PRESS FIT (COMPLIANT) TERMINAL AND OTHER CONNECTORS WITH TIN-SILVER COMPOUND
First Claim
1. An electrical connector configured to connect to a substrate and mitigate whisker formation, the electrical connector comprising:
- a solderless press-fit connector configured as a connector for mechanical and electrical connection to a substrate by insertion into a hole in the substrate; and
a layer of tin-silver material disposed on an outer surface of the press-fit connector, the layer of tin-silver material mitigating formation of whiskers extending from the connector.
6 Assignments
0 Petitions
Accused Products
Abstract
A tin-silver press-fit interconnect which includes a press-fit terminal having a coating or finish of a tin-silver compound for use with a terminal receiving device. The tin-silver compound serves to prevent the formation of tin whiskers which appear most frequently in pure tin coated electrical components under mechanical stress and which make the electronic device susceptible to short circuits. The tin-silver compound may include between 85 and 99.5% weight of tin and between 0.5 and 15% weight of silver and is applied at a thickness range between 0.4 and 5 microns using a technique such as electroplating, hot dip or immersion.
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Citations
21 Claims
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1. An electrical connector configured to connect to a substrate and mitigate whisker formation, the electrical connector comprising:
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a solderless press-fit connector configured as a connector for mechanical and electrical connection to a substrate by insertion into a hole in the substrate; and a layer of tin-silver material disposed on an outer surface of the press-fit connector, the layer of tin-silver material mitigating formation of whiskers extending from the connector. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of mitigating whisker formation during the connection of an electrical component and a terminal receiving device, the method comprising:
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providing a terminal receiving device with a terminal receiving portion; providing an electrical component with an electrical terminal configured for connection to the terminal receiving portion of the terminal receiving device; disposing a layer of tin-silver material on an outer surface of the electrical terminal such that whisker formation in the terminal receiving device is mitigated; and connecting the electrical terminal to the terminal receiving portion such that the whisker formation is mitigated when the electrical terminal is connected to the terminal receiving portion. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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Specification