What happens if you staple ESD Bags shut?
Question:
What happens if you staple ESD Bags shut? Does that damage the ESD Bag’s effectiveness? What if the ESD Bag is heat sealed shut & a staple on the seam is used to attach paperwork?
Answer:
Desco Statshield® ESD Shielding Bags have a layer of metalized film which creates continuous conductive enclosure or Faraday Cage to provide electrostatic shielding protecting the ESD sensitive devices placed inside the Bag. The use of stapling to close ESD Bags is counter productive and not recommended. The metal staple provides a conductive path from the outside of the ESD Bag to the inside. The use of a metal staple would undermine the effectiveness of the ESD Bag making a conductive path for charges outside the Bag to charge outside the Bag to charge or discharge to ESD sensitive components inside the Bag.
To close the ESD Bag, it is recommended to heat seal, or use Desco ESD Labels after the opening of the bag has been folded over.
To view Desco ESD Labels Click Here
Or to view Desco Antistatic Tape Click Here
Carefully locating the staple to only the seam of the Desco Statshield® Bag would theoretically make it part of the “continuous conductive enclosure” and be acceptable. However, we are not aware of any end user using this method and cannot recommend it. The staple would be an exposed conductor that could charge or discharge to ESD sensitive devices.
To ask an ESD Question Click Here.
To view Desco’s Frequently Asked Questions Click Here.
Another Tragic Victim of Electrostatic Discharge
Lots of end users tell us that rarely, if ever do they connect an ESD event to a failed product. But almost always, end users are not willing to invest the time in investigating the root cause of their product failure to determine if it was an ESD event or not. Most of the time failure is caulked up to “defective component” or “dead board”, the product is scraped, and manufacturing continues. So long as yields from production stay consistent and there is no increase in the amounts of returned product, additional time to determine the root cause of the failure is not needed. As this blog post from Chip Overclock notes:
To read the full article Click Here.
So how many product failures are due to ESD damage? Nobody ever really knows, but we have been told that about 50% of non-physical damage product failures in particular industries are due to ESD events. This number seems to work for most electronics manufacturers that we work with. Thanks to Chip Overclock for taking the time to get us a little closer to knowing how many product failures are due to ESD damage.
How are the electronics inside plastic cell phones and hand held computers protected from externally generated electrostatic fields?
Question:
How are the electronics inside plastic cell phones and hand held computers protected from externally generated electrostatic fields? -Anonymous, Elkhorn, Wisconsin
Answer:
The electronics inside plastic cell phones and hand held computers may be protected from externally generated electrostatic fields by several factors: 1 – a static electric field does not generally penetrate materials, especially Gaussian surfaces (housings, chassis, etc.) 2 – a working commercial electronic device must pass certain safety requirements 3 – the Input Output (I/O) connections are generally well protected on a finished electronic device 4 – the paths into the device might be more involved (high impedance) and slow the effect of an ESD event Some things you should watch out for: – Open and direct I/O ports where an ESD event could occur (leading the current pulse into the device to wreck havoc) – dynamic electric fields (when a static field collapses, due to say an ESD event) and where they discharge to – finished electronic devices are still susceptible to ESD events, especially when a metal surface is involved.
To ask an ESD Question Click Here.
To view Desco’s Frequently Asked Questions Click Here.
Trustat™ Wrist Straps now $5.00!
- One Size Fits All Adjustable Wrist Band
- 4mm Snap
- Standard Banana Jack .166in (4.2mm)
- 1 Meg Ohm Resistor
- 6 Foot Coil Cord
- Alligator Clip Included
- Stock In: Chino, CA
| Item | Description | Price | Promo Price |
| 04540 | Trustat™ Adjustable Blue Wrist Strap, 6 Ft Coil Cord 4 mm Snap | $7.46 | $5.00 |
Use code PromoD387 on your online order. Offer expires February 6th, 2012.
Promotional Price is valid for online orders only.
This offer may not be used in combination with any other Desco promotional offer.
Reseller discounts still apply
Sign Up HERE | Request a Sample HERE | See a list of Sales Reps HERE
All Items & programs are available through your participating distributor | Submit an ESD Question HERE
We Do Custom Embroidery!
Make smocks special with:
- Company Names and Logos
- Individual Names Company Name and Logo
- Custom Logos
Logos:
- Most logos (up to 10K stitches) will fit on
a standard garment breast area - We provide a logo evaluation and
samples at no charge - We digitize logos from high
resolution JPEG files*
Custom Embroidery for Name, Departments, Etc:
- 2 Font Styles in 2 Different Sizes
- 6 Standard Colors
- Custom Colors and Fonts Available
Typical Embroidery Costs:
- $5.50 for custom logo (*plus a $100 digitizing fee)
- $2.50 for names or 10 letter wordings
- $8.00 for two embroideries
*A one time $100 digitizing fee may be applied to first orders
or samples. Garment orders with custom embroidery of $500
or more may have the digitizing fee waived.
Request a sample – Click Here
Order a Custom Embroidered Smock – Click Here
New Disposable Conductive Bootie
- One Size Fits All with Elastic Opening
- Conductive Tab Connects Operator with ESD Flooring
- Material Will Not Scratch or Mark Flooring
- Acceptable for Cleanroom Use
| Item | Description |
List Price
|
| 04584 | Conductive Disposable Bootie, Pack of 150 |
$94.73
|
Get a Complimentary Copy of the ESDA’s Compliance Verification ESD TR53
Desco has long been a supporter of the ESD Association and we have always encouraged our customers to purchase copies of standards and other documents published by the organization ANSI/ESD S20.20 (which is also available for free from the ESDA) specifies that compliance verification testing be per ESD TR53. This is the spec that companies should note in their written ESD control plans. ESD TR53 describes the test methods and instrumentation that can be used to periodically verify the performance of ESD protective equipment and materials. It also includes troubleshooting tips.
Currently the ESDA is offering a complimentary copy of the ESD TR53 to people that register on their website.
Happy New Year from Desco!
Wishing you a Happy New Year!
Desco will be closed on Monday, January 2, 2012! We’re looking forward to another successful year with all of you in 2012.
Los Alamos National Lab Tracks Rudolph’s Nose, Santa’s Sleigh
…with Electrostatic Discharge (ESD)
Follow Live Dec 24: Los Alamos National Lab Tracks Rudolph’s Nose, Santa’s Sleigh
Happy Holidays from Desco!
From all of us here at Desco, we would like to wish you a HAPPY HOLIDAYS!
We will be closed on Monday, December 26.
As always, thank you for your business and the opportunity to provide you with an ESD solution!
Our West Coast operations celebrate in California!
Our East Coast operations celebrate in Massachusetts!
