Images of ElectroStatic Discharge Damage Copyright 2005 DESCO
Images of ElectroStatic Discharge Damage Copyright 2005 DESCO INDUSTRIES INC. Images of ESD damage Damage visible using
Scanning Electron Micrograph (SEM) after significant enhancement by delayering and etch enhancement. Used with permission of Hi-Rel Laboratories, Inc. Spokane WA 99217 www.hrlabs.com
www.esdsystems.com Photo of ESD arcing from finger to component This is not a computer simulation. Technician was connected to a small magneto www.esdsystems.com
This is not HBM-ESD. Extensive damage on this transistor where the bond has melted is typical of surges from Inductors, Transformers, and Motors. www.esdsystems.com
Arcing of this nature within an integrated circuit is typical of testing damage. Human Body Model ESD does not create sufficient damage to be seen in an optical microscope. www.esdsystems.com Optical photo of a large Integrated Circuit which has
experienced ESD damage to the pin noted by the arrow. www.esdsystems.com Higher magnification photo of pin noted by the arrow in the prior slide This taken at 400 times magnification on a 4" X 5" photo. The damage is noted as the "fuzz" at the end of the arrow.
www.esdsystems.com Now you see it!! Overlying glassivation has been removed and the surface decorated to show the ESD damage at 5,000 times magnification in this scanning electron micrograph.
www.esdsystems.com Techniques used to locate HBM-ESD damage in an integrated circuit. Clockwise from the upper left optical photo at 400X shows no damage. The upper right hand scanning electron micrograph (SEM) shows no damage. The lower right hand image is the current flow in the device which shows a
subsurface arc between the two metal lines. The lower left photo is a combination of the SEM image and the current
flow image. www.esdsystems.com Scanning electron micrograph (SEM) image of the device in prior slide after glassivation removal and surface decoration. The enlargement 2,000 times magnification.
www.esdsystems.com Optical micrograph of an Integrated Circuit damaged by HBM ESD. Damage has occurred in the large thin oxide metal capacitor in the upper center of the image. However, no physical damage is visible.
www.esdsystems.com Scanning electron micrograph (SEM) image of the ESD damage after removal of the capacitor metallization. Note the characteristic eruption thru the oxide. Magnification is 10,500 times. www.esdsystems.com
Optical image of an Integrated Circuit damaged by HBM ESD. The second pin from the bottom left is good and its mirror image, second from the right is damaged. However, no physical damage is visible. www.esdsystems.com
Scanning electron micrograph (SEM image of the damage site on the Integrated Circuit shown in prior slide. Metal has been removed expose the underlying damage site. Magnification is 6,450 times. www.esdsystems.com
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