Utac Headquarters Pte. Ltd.

Preecha Joymak

Saravuth Sirinorakul

Antonio Bambalan Dimaano, Jr

Roel Adeva Robles

Thanawat Jaengkrajarng

Natawat Kasikornrungroj

Nataporn Charusabha

Kawin Saiubol

Wasu Aingkaew

A semiconductor device has a semiconductor die with a sensor and a cavity formed into a first surface of the semiconductor die to provide access to the sensor. A protective layer is formed on the first surface of the semiconductor die around the cavity. An encapsulant is deposited around the semiconductor die. The protective layer blocks the encapsulant from entering the cavity. With the cavity clear of encapsulant, liquid or gas has unobstructed entry into cavity during operation of the semiconductor die. The clear entry for the cavity provides reliable sensor detection and measurement. The semiconductor die is disposed over a leadframe. The semiconductor die has a sensor. The protective layer can be a film. The protective layer can have a beveled surface. A surface of the leadframe can be exposed from the encapsulant. A second surface of the semiconductor die can be exposed from the encapsulant.

Semiconductor device and method of forming protective layer around cavity of semiconductor die

Embodiments of the present invention are directed to a semiconductor package with improved thermal performance. The semiconductor package includes a package substrate comprising a top substrate surface and a bottom substrate surface. The package substrate comprises a thickness extending from the top substrate surface to the bottom substrate surface. A heat spreader is disposed on the top substrate surface. The heat spreader comprises a thickness extending from a top planar surface to a bottom planar surface of the heat spreader. The top planar surface of the heat spreader is defined with a die region and a non-die region surrounding the die region. A semiconductor die is directly disposed on the top planar surface of the heat spreader in the die region. The thickness of the heat spreader is greater relative to the thickness of the package substrate.

Semiconductor package with a heat spreader and method of manufacturing thereof

Growing community of inventors

Bangkok, Thailand

Preecha Joymak