Robert Boschgmbh

Wallace Chuang

Ken Chang

Eckart Schellkes

Chia-Yu Liu

Yee-Wen Yen

The present utility model discloses a package assembly of a sensor, comprising: a redistribution layer having a first face and a second face that are opposite to each other, and a first via that penetrates the first face and the second face; a first die electrically connected to the first face of the redistribution layer; a sensing element electrically connected to the first face of the redistribution layer; a cover body located between the redistribution layer and the sensing element, wherein the cover body has a second via that penetrates the cover body, and the second via communicates with the first via; and a moulding compound comprising a third face and a fourth face that are opposite to each other, wherein the moulding compound encapsulates the first die and the sensing element on the side of the first face of the redistribution layer, and the third face of the moulding compound is combined with the first face of the redistribution layer. The package assembly of the sensor allows more components to be packaged together, provides a better structural support and heat distribution, and reduces the volume and costs of the package assembly.

Sensor and package assembly thereof

A solder paste includes a first solder alloy powder in an amount ranging from 30% to 95% by weight. The first solder alloy powder includes a first solder alloy with a solidus temperature of 200° C. to 260° C. The first solder alloy includes an Sn—Cu alloy or an Sn—Cu—Ag alloy. The solder paste further includes a second solder alloy powder in an amount ranging from 5% to 70% by weight, and a solder flux. The second solder alloy powder includes a second solder alloy with a solidus temperature below 250° C. The solder paste has a variable melting point. In multiple reflow soldering, a remelting of the solder paste is inhibited under different temperature conditions so that no functional failure occurs during assembly and/or packaging of PCBs or electronic devices due to melting of solder.

Sn—Cu mixed alloy solder paste, method of making the same and soldering method

A sensor includes: a redistribution layer comprising a first face and a second face opposite to each other; a first die electrically connected to the first face of the redistribution layer; a molding compound comprising a third face and a fourth face opposite to each other, wherein the third face of the molding compound is combined with the first face of the redistribution layer, and the molding compound encapsulates the first die on the side of the first face of the redistribution layer; and a sensing element electrically connected to the redistribution layer. The package assembly of the sensor allows more elements to be packaged together, and provides a better structural support or provides a better heat distribution for the package assembly, and at the same time, reduces the volume and costs of the entire package assembly.

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Taipei, Taiwan

Wallace Chuang