摘要:
A method for producing a pressure sensor, in which a semiconductor pressure pick-up is mounted on a mounting section of a lead grid, in particular a leadframe. The semiconductor pressure pick-up is electrically connected to contact sections of the lead grid. The lead grid, together with the semiconductor pressure pick-up, is inserted into an injection molding die. A die part is brought into contact at the side of the semiconductor pressure pick-up facing away from the mounting section or at side of the mounting section facing away from the semiconductor pressure pick-up. The semiconductor pressure pick-up in the injection molding die is subsequently enclosed by a housing made of mold compound. In order to prevent the mounting section from giving way, it is proposed to clamp the mounting section of the lead grid in the injection molding die when producing the housing.
摘要:
The present invention provides a composite magnetic body containing metallic magnetic powder and thermosetting resin and having a packing ratio of the metallic magnetic powder of 65 vol % to 90 vol % and an electrical resistivity of at least 104 &OHgr;·cm. When a coil is embedded in this composite magnetic body, a miniature magnetic element can be obtained that has a high inductance value and is excellent in DC bias characteristics.
摘要:
An In The Ear (ITE) microphone improves the acoustic response of a Behind The Ear (BTE) Implantable Cochlear Stimulation (ICS) system during telephone use. An acoustic seal provided by holding a telephone earpiece against the ear provides improved coupling of low frequency (up to about 1 KHz) sound waves, sufficient to overcome losses due to the near field acoustic characteristics common to telephones. In a preferred embodiment, the ITE microphone is connected to a removable ear hook of the BTE ICS system by a short bendable stalk.
摘要:
A waterproof seal feeding machine is provided to feed waterproof cylindrical seals to a fitting position on an axis of an electric wire to fit the seals onto outer peripheries of end portions of the electric wire. The waterproof seal feeding machine includes holders that open and close at the fitting position. The waterproof seal feeding machine further includes a seal cavity that receives the seal at the fitting position when the holders are closed. A passage forming member forms a feeding passage to feed the seal into the seal cavity with a posture to receive the electric wire. A lock brings the seal to a locked state in cooperation with the holders and releases the locked state after insertion of the electric wire.
摘要:
A method is provided for planarization of structures which minimizes step heights, reduces process steps, improves cleanliness, and provides increased ease of debond. Structures are placed with working surfaces facing down onto an adhesive layer such that structures remain fixed during heating. A bi-layer encapsulating film is used to achieve planarization. A carrier is bi-laminated with a thermoplastic film layer followed by a chemically inert protective polymer film layer that can withstand etch and cleaning processes. The thermoplastic layer is laminated on top of the carrier; the polymer layer is laminated on top of the joined thermoplastic layer and carrier. The carrier with bi-layer film is then placed onto the backside of the structures to resist chemical attack from the front side during photostrip and enable planarization. When heat is applied, the bi-layer encapsulating film melts and pushes the polymer layer into the gaps between structures thereby achieving complete planarization.
摘要:
System for providing an open-cavity semiconductor package. The system includes a method for wire bonding a finger sensor die to an external circuit. The finger sensor die includes a sensor array having one or more die contacts that are wire bonded to one or more external contacts of the external circuit so that a usable portion of the sensor array is maximized. The method comprises steps of forming a ball at a first end of a bonding wire, forming an electrically conductive connection between the ball and a selected external contact of the external circuit, extending the bonding wire to a selected die contact so as to form a wire loop having a low loop height, and forming an electrically conductive stitch connection between a second end of the bonding wire and the selected die contact.
摘要:
The present invention provides a composite magnetic body containing metallic magnetic powder and thermosetting resin and having a packing ratio of the metallic magnetic powder of 65 vol % to 90 vol % and an electrical resistivity of at least 104 &OHgr;·cm. When a coil is embedded in this composite magnetic body, a miniature magnetic element can be obtained that has a high inductance value and is excellent in DC bias characteristics.
摘要:
The present invention provides a resin-sealed semiconductor IC package of a large integration size having a size substantially equal to that of its component semiconductor IC chip. The resin-sealed semiconductor IC package comprises a semiconductor IC chip, a plurality of leads arranged on the semiconductor IC chip and having end portions bent so as to extend perpendicularly to the major surface of the semiconductor IC chip, a resin molding sealing the semiconductor IC chip and the leads therein so that the tips of the end portions of the leads are exposed on one surface thereof, and conductive elements connected respectively to the exposed tips of the leads.
摘要:
A method of manufacturing a small, thin card-type storage device is capable of easily manufacturing a frame for the storage device from a variety of resin materials without molding a very thin recessed bottom of the supporter. The method prepares a card-type support frame member from resin and a sheet material, cuts the sheet material into the size of the support frame member, to form a support sheet, bonds the support sheet to a bottom surface of the support frame member, to form a frame, and fits a memory module to be fixed in an opening of the support frame member in the frame, thereby completing the card-type storage device.
摘要:
A mold for taped lead frame assemblies is provided. The mold has a mold cavity large enough to hold an entire lead frame assembly. A taped lead frame assembly is placed completely in the mold cavity. A cover is used to cover the mold cavity. The cover is spaced apart from the taped lead frame assembly. A riser may be used to provide the spacing between the cover and the taped lead frame assembly, so that the cover does not contact the taped lead frame assembly. An encapsulation material is placed in the mold cavity and then hardened. The encapsulated taped lead frame assembly is then removed from the mold and singulated.