The 37th Annual EOS/ESD Symposium in Reno, Nevada

The 37th Annual EOS/ESD Symposium and Exhibits will be held at the Peppermill Resort Hotel, Reno, Nevada.

Desco has been a part of the ESD Symposium for nearly 30 years. Desco employees have volunteered their time to be a part of the ESD Association’s standards meetings, working groups, and other functions at the annual symposium. Desco will also have a booth in the exhibits area again this year.

Dates – September 27 – October 2, 2015 with Exhibits opened from Monday, September 28th at 5:00 p.m. closing Wednesday, September 30th at 1:30 p.m.

Register Online

View the 2015 Program Guide

Lodging reservations can be made by calling the toll-free reservations line at 1-800-282-2444 (reference group code AELEC15).

Static Electricity and Wearable Devices

A new blog post on the EDN Network titled Static Electricity Aims To Power Wearable Devices discusses how static electricity may be used for energy harvesting to power devices such as fitness bands, medical monitoring systems, and watches.

In addition to the discussion about using static electricity for the energy that it can provide, the post contains some other important information about ESD:

“ESD causes more than one-third of integrated circuit field failures, showing up as leakage, short circuits, burnout, contact damage, gate oxide rupture, and resistor-metal interface damage. As feature sizes shrink, the problem is only getting worse.”

“The cause of electrostatic buildup is the triboelectric effect:  material becomes electrically charged after it contacts a different material through friction. Although this is one of the most frequently experienced effects in everyday life, the precise mechanism is still being studied.”

Perfect ESD Audits – How General Dynamics Mission Systems facility in Bloomington, MN Does It

The recent InCompliance article Achieving Perfect ESD Audits for S20.20 ESD Control Programs discusses the ESD Control Plan of General Dynamics Mission Systems facility in Bloomington, MN ESD Control Plan and their ongoing effort to manage the program.  The article outlines the program as follows:

  • ESD Training Program
  • Recurrent ESD Auditing Program
  • Changes Made to the Program That Improved Discipline and Audit Results
  • 12” rule violations
  • Operators Using Defective or Unplugged Constant Monitors
  • Stop signs
  • Ionizer violations
  • Out of date calibration stickers
  • Faraday shielding violations
  • Repeat violations
  • ESD smock violations
  • Heel strap violations
  • ESD cart violations
  • Soldering iron violations
  • ESD event monitoring

Managing an ESD Control Plan is all about continuous improvement and continues to become more complicated for manufactures. An ESD Control Plan that improves productivity, quality, and reliability and is flexible enough to accommodate changes and improvements in the manufacturing process is ideal. Factors that must be considered in the long term management of an ESD Control Plan include:

  • Value increasing of electronic devices being manufactured
  • Devices are increasing in sensitivity to ESD
  • Automation and other changes to the manufacturing process

ESD Control Plans must evolve to keep pace with costs, device sensitivities, and the way devices are manufactured in the future. Desco has been working with companies to help manage their ESD Control Plans for over 30 years.  Please let us know how we can help make your next ESD audit perfect.

 

 

IBM Reports Advance in Shrinking Chip Circuitry

Earlier this month IBM announced that they “have created a “test” chip with transistors 7 nanometers thick.” See the full story HERE

This direction is consistent with the ESD Association’s (www.esda.org) white paper Electrostatic Discharge (ESD) Technology Roadmap – Revised March 2013 which forecasts increased ESD sensitivities stating:

“Also, RF circuit operations will continue to become more prevalent while these pins can tolerate very low capacitive load from ESD cells. Due to these trends, the ICs are expected to become even more sensitive to ESD events in the years 2012 and beyond. Therefore, the prevailing trend will be circuit performance at the expense of ESD protection levels.”

This continuing trend is moving most components used in electronics to Class 0 levels:

0A < 125V
0B 125 to < 250V

The increased sensitivity is encouraging manufactures to increase ESD protective redundancies by:

– Controlling access to the ESD Protected Area
– Adding ESD control items to the ESD control plan
– Continually monitoring the performance of the ESD control items with data acquisition software.
– Increasing the frequency of periodic compliance verification measurements.

For more information on improving an ESD Control Plan see the InCompliance article – Now is the Time for ESD Control Programs to be Improved

4th of July 2015 Observance

All US based Desco Industries locations will be closed on Friday July 3, 2014 in observance of the 4th of July Holiday. Customer service, production, shipping, and all other departments will be closed. No orders will be processed for the day. Normal operations will resume on Monday July 6, 2014.

We wish you a safe and happy 4th of July Holiday weekend.

Chino CA Production Facility

Chino, CA (CA1) Production Facility

New machine at Chino, CA facility

One of the key groups of products that we manufacture at our Chino, CA location is our testers, monitors and meters.  We use a CNC machine to cut holes in the cases where connections are made, LEDs are placed and for other functions relating to the product.  Watch a video of a test run HERE

CNC1

 

 

 

 

 

 

We designed a modular clamping system in-house. We also designed 16 slide bases to be quickly exchanged after being machined without the use of any tools.

CNC2

 

 

 

 

 

 

Watch a test run on the cases for our Digital Surface Resistance Meters

CNC3

The Shocking Truth (and Lies) about ESD

Paul McNamara’s recent post titled ‘The Shocking Truth (and Lies) about ESD” on the Network World‘s documents some stories of damage caused by ESD.

One notes:

I once zapped my home’s thermostat when I was attempting to change the temperature setting. The LCD went blank and refused to come back on. I ended up replacing the unit.

While the damage caused by ESD can seem like a mystery, the basic practices of controlling ESD when handling ESD susceptible items are pretty straight forward.

  • Establish an ESD Protected Area. It can be one bench or a whole facility.
  • Ground all conductors including operators.
  • Use a dissipative grounded surface for ESD susceptible products to be placed on if needed.
  • Remove all non-process essential insulators from the ESD Protected Area. Use ionization to control charges on process essential insulators.
  • If an ESD susceptible item needs to be removed from the ESD Protected Area, place it in a shielding bag or storage container that forms a faraday cage.

Desco has been making products to be used in an ESD Protected Area for over 30 years.

Questions about ESD Control?

Question: 1) In the scope, 200 volts CDM & 35 volts on isolated conductors are added. What is the intention to add them? Why are both of them determined on the value of 200 volts and 35 volts, respectively? 

Question: 2) As defined in clause 8.3.1, “If the field measured on the process required insulator is greater than 125 volts/inch and the process required insulator is less than 2.5 cm (1 inch) from the ESDS item, steps shall be taken to either A)… or B)…”, is there any relation between 125 volts/inch in here and 200V CDM in scope? If there is ESDS items whose sensitivity level is lower than CDM 200 volts (e.g., 100 volts) to be handled, which additional control elements or adjusted limits should be required? 

For answers to these questions and more answers about ESD control see the ESDA’s Threshold March/April edition HERE.

Busy day at CA1

Visit Desco at the IPC Apex Expo in San Diego, CA – February 24-26 Booth#318

Stop by the Desco Industries Inc booth to see new products including our:

The exhibitions area is open Tue 2/24 – 10AM to 6PM, Wed 2/25 – 10AM to 6PM,and Thur 2/26 10AM to 2PM.

For more info see the IPC Apex Expo website HERE

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