Electronic part

Details Electronic part Electronic part

1997-12-08

1999-09-28

Yan, Ren

Electrical connectors

Metallic connector or contact having part permanently...

Adapted to be secured to conductor formed on printed circuit...

439886, H01R 402

Patent

active

059577363

ABSTRACT:
An electronic part, particularly a microstructure contact having an overall length of the order of 5 mm for an electrical connector or the like is provided with a nickel oxide layer portion having a nickel oxide layer of the order of 50 to 5000 .ANG. in thickness formed by anode oxidizing process using a solution mainly consisting of an alkaline solution. The nickel oxide layer portion is located between a terminal portion of the electronic part to be soldered as in a surface mounting process and a contact portion continuous to and extending from the terminal portion. The nickel oxide layer has a width of the order of 0.2 to 1 mm in the longitudinal direction of the contact and has a performance preventing the flowing of molten solder, thereby effectively preventing the flowing and wicking due to wetting of solder of the solder-plated portion toward the other portions as in the surface mounting process.

REFERENCES:
patent: 3230297 (1966-01-01), Means
patent: 3989331 (1976-11-01), Hanlon
patent: 5105260 (1992-04-01), Butera
patent: 5162171 (1992-11-01), Jones
patent: 5453017 (1995-09-01), Belopolsky

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