摘要:
A semiconductor package mounting structure includes a substrate (200) and a semiconductor package (100). The substrate (200) includes an opening (210) connected to a cavity of a waveguide (310). The semiconductor package (100) is mounted on the substrate (200). The semiconductor package (100) includes a semiconductor device (110) and a probe (152) connected to the semiconductor device (110). The opening (210) includes a part that overlaps the probe (152) and a part that does not overlap the semiconductor package (100).
摘要:
Included are: the first frame (1) and the second frame (2) where the plural transistor chips (1) and diode chips (12) are arranged; the first intermediate frame (5) which is adjacent to the first frame; the second intermediate frame (6) which is adjacent to the second frame; the third frame (3) which is electrically connected to the first intermediate frame and is arranged above the first frame; the fourth frame (4) which is electrically connected to the second intermediate frame and is arranged above the second frame; the electric source terminal part (22) which is provided on an extension of the first frame; the ground terminal part (23) which is provided on an extension of the fourth frame; and the output terminal part (24) which is provided on an extension to which the second frame and the third frame are electrically joined, wherein the third frame (3) and the fourth frame (4) are arranged in parallel with each other, and the electric source terminal part, the ground terminal part and the output terminal part are arranged in a manner such that induced electric voltages, which are generated in the third frame (3) and the fourth frame (4), become in reverse directions with each other.
摘要:
A main circuit wiring pattern (4) formed on an insulating layer (3) of a main circuit substrate (1) is bonded with rear surfaces of semiconductor chips (5, 6) constituting a main circuit (10a) by a bonding material, such as solder. Front surface electrodes of the semiconductor chips (5, 6) are electrically connected to lead terminals (13a) used for power by bonding wires (11) having a relatively wide diameter. The rear surface of a control semiconductor chip (9) constituting a control circuit (10b) is bonded with a control circuit wiring pattern (8b) on a control circuit substrate (7) constituted by a bottom surface portion (12-1) of a case (12), which is bonded to a rim of the main circuit substrate (1), by a bonding material. A principal surface of the control circuit substrate (7) is located at a higher position than a principal surface of the main circuit substrate (1) so that a step is formed between these principal surfaces. Whereby, a semiconductor device, which excels in noise suppression and has a structure that can be manufactured with fewer manufacturing steps and at lower cost, can be provided.
摘要:
Integrating a semiconductor component with a substrate through a low loss interconnection formed through adaptive patterning includes forming a cavity in the substrate, placing the semiconductor component therein, filling a gap between the semiconductor component and substrate with a fill of same or similar dielectric constant as that of the substrate and adaptively patterning a low loss interconnection on the fill and extending between the contacts of the semiconductor component and the electrical traces on the substrate. The contacts and leads are located and adjoined using an adaptive patterning technique that places and forms a low loss radio frequency transmission line that compensates for any misalignment between the semiconductor component contacts and the substrate leads.
摘要:
A transistor chip (1) is secured directly on to a metal plate (2), the collector of the transistor chip making direct electrical contact with the plate (2). In order to minimise the area of the plate (2) the emitter terminal (6) is arranged to overlie the collector terminal (7) with an intervening ceramic insulating layer (3). The base terminal (4) is separated from the other terminals by the chip (1) and is secured to an insulating layer (3) which in turn is secured to the plate (2). All the terminals have upright extensions for providing external connection. The device is normally enclosed in a resin material except for connecting portions of the upright terminal extensions.
摘要:
L'invention concerne un montage de diode hyperfréquence, en vue de réaliser un module préadapté. Le module selon l'invention comprend une embase (3) en cuivre, un anneau de quartz (6) et un capot (11) en cuivre : ces trois pièces, dorées au moins sur leurs faces en regard, sont assemblées par thermocompression (12,13). A l'intérieur de ce boitier, la pastille de diode (4), soudée sur l'embase (3) par l'intermédiaire d'un radiateur d'or (9) est polarisée par une connexion en faux "beam-lead" (10), étoile métallique dont les branches sont incurvées, ce qui diminue l'inductance et la capacité de cette connexion par rapport à l'embase. Le faux "beam-lead" est réalisé par métallisation d'un mésa obtenu sur une tranche de silicium. Application aux systèmes fonctionnant en hyperfréquences, notamment dans le domaine des hyperfréquences.
摘要:
Sought is to provide a semiconductor module that makes it possible to easily perform visual observation of soldering, and to perform a reflow soldering process in a state where external terminals are attached to a case. A semiconductor module includes a rectangular base plate; a substrate which is placed on the base plate and on which a circuit including a semiconductor chip and so forth is formed; a rectangular parallelepiped case made of resin that is attached to the base plate and houses the substrate within; and a plurality of external terminals lower ends of which are fixed to the substrate with upper ends thereof being exposed on a top face of the case. The case is provided with a first case opening portion and a second case opening portion that are respectively formed by cutting off a front face and a rear face of the case from an upper edge thereof along a longitudinal direction thereof; and the top face of the case between the first case opening portion and the second case opening portion includes an external terminal holding portion to hold the plurality of external terminals along the longitudinal direction with the upper ends thereof being exposed. A sealing material is injected from the first case opening portion and the second case opening portion onto a top face of the substrate, and thereby the semiconductor module is sealed.