Active solid-state devices (e.g. – transistors – solid-state diode – Combined with electrical contact or lead – Ball or nail head type contact – lead – or bond
Patent
1995-02-09
1998-02-10
Saadat, Mahshid D.
Active solid-state devices (e.g., transistors, solid-state diode
Combined with electrical contact or lead
Ball or nail head type contact, lead, or bond
257753, 257762, 257737, 257673, H01L 2348, H01L 2352, H01L 2940
Patent
active
057172552
ABSTRACT:
A semiconductor device has a semiconductor element, an output terminal coupled to the semiconductor element and a thin metal member or foil secured to an output terminal. A protective layer covers the semiconductor element including the periphery of the metal foil to define an opening located at the metal foil. By covering the periphery of the metal foil, the protective layer secures the metal foil to the semiconductor element. A lead element is affixed to the metal foil by soldering through the opening. The resulting structure increases the adhesion of the lead element. Furthermore, because the protective film covers and seals the periphery of the metal foil, the advance of moisture into the inside of the semiconductor device is retarded. Accordingly the moisture resistance of the semiconductor device is improved.
REFERENCES:
patent: 3868724 (1975-02-01), Perrino
patent: 4290079 (1981-09-01), Carpenter et al.
patent: 4486945 (1984-12-01), Aigoo
patent: 4521476 (1985-06-01), Asai et al.
patent: 4733289 (1988-03-01), Tsurumaru
patent: 4974057 (1990-11-01), Tazima
patent: 5083187 (1992-01-01), Lamson et al.
patent: 5107325 (1992-04-01), Nakayoshi
patent: 5133810 (1992-07-01), Morizane et al.
patent: 5438222 (1995-08-01), Yamazaki
Haga Takahiro
Kaido Yoshinori
Yasuda Takayoshi
Arroyo T. M.
Saadat Mahshid D.
Sanyo Electric Co,. Ltd.
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