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Terra Part #PriceShips in
14.75"12Clear AcrylicDouble Wide6 Chambers5"Without Inlays 2517-31A $3,69129-35 Days
14.75"12Static-Dissipative PVCDouble Wide6 Chambers5"Without Inlays 2517-74A $7,07029-35 Days
14.75"16Clear AcrylicDouble Wide8 Chambers5"Without Inlays 2517-32A $6,11029-35 Days
14.75"16Static-Dissipative PVCDouble Wide8 Chambers5"Without Inlays 2517-75A $10,41029-35 Days
14.75"18Clear AcrylicDouble Wide6 Chambers2"With Inlays 2517-07A $6,99129-35 Days
14.75"18Clear AcrylicDouble Wide6 Chambers2"Without Inlays 2517-15A $5,15929-35 Days
14.75"18Clear AcrylicDouble Wide6 Chambers3"Without Inlays 2517-23A $5,71629-35 Days
14.75"18Static-Dissipative PVCDouble Wide6 Chambers2"With Inlays 2517-39A $10,16629-35 Days
14.75"18Static-Dissipative PVCDouble Wide6 Chambers2"Without Inlays 2517-47A $8,44629-35 Days
14.75"18Static-Dissipative PVCDouble Wide6 Chambers3"Without Inlays 2517-55A $8,96729-35 Days
14.75"24Clear AcrylicDouble Wide8 Chambers2"With Inlays 2517-08A $9,21729-35 Days
14.75"24Clear AcrylicDouble Wide8 Chambers2"Without Inlays 2517-16A $6,77529-35 Days
14.75"24Clear AcrylicDouble Wide8 Chambers3"Without Inlays 2517-24A $7,55529-35 Days
14.75"24Static-Dissipative PVCDouble Wide8 Chambers2"With Inlays 2517-40A $13,32329-35 Days
14.75"24Static-Dissipative PVCDouble Wide8 Chambers2"Without Inlays 2517-48A $11,03529-35 Days
14.75"24Static-Dissipative PVCDouble Wide8 Chambers3"Without Inlays 2517-56A $11,76729-35 Days
10.75"12Clear AcrylicDouble Wide6 Chambers5"Without Inlays 2517-27A $3,55829-35 Days
10.75"12Static-Dissipative PVCDouble Wide6 Chambers5"Without Inlays 2517-59A $6,46429-35 Days
10.75"16Clear AcrylicDouble Wide8 Chambers5"Without Inlays 2517-28A $4,20629-35 Days
10.75"16Static-Dissipative PVCDouble Wide8 Chambers5"Without Inlays 2517-71A $7,86329-35 Days
10.75"18Clear AcrylicDouble Wide6 Chambers2"With Inlays 2517-03A $5,97829-35 Days
10.75"18Clear AcrylicDouble Wide6 Chambers2"Without Inlays 2517-11A $4,38829-35 Days
10.75"18Clear AcrylicDouble Wide6 Chambers3"Without Inlays 2517-19A $4,83229-35 Days
10.75"18Static-Dissipative PVCDouble Wide6 Chambers2"With Inlays 2517-35A $8,72829-35 Days
10.75"18Static-Dissipative PVCDouble Wide6 Chambers2"Without Inlays 2517-43A $7,23929-35 Days
10.75"18Static-Dissipative PVCDouble Wide6 Chambers3"Without Inlays 2517-51A $7,65429-35 Days
10.75"24Clear AcrylicDouble Wide8 Chambers2"With Inlays 2517-04A $7,86029-35 Days
10.75"24Clear AcrylicDouble Wide8 Chambers2"Without Inlays 2517-12A $5,77529-35 Days
10.75"24Clear AcrylicDouble Wide8 Chambers3"Without Inlays 2517-20A $6,40929-35 Days
10.75"24Static-Dissipative PVCDouble Wide8 Chambers2"With Inlays 2517-36A $11,09529-35 Days
10.75"24Static-Dissipative PVCDouble Wide8 Chambers2"Without Inlays 2517-44A $9,14129-35 Days
10.75"24Static-Dissipative PVCDouble Wide8 Chambers3"Without Inlays 2517-52A $9,71429-35 Days
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Product Details

• Terra's Faraccator™ Storage Systems control static, moisture and contamination, extending the shelf lives of stored materials

• Their Faraday-cage design shields components stored inside pull-out trays from electro-static discharge (ESD)

• Includes stainless steel trays with the following options: 2", 3", or 5" clearance and optional slotted stainless steel inlays for organized storage “waffle” die packs, cutting locating time and increasing space efficiency (order tray dividers separately)

• Faraday-design provides 100% static safety; conforms to DOD HDBK 263 and MIL-SPEC 1686Includes flow meter and Automatic Relief/Bleed (RB) valve for controlled purge of nitrogen or other clean, dry gas; select optional Dual Purge and NitroWatch control systems for automated set-point controlAvailable automatic humidity controls help extend shelf lives indefinitely while reducing gas consumptionStatic-Dissipative PVC protects against static and contamination build-ups

Static Isolation Desiccators

  • Desiccators: Features and Design overview
  • Leveling your Desiccator
  • Static-Control Desiccator Cabinets Clear Acrylic Static-Control Desiccator w/ Inlays Faraccator
  • plastic_desiccators_faraccator_1_chamber
  • Faraccator Removable Trays Faraccator Removable Stainless Steel Trays
Static-Control Desiccator Cabinets
Faraccator Removable Trays

Features & Benefits

Features & Benefits

Faraccators Explained

Faraccator Construction

Even the slightest static discharge can spell disaster for today’s delicate components. Because the dangers of ESD (electrostatic discharge) are amplified in a low humidity environment, Terra strongly urges that you consider these measures as part of your static control program.

Static electricity is an excess or deficiency of electrons on a surface. The total number of deficient or excess electrons determines the charge on that surface. A surface exhibiting an excess of electrons is charged negatively, and an electron-deficient surface is charged positively.

Although static electricity has plagued the semiconductor manufacturing industry ever since the advent of integrated circuitry, its effects pose especially serious problems to today’s miniaturized, sophisticated, and expensive components. These devices can be seriously damaged or destroyed by charges much smaller than a person can typically detect.

How are Electrostatic Charges Generated?

Electrostatic charges are usually generated by friction between and/or separation of two dissimilar materials, at least one of which is a nonconductor or a poor conductor of electricity. The accumulated charge (static) resides on the surface of, rather than within, the charged nonconductive object.

Electrostatic discharge (ESD) occurs when an accumulated charge (which may be present on an operator, the operator’s clothing, or on any other non-conductive object) is discharged through a conductor (which may be part of a wafer, a chip, or a packaged device), and it may occur whenever the electrostatic potential corresponding to accumulated charge is great enough.

Acrylic or Static-Dissipative PVC Shell

Acrylic, the most common plastic used in storage enclosures, is a prolific static generator. The act of cleaning an acrylic desiccator with a cleanroom wiper is enough to generate surface charges that can discharge onto semiconductor components. One way to avoid potentially disastrous static damage is to select Static-Dissipative PVC.

This material not only dissipates static charges safely, but it also eliminates the particle attraction that static charges create. Surfaces stay clean, inside and out, making this material perfect for use in Class 1 cleanrooms.

Because static-dissipative PVC is transparent and highly durable, it can be used in place of acrylic in nearly any application, desiccators included. It features a surface resistivity of approximately 107 ohms per square, placing it in the “dissipative range”. It is completely noncontaminating—with no measurable outgassing—and it resists a wide range of chemicals.

Note: To protect Static-Dissipative PVC surfaces, desiccators made of this material must include stainless steel shields installed at the bottom of each chamber.

Fabricated of clear acrylic or Static-Dissipative PVC, Faraccator™ Storage Systems provide full 360-degree viewing of stored components. Solvent-welding and contamination-free materials guarantee a clean environment free of outgassing. Faraccator™ cabinets house from one to four compartments of two different widths (see dimensional chart). Because Faraccator™ components are standardized, you can easily replace a damaged door.

Stainless Steel Slide-Out Drawers and Runners

The system's 304 stainless steel trays create a Faraday cage that shields stored materials against electro-static discharge (ESD). They can be easily removed and used as handling trays, eliminating the need to touch—and possibly to contaminate—sensitive microelectronic components.

The trays mount easily into the system's runners to become slide-out drawers. Runners feature an easy-glide suspension system that supports up to 40 lbs (18.1 kg). when fully extended and allows full access to every inch of drawer space. Two-drawer compartments provide 5.25" (133 mm) of clearance and include 5”-deep (127mm) trays suitable for 4" (102 mm) waffle packs; three-drawer compartments provide 3.1875" (81 mm) of clearance and are available with 2”-deep or 3”-deep trays, suitable for 2" (51 mm) waffle packs.

Stainless steel inlays, included in Faraccators with 2”-deep trays, are slotted every .375” (10 mm) to permit easy insertion of stainless steel dividers (order separately). Inlay packages allow front-to-back storage of up to 192 2-inch waffle packs (with retaining dividers) in small trays, and up to 240 2-inch waffle packs in large trays.

For enhanced static-control, select a Faraccator made of static-dissipative PVC, which dissipates surface charges that can attract and hold particles.

Although the Faraccator configuration does not form the closed box that Faraday described, both shield and tray are at the same potential and no electric field can exist within the volume they enclose. This effect can be demonstrated simply by directing an electrical discharge at the opening between the shield and the tray. The discharge never enters the cavity, and any stored materials inside remain completely shielded from the effects of the discharge.

Automatic Relief/Bleed Valve

Terra's Automatic Relief/Bleed (RB) Valve opens up at 0.01 PSI, relieving overpressure that could damage desiccators; also works as a check valve to prevent influx of room air.

Static-Dissipative PVC Plating

Terra's SDPVC features bonded dissipative layers that resist abrasion. SDPVC desiccators retain their surface resistivity of 106 - 108 ohms/square indefinitely (unlike spray-on coatings that can wear off after a few years), protecting your materials against ESD damage. Further, the control of static charges eliminates particle attractions, helping maintain clean surfaces.

Replacement Stainless Steel Trays

Removable stainless steel trays, included with the Faraccator, can be outfitted with stainless steel inlays and dividers (shown here) for space-efficient storage of die (“waffle”) packs.

Ergonomic LiftLatches

Lifting latch mechanism minimizes stress on wrists and desiccator hinges; non-rotary motion generates no particles inside the storage area (optional locking model shown)

Reinforced Doors with Non-adhesive Gaskets

Stainless steel door frames extend desiccator life; one-piece fused gaskets are non-outgassing, will not creep or sag

Desiccator Plenum Chamber For Uniform Gas Distribution

Multi-chamber desiccator cabinets include a perforated plenum to minimize back fill, ensure uniform gas distribution to all chambers and increase cabinet strength

Built-in Plenum Distributes Dry Gas to Each Chamber

Manual flowmeter or automated system controls nitrogen flow rates to maintain RH across entire cabinet. Built-in plenum distributes dry gas to each chamber.

Doors - The First Failure Point of a Desiccator Cabinet

Terra’s stainless steel door frames eliminate the need for internal reinforcements, which create particle surfaces and compromise cleaning. Unlike other doors with glue-on anti-bow pieces, Terra’s doors use no adhesives. This eliminates particle traps, sources of outgassing—and extends the strength and service life of the desiccator.

Available Accessories

Popular Accessories

For a full list of accessories, select a product then click Choose Accessories on that product page.
  • Dual Purge and NitroWatch
    Terra’s Dual Purge and NitroWatch relative humidity controllers maintain a low-RH set-point inside a desiccator or glove box; they provide variable purge control that ensures continuous positive pressure and eliminates nitrogen waste.
  • Relative Humidity and Temperature Data Logger
    Simply plug the USB-502 logger into any USB port on your PC to name the logger, set your start time and date, sample rate, units (ºC or ºF), and hi/lo alarms—then place in controlled atmospher chamber to start logging data.
  • Stainless Steel Divider for Faraccator Storage System, 4.5W
    Stainless steel Faraccator Tray Dividers with labeling edges allow secure, organized storage of die packs and other small parts.
  • Stainless Steel Inlays
    Stainless steel inlays (included) with slots every .375” (10mm) to permit easy insertion of dividers, creating storage bins for standard die (“waffle”) packs.
  • Nitrogen Generator
    Terra’s Nitrogen Generators provide a continuous, reliable supply of clean, dry nitrogen up to 99% pure to eliminate dependence on bulky canisters to operate desiccators and glove boxes.
  • Desiccator Cabinet Ionizing Module
    Ionizing modules are available for desiccator cabinets, glove boxes and other enclosures to ensure static-safe storage and processing (shown: ionizing unit on 2-chamber desiccator)

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