substrate can contain an open trace, and an advanced package may have ...
The factors affecting silicon wafer cost are numerous. From the resistivity required for different applications to the physical size of the wafers, and not least the quality grades that separate the pristine from the less perfect; each aspect intricately influences the cost.
As we embark on this explanation, we'll unwrap the ...
Focused Ion Beam (FIB) technology is one of the most versatile tools used in semiconductor failure analysis and microelectronics characterization. A FIB system directs a tightly focused beam of ions onto a sample. By controlling the beam current, energy, position and scanning pattern, engineers can remove material from extremely specific locations, ...
OBIRCH (Optical Beam Induced Resistance Change) is a laser-based fault-localization technique used in semiconductor failure analysis to identify electrically abnormal regions such as resistive shorts, leakage paths, defective vias and interconnect problems.
The technique works by scanning a focused laser across an electrically biased semiconductor device. Local laser heating changes the ...
Package failure analysis is the systematic investigation of defects and failures originating within semiconductor packaging, interconnects, solder connections, die attach, bond wires, redistribution layers and other structures that connect the semiconductor die to the outside system.
A semiconductor device may fail electrical testing even though the silicon itself is functioning correctly. ...
The Qmode project is funded with an MIT-R&D collaboration project grant from the Provincie Overijssel, dedicated to stimulate the innovation and development of products, processes and services of local SMEs working in the Dutch Top Sectors. The collaboration established in Qmode will help QuiX secure a leading position in the ...
Once an electrical failure has been localized inside an integrated circuit, the next challenge is determining what physically went wrong. Was a metal interconnect broken? Did a via fail? Is there contamination between two structures? Has a dielectric layer broken down? Is a transistor structure abnormal? Or did the failure originate in the ...
Emission Microscopy (EMMI) is an optical fault-localization technique used in semiconductor failure analysis to identify electrically active defects inside integrated circuits. Instead of physically opening individual circuit structures and searching for damage, emission microscopy detects extremely weak light generated while a semiconductor device is electrically operating or biased.
Abnormal photon emission ...
October 15, 2024 – Xscape Photonics, a pioneer in next-generation data center connectivity, today announced the closing of a $44 million Series A funding round, bringing its total funding to $57 million. The round was led by IAG Capital Partners and included participation from Cisco Systems Inc., Nvidia Corp., Altair ...
Semiconductor devices can fail for many reasons: manufacturing defects, electrical overstress, electrostatic discharge, contamination, packaging problems, excessive temperature, mechanical stress, aging or defects introduced during assembly.
Finding the actual cause of an IC failure, however, is rarely as simple as looking at the damaged device.
Semiconductor failure analysis (FA) is the systematic ...
