Etching Quality
Chemical Milling Grade Metal Foil

NEA Certificate of RoHS and WEEE Compliance (PDF)

National Electronic Alloys Inc. is now stocking three grades of metal foil for SMT Stencil Manufacturing , Alloy 304 full hard stainless steel , Lo Expansion Alloy 36 (Invar), and Alloy 42 (Shadow Mask Grade)

All grades are available in either coil form or sheets cut to size.

Alloy 304 SS is available 24" wide in .002", .003", .004"*, .005"*, .006"*, .007"*, .008", .010", .012" , .015", .020", and .025" thickness.

*.004", .005", .006", and ..007" are available in Stress Releived state (SRA).

Alloy 36 (Invar) is available 24" wide in .004", .005", .006", .007", .008", 010", and 015" thickness. (Matte Finish)

Alloy 42 (Shadow Mask Grade) 12" wide, in .004", .005", .006", .007", .008", .010", .014", .015" thickness.

Alloy 42 (Shadow Mask Grade) 16" wide, in .005", .010" and .014" thickness.

Other thickness and widths are also available upon request.

Complete material specifications can be found at the web sites shown below.

National Electronic Alloys, Inc. National Electronic Alloys, Inc. West

5 Fir Court, Oakland, NJ 07436 1335 E. Warner Ave., Santa Ana, CA 92705

Tel: 800-524-4309 Tel: 877-NEA-WEST

Fax: 201-337-9698 Fax: 714-556-5562

www.nealloys.com  

www.nealloyswest.com

Contact us with your requirements. Stocking programs can be set up to ensure material availability for your production needs.

                                                                                                                             NEW PRODUCT

                                        WWW.RST GAUGE.COM

RST Gauge LLC has developed an economical system to measure the tension on a mounted SMT stencil foil. For many years quality assurance managers have been asking for tension gauges that will give them accurate results on SMT stencils. Since stainless steel foil has a much higher modulus of elasticity than polyester screen fabrics, conventional mesh tension meters do not give accurate readings. The proximity of the mounted foils to the edge of the polyester screens prohibits accurate readings of the mesh tension as well. 

Using the SMT Foil Tension Analyzer will allow quality control personnel to take readings on incoming stencils, and to check them after cleanings to assure that they are maintaining consistent tension. Readings should be taken in the middle of the foil. Readings taken in corners will show higher and should not be considered. 

Measurements with this device are in one one-thousandth of an inch (0.001”).  Tolerance is +/- .001”

A conversion chart is provided to allow deflection readings in .001” to be converted to N/cm.

Please note these readings are considered to be a relative measurement on a given stencil. Foils of different thickness on the same size frame will show different deflections.  For example a 6 mil foil will deflect less than a 4 mil foil, thus resultant tension will be considered higher. 

Each stencil should be checked for tension upon receipt. Readings can then be taken periodically after cleanings. If a dramatic change in tension is noticed, then the stencil should be examined for damage.  Possible causes are foil wear (from squeegee pressure), torn mesh, and failed bonds.

                                                                                                                                                                 Made in the USA

                                                                                                                                                               www.rstgauge.com

Represented by: Four Points, SMT Stencil Supply , Hobe Sound, FL 33455
****
Telephone:772-288-3271Fax: 772-288-4520