
The human-body model (HBM) is the most commonly used model for characterizing the susceptibility of an electronic device to damage from
electrostatic discharge
Electrostatic discharge (ESD) is a sudden and momentary flow of electric current between two electrically charged objects caused by contact, an electrical short or dielectric breakdown. A buildup of static electricity can be caused by tribochar ...
(ESD). The model is a simulation of the discharge which might occur when a human touches an electronic device.
The HBM definition most widely used is the test model defined in the
United States
The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 U.S. state, states, a Washington, D.C., federal district, five ma ...
military standard, MIL-STD-883, Method 3015.9, Electrostatic Discharge Sensitivity Classification. This method establishes a simplified equivalent
electrical circuit
An electrical network is an interconnection of electrical components (e.g., batteries, resistors, inductors, capacitors, switches, transistors) or a model of such an interconnection, consisting of electrical elements (e.g., voltage sour ...
and the necessary test procedures required to model an HBM ESD event.
An internationally widely used standard i
JEDEC standard JS-001
HBM is used primarily for manufacturing environments to quantify an integrated circuit to survive the manufacturing process. A similar standard,
IEC 61000-4-2
IEC 61000-4-2 is the International Electrotechnical Commission's immunity standard on electrostatic discharge (ESD). The publication is one of the basic EMC standards of the IEC 61000–4 series. The European equivalent of the standard is called ...
, is used for system level testing and quantifies protection levels for a real world ESD event in an uncontrolled environment.
Model
In both JS-001-2012 and MIL-STD-883H the charged human body is modeled by a 100 pF
capacitor
A capacitor is a device that stores electrical energy in an electric field by virtue of accumulating electric charges on two close surfaces insulated from each other. It is a passive electronic component with two terminals.
The effect of a ...
and a 1500 ohm discharging resistance. During testing, the capacitor is fully charged to several kilovolts (2 kV, 4 kV, 6 kV and 8 kV are typical standard levels) and then discharged through the
resistor
A resistor is a passive two-terminal electrical component that implements electrical resistance as a circuit element. In electronic circuits, resistors are used to reduce current flow, adjust signal levels, to divide voltages, bias activ ...
connected in series to the
device under test A device under test (DUT), also known as equipment under test (EUT) and unit under test (UUT), is a manufactured product undergoing testing, either at first manufacture or later during its life cycle as part of ongoing functional testing and calibra ...
.
See also
*
Charged-device model The charged-device model (CDM) is a model for characterizing the susceptibility of an electronic device to damage from electrostatic discharge (ESD). The model is an alternative to the human-body model (HBM).
Devices that are classified according ...
*
Transmission-line pulse
Transmission-Line Pulse (TLP) is a way to study integrated circuit
An integrated circuit or monolithic integrated circuit (also referred to as an IC, a chip, or a microchip) is a set of electronic circuits on one small flat piece (or "chip" ...
References
{{reflist
External links
Joint Standard JS-001-2012 Final Revision.New Joint Standard: ANSI/ESDA/JEDEC JS-001-2011, For Electrostatic Discharge Sensitivity Testing, Human Body Model (HBM) - Component Level(
Wayback Machine
The Wayback Machine is a digital archive of the World Wide Web founded by the Internet Archive, a nonprofit based in San Francisco, California. Created in 1996 and launched to the public in 2001, it allows the user to go "back in time" and s ...
copy)
New Joint Standard JS-001-2011 info.MIL-SDT-883 overview page, all revisionsHuman Body Model OverviewOn Semiconductor HBM vs IEC61000-4-2 Comparison Overview
Electrical phenomena