CIRCUIT BOARD AND MANUFACTURING METHOD

A circuit board having a circuit pattern on a base plate and an additional metal layer laid and bonded on the circuit pattern, wherein the additional metal layer comprises an attachment plane portion configured to fix a semiconductor chip using solder, and an engagement uneven portion provided adjac...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: SUZUKI, Kohei, YAMAUCHI, Yuichiro, TANAKA, Ryo
Format: Patent
Sprache:eng
Schlagworte:
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Beschreibung
Zusammenfassung:A circuit board having a circuit pattern on a base plate and an additional metal layer laid and bonded on the circuit pattern, wherein the additional metal layer comprises an attachment plane portion configured to fix a semiconductor chip using solder, and an engagement uneven portion provided adjacent to the attachment plane portion, wherein the attachment plane portion is a face having unevenness smaller than the engagement uneven portion.