Dev. Ex.

Ceramic substrate bonding for inner ear hearing aids

A medical cochlear implant ASIC is mounted on a ceramic substrate with a flip chip bonding.

specification

Special Stipulations High reliability/MONSTER PAC® 170℃ low temperature bonding

Conventional method

Flip chip bonding of LSI chip on board
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Bonding on cochlear implant board increase to solder melting temperature (260℃)
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LSI chip side solder remelt
Open/short defect
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Low yield / Poor quality

Conventional method

MONSTER PAC® Method

MONSTER PAC®️ Method

Low-temperature and low-load MONSTER PAC®️ 170℃ bonding
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For mounting by conductive paste and NCP, raised to solder melting temperature (260℃) does not remelt
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No bonding defects, no open / short defects
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High yield, high quality

※High reliability package for medical devices