SEMICONDUCTOR DEVICE AND A METHOD OF MANUFACTURING OF THE SEMICONDUCTOR DEVICE
Dossier Overview
Applicant
NEXPERIA B.V.
Inventor
Vegneswary Ramalingam; Heiming Shiu; Jörg Syré; Fei Wong
IPC Classification
CPC Classification
A semiconductor device is provided, including a die constituting the top layer of the semiconductor device, preferably made of silicone; a lead frame constituting the bottom layer of the semiconductor device, having high electrical conductivity in the range between 6.3×10Siemens to 1×10Siemens more preferably 1×10Siemens (electrical conductivity is normally measured in Siemens per meter S/m, range of conductivity for Cu alloy lead frames are between 5 to 6×10S/m) for example made of L/F C19210 material; a first layer formed from a metallic foam located between the lead frame and the die, with a thickness preferably in the range of 500 nm to 5000 nm more preferably 2000 nm, and with a porosity in range of 30% and 90% preferably 60% and a second layer located between the die and the lead frame being only partially in surface contact with the first layer.
Original (Chinese)
A semiconductor device is provided, including a die constituting the top layer of the semiconductor device, preferably made of silicone; a lead frame constituting the bottom layer of the semiconductor device, having high electrical conductivity in the range between 6.3×10Siemens to 1×10Siemens more preferably 1×10Siemens (electrical conductivity is normally measured in Siemens per meter S/m, range of conductivity for Cu alloy lead frames are between 5 to 6×10S/m) for example made of L/F C19210 material; a first layer formed from a metallic foam located between the lead frame and the die, with a thickness preferably in the range of 500 nm to 5000 nm more preferably 2000 nm, and with a porosity in range of 30% and 90% preferably 60% and a second layer located between the die and the lead frame being only partially in surface contact with the first layer.
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