Metallic coatings. Autocatalytic (electroless) nickel-phosphorus alloy coatings. Specification and test methods

2003 ◽  
Keyword(s):  
Electroless Nickel ◽  
Test Methods ◽  
Metallic Coatings ◽  
Phosphorus Alloy

ENPLATE NI-423

Alloy Digest ◽  
1986 ◽  
Vol 35 (11) ◽  
Keyword(s):  
Wear Resistance ◽  
Physical Properties ◽  
Surface Treatment ◽  
High Speed ◽  
Chemical Reduction ◽  
Electronic Devices ◽  
Electroless Nickel ◽  
Heat Treating ◽  
Corrosion And Wear ◽  
Phosphorus Alloy

Abstract ENPLATE NI-423 is a nickel-phosphorus alloy deposited by chemical reduction without electric current. It is deposited by a stable, relatively high-speed functional electroless nickel process that produces a low-stress coating with good ductility and excellent resistance to corrosion. Its many uses include equipment for chemicals and food, aerospace components, molds and electronic devices. This datasheet provides information on composition, physical properties, and hardness. It also includes information on corrosion and wear resistance as well as heat treating, machining, joining, and surface treatment. Filing Code: Ni-343. Producer or source: Enthone Inc..

Plating reliability and high frequency testing of DuPont™ GreenTape™ 9K7 LTCC

2013 ◽  
Vol 2013 (1) ◽  
pp. 000678-000682
Author(s):  
Allan Beikmohamadi ◽  
Patricia Graddy ◽  
Deepukumar Nair ◽  
Jim Parisi ◽  
Steve Stewart
Keyword(s):  
Thick Film ◽  
High Frequency ◽  
Electroless Nickel ◽  
Test Methods ◽  
Substantial Improvement ◽  
Standard Test ◽  
Low Dielectric ◽  
Industry Standard ◽  
Joint Reliability ◽  
Surface Finishes

Low Temperature Co-fired Ceramic (LTCC) with low dielectric loss is suitable for use on microwave and millimeter wave circuits. Thick film gold or silver conductors are used as metallization on LTCC substrates. Gold prices are increasing at a rapid rate, so efforts were made to lower the dependency on gold by substituting silver with Ni/Au surface finishes as the top conductor. The external thick film silver conductors were plated using a standard Electroless Nickel Immersion Gold (ENIG) process. The Ni/Au surface finishes provides substantial improvement to fretting corrosion, environmental protection, contact resistance, wire bond strengths, solder ability and solder joint reliability. The reliability testing of DuPont™ GreenTape™ 9K7 LTCC with Ni/Au surface finishes is being conducted. The reliability test methods & conditions were chosen from well-established industry standard test protocols. This paper reports the reliability and high frequency testing results on the ENIG plated GreenTape™ 9K7 LTCC system.

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