Abstract: Disclose is a chip package having an adhesive protection piece compliantly attached on the chip sensing surface, comprising a substrate, a main chip disposed on the substrate, an adhesive protection piece covering the main chip and an encapsulant encapsulating the main chip. The main chip has a chip sensing surface facing to a direction away from the substrate and a connection terminal electrically connected to the substrate. The adhesive protection piece essentially consists of a pick-and-place sheet and a die-bonding layer. The encapsulant completely encapsulates the die-bonding layer without covering the external surface of the pick-and-place sheet. The adhesive protection piece is compliantly attached to the chip sensing surface by pick-and-place processes so that the die-bonding layer is attached to the chip sensing surface with a constant adhesive gap.

Abstract: A knife gate valve for specific environments comprises a knife valve with a body, a hand wheel, a yoke sleeve, a gland packing, a gland bushing, a stem, a wedge gate, seating surfaces and the like. All internal components of the device are provided with a high quality elastomeric liner. This surface is present on wetted surfaces such as body, seat and wedge surfaces exposed to the controlled material. This feature provides corrosion resistance, long life, and reduces leakage when compared to conventional valves. Its new style of internal design provides waterproof resistance for virtually types of industrial applications.