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:
In a method for manufacturing a pressure sensor, in which a semiconductor pressure sensing element is applied to an assembly segment of a lead grid, the semiconductor pressure sensing element is electrically connected to contact segments of the lead grid. The lead grid having the semiconductor pressure sensing element is inserted into an injection molding die, and then the semiconductor pressure sensing element, in the injection molding die, is surrounded by a housing made of injection molding compound. A structure is present in the injection molding die through which a pressure feed for the semiconductor pressure sensing element is left free from the jacket of injection molding compound. A stamp is arranged in the injection molding die so as to be separated by a gap from the side of the assembly segment that is facing away from the semiconductor pressure sensing element or from the side of the semiconductor pressure sensing element that is facing away from the assembly segment. As a result of a change in the temperature of the stamp relative to the temperature of the liquefied injection molding compound, a reduction in the flow capacity of the injection molding compound in the area of the stamp is brought about and, as a result, at least a complete penetration of the injection molding compound into the gap is avoided.
摘要:
An electronic device, including a housing part having at least one closable opening and one plug-in part, the housing part accommodating a printed circuit board, which has at least one electrical and/or electronic component arranged thereon, and electrical contact elements, which are electrically connected to the plug-in part, and which have ends in the housing interior that run parallel to each other and protrude in the direction of the at least one opening, the ends being passed through contact openings of the printed circuit board and being connected conductively to the printed circuit board. To protect impact-sensitive and vibration-sensitive components, it is proposed to provide the contact elements, on a part of their length not inserted into the contact openings, with elastically deformable segments and to flexibly support the printed circuit board in the housing part by the contact element configured in this way, and, additionally, to connect it via damping elements at least indirectly to the housing part.
摘要:
A sealed housing for an electronic device has a housing bottom part which has a first contact surface; a housing top part which has a second contact surface; the housing bottom part being connectable to the housing top part; and a seal which is insertable between the housing bottom part and the housing top part so that it contacts the first contact surface and the second contact surface to form a seal when the housing bottom part and the housing top part are joined. The seal is in the form of a continuous disk.
摘要:
A method is proposed for welding a first component part to a second component part, the energy to melt melting regions being supplied by a laser beam. In this context, the laser beam is directed through the first component part, which is made of a nonabsorbing material, to the second component part. The second component part is made of a material which strongly absorbs laser beam. At least one stop is provided outside melting regions.
摘要:
A method for packaging semiconductor chips and a corresponding semiconductor chip system. The method includes making available a semiconductor chip having a diaphragm region; providing a cap over the diaphragm region, while leaving the diaphragm region open; mounting the semiconductor chip on a support frame; and providing a molded housing around the semiconductor chip and at least a partial region of the support frame for packaging the semiconductor chip.
摘要:
A lead frame device having a lead frame made of copper, copper alloy or copper compound having a die pad area, within which a chip is to be mounted, and having a multiplicity of leads, which are arranged around the die pad area; and having a die pad made of silicon which is mounted in the die pad area on the lead frame to accommodate the chip.
摘要:
A semiconductor system or sensor system in a housing which is butt-joined to a printed circuit board by soldering, at least some of the connecting surfaces not being soldered over their entire area, the connecting surfaces which are not soldered over their entire area being fixedly soldered in a first surface region to a section of a printed conductor, and in a second surface region the connecting surfaces not being fixedly connected to the printed circuit board, the securely soldered surface regions being situated closer to the semiconductor or sensor structure to be contacted than are the surface regions which are not fixedly connected to the printed circuit board.
摘要:
A semiconductor system or sensor system in a housing which is butt-joined to a printed circuit board by soldering, at least some of the connecting surfaces not being soldered over their entire area, the connecting surfaces which are not soldered over their entire area being fixedly soldered in a first surface region to a section of a printed conductor, and in a second surface region the connecting surfaces not being fixedly connected to the printed circuit board, the securely soldered surface regions being situated closer to the semiconductor or sensor structure to be contacted than are the surface regions which are not fixedly connected to the printed circuit board.
摘要:
A method for constructing an electrical circuit that includes at least one semiconductor chip encapsulated with a potting compound is disclosed. The method includes applying a galvanic layer arrangement for forming an electrochemical element on an element of the electrical circuit including the at least one semiconductor chip.