摘要:
Memory card includes a circuit board, a component mounted on a main face of the circuit board, casing covering at least the main face of the circuit board and the component, and bittering agent retained in a roughened area provided on casing or an exposed part of the circuit board.
摘要:
Memory card (1) includes at least semiconductor chip (3), circuit board (2) with semiconductor chip (3) mounted on main surface (21), having at least rigidity reducing portion (23) formed in main surface (21) or in a linear region of surface (22) opposite to the main surface, and cover portion (71) for covering semiconductor chip (3) on main surface (21) of circuit board (2), wherein circuit board (2) has a plurality of convex regions (201) which flex in a convex shape toward main surface (21) due to rigidity reducing portion (23).
摘要:
A recess portion is formed on a board surface at a position facing a peripheral end portion of a semiconductor device so as to place a sealing-bonding use resin partially inside the recess portion. Thereby, increases of a placement area for a fillet portion (foot spreading portion) of the sealing-bonding use resin are suppressed while its inclination angle is increased. Thus, stress loads that occur to peripheral portions of the semiconductor device due to thermal expansion differences and thermal contraction differences among individual members caused by heating process and cooling process in mounting operation are relaxed, by which internal breakdown of the semiconductor device mounted structure is avoided.
摘要:
In a semiconductor device of the present invention, in order that the contact of electrodes formed on a film substrate with edge parts of a semiconductor element at the time such as when the semiconductor element is mounted thereon may be reliably prevented, in the semiconductor element mounted on at least one surface of the film substrate having the electrodes, an insulating protection part is formed at a desired position of the surface opposed to the electrodes, and the distance between the semiconductor element and the film substrate is set at not less than 10 μm.
摘要:
Memory card includes a circuit board, a component mounted on a main face of the circuit board, casing covering at least the main face of the circuit board and the component, and bittering agent retained in a roughened area provided on casing or an exposed part of the circuit board.
摘要:
A recess portion is formed on a board surface at a position facing a peripheral end portion of a semiconductor device so as to place a sealing-bonding resin partially inside the recess portion. Thereby, increases of a placement area for a fillet portion (foot spreading portion) of the sealing-bonding resin are suppressed while its inclination angle is increased. Thus, stress loads that occur to peripheral portions of the semiconductor device due to thermal expansion differences and thermal contraction differences among individual members caused by heating and cooling processes during a mounting operation are relaxed, by which internal breakdown of the semiconductor device mounted structure is avoided.
摘要:
A capacitor-equipped semiconductor device includes a semiconductor chip having a plurality of electrode terminals; a sheet-like substrate at least having a film capacitor; and a mounting substrate. The mounting substrate is provided on one side thereof with chip connection terminals and ground terminals. The chip connection terminals are disposed to correspond to the electrode terminals of the semiconductor chip. The ground terminals are disposed to correspond to the one electrode terminals of the film capacitor of the sheet-like substrate. The mounting substrate is provided on the other side thereof with external connection terminals connected to the chip connection terminals and the ground terminals and used to mount the mounting substrate on an external substrate.
摘要:
First sheet-like substrate is arranged at a region surrounded by first terminals of male connector and first circuit substrate, and second sheet-like substrate is arranged at a region surrounded by second terminals of female connector and second circuit substrate, and male connector and female connector are fitted together so that a first passive element of first sheet-like substrate and a second passive element of second sheet-like substrate configure a filter circuit.
摘要:
First sheet-like substrate is arranged at a region surrounded by first terminals of male connector and first circuit substrate, and second sheet-like substrate is arranged at a region surrounded by second terminals of female connector and second circuit substrate, and male connector and female connector are fitted together so that a first passive element of first sheet-like substrate and a second passive element of second sheet-like substrate configure a filter circuit.
摘要:
A sheet-shaped heat pipe including working fluid, a partition plate having a vapor flow path which is formed by a concave portion provided in a spacer and through which vapor of the working fluid passes and a fluid flow path provided on an inner surface of the concave portion through which the working fluid passes, a container with an opening portion, which includes the working fluid and the partition plate inside thereof, and a sealed portion for hermetically sealing the opening portion of the container. Since container has a laminated structure of at least a metal film and a resin film, it realizes a sheet-shaped heat pipe with high flexibility and little deterioration of a sealing performance.