Rhode Island vacuum pumps and components   Rhode Island vacuum pumps and components

Wintek Corporation: Liquid Ring Vacuum Pump Experts        Rhode Island vacuum pumps and components
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- 155 Industrial Drive, Narragansett, RI 02882, USA

Richard B. Sawyer, Chairman & President, email, Tel. +1 401-789-0259
products:   99.995% + copper sputtering targets and backing plates

We specialize in producing copper (99.995% + pure) sputtering targets. These are machined on all critical sides to eliminate surface microporosity and fluocarbon imbedment.
Targets are produced in a wide variety of shapes and sizes including round, square, rectangle, inset, delta and monolithic (one piece) target/backing plate designs. We do offer other materials as well including nickel, aluminum, silver and zinc—as long as 100"!
RBA manufactures copper backing plates for many systems including MRC, Materials Science, Sierra Applied Sciences, US, Inc.'s Mighty Mak, CPA, Perkin-Elmer, and Leybold. We also produce custom backing plates—as long as 100"!
RBA also invites inquiries for contract machining of customer supplied materials. These materials can be virtually anything from 99.999 aluminum to zirconium.

Meller Optics Meller Optics, Inc. - www.melleroptics.com
- 120 Corliss St, Providence, RI 02904, USA

email, Tel.
products:   Sapphire Viewport Windows

Custom engineered and fabricated sapphire viewport windows that can be metalized, brazed and sealed into Kovar® and stainless steel sleeves are available from Meller Optics, Inc. of Providence, Rhode Island.

Meller Sapphire Viewport Windows feature Moh 9 hardness, which is second only to diamond, and can operate from UHV to 10,000 psi at temperatures from cryogenic to 1,000°C, depending upon configuration. Custom fabricated to assure a reliable seal, they are manufactured to specification with stepped edges and elliptical edge shaping, holes, slots, and wedges for mounting.

Available in flat and spherical configurations from 1/4” to 10” dia. and 1/2 mm to 1” thick with A/R coatings, Meller Sapphire Viewport Windows feature flatness of 0.5 fringes HeNe and parallelism from 20 to 2 arc/secs. Resistant to chemicals (fluorine to 300°C) and most acids, these sapphire viewports are impervious to water, blowing dirt, and sand.

Spectrum Thermal Processing Spectrum Thermal Processing - www.spectrumtp.com
- 818 Wellington Ave., Cranston, RI 02910, USA

email, Tel.

Spectrum Thermal Processing routinely brazes components for the Aerospace, Medical, Military and Petroleum/Chemical Industries.
products:   Vacuum Brazing

We provide batch vacuum brazing with high temperatures up to 2150°F. We process in both batch and continuous furnaces.

Spectrum utilizes high purity argon and nitrogen for back filling and quenching.

AIM Specialty Materials AIM Specialty Materials USA - www.aimspecialty.com
- 25 Kenney Drive, Cranston, RI 02920, USA

Brian Oneill, email, Tel. +1 401-463-5605

AIM Specialty Materials has been a leading manufacturer of high-quality metals and chemistries since 1936. AIM Specialty Materials is ISO 9001:2000 certified with manufacturing, distribution and support facilities located throughout the world.
products:   Sputtering Targets

AIM Specialty Materials specializes in alloys of Indium, Tin, Lead, Bismuth, Cadmium, Gold and Gallium for a wide range of joining applications.
These materials come in a variety of forms, including preforms, wire, foil & ribbon, seals, pastes, chemicals and compounds.
Another requirement of the targeting industry is the ability to bond a target material to a backing plate prior to the sputtering process. Indium’s unique properties lend itself to be an excellent bonding glue for this application. AIM offers pure Indium in bar form for your convenience.

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