Lead frames.[ILLUSTRATION OMITTED] Lead frames for a wide variety of applications including semiconductors, glass-to-metal seals and relays, and are also used in medical applications such as hearing aids Hearing Aids Definition A hearing aid is a device that can amplify sound waves in order to help a deaf or hard-of-hearing person hear sounds more clearly. , Base materials such as kovar, nickel-iron alloys, copper alloys Copper alloys are alloys with Copper as their principial component. They have high resistance to corrosion. Due to its high electric conductivity, pure electrolytic copper is used mostly for making of electrical cables. , and pure nickel nickel, metallic chemical element; symbol Ni; at. no. 28; at. wt. 58.69; m.p. about 1,453°C;; b.p. about 2,732°C;; sp. gr. 8.902 at 25°C;; valence 0, +1, +2, +3, or +4. , PEI can plate lead frames in their entirety or selectively. Lead-free plating materials include silver, nickel, gold, or tin, depending on the customer's specific electrical and thermal conductivity thermal conductivity A measure of the ability of a material to transfer heat. Given two surfaces on either side of the material with a temperature difference between them, the thermal conductivity is the heat energy transferred per unit time and per unit requirements. WHO: Photofabrication Engineering WEB: photofabrication.com |
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