摘要:
Herein disclosed is a semiconductor integrated circuit for testing test data of two kinds of non-inverted and inverted statuses of all bits by itself with a prospective data of one kind to compress and output the test results. The semiconductor integrated circuit includes a decide circuit 25 for deciding a first status, in which the prospective data latched by a pattern register and the read data of a memory cell array are coincident, a second status, in which the read data is coincident with the logically inverted data of the prospective data, and a third statuses other than the first and second statuses through an exclusive OR gate to generate signals of 2 bits capable of discriminating the individual statuses. These statuses are informed to the outside of the semiconductor integrated circuit in accordance with high- and low-levels and a high-impedance.
摘要:
A semiconductor device comprising a resin mold, two semiconductor chips positioned inside the resin mold and having front and back surfaces and external terminals formed on the front surfaces, and leads extending from the inside to the outside of the resin mold, wherein each of said leads is branched into two branch leads in at least the resin mold, the one branch lead is secured to the surface of the one semiconductor chip and is electrically connected to an external terminal on the surface thereof through a wire, the other branch lead is secured to the surface of the other semiconductor chip and is electrically connected to an external terminal on the surface thereof through a wire, and the two semiconductor chips are stacked one upon the other, with their back surfaces opposed to each other.
摘要:
Two memory chips each being subjected to memory accesses in 2-bit units are assembled into a stacked structure by placing their back surfaces one over the other, so as to make memory accesses in 4-bit units. A memory module is so constructed that a plurality of such semiconductor storage devices, in each of which two memory chips each being subjected to memory accesses in 2-bit units are assembled into a stacked structure by placing their back surfaces one over the other, so as to make memory accesses in 4-bit units, are mounted on a mounting circuit board which is square and which is formed with electrodes along one latus thereof.
摘要:
A semiconductor device comprising a resin mold, two semiconductor chips positioned inside the resin mold and having front and back surfaces and external terminals formed on the front surfaces, and leads extending from the inside to the outside of the resin mold, wherein each of said leads is branched into two branch leads in at least the resin mold, the one branch lead is secured to the surface of the one semiconductor chip and is electrically connected to an external terminal on the surface thereof through a wire, the other branch lead is secured to the surface of the other semiconductor chip and is electrically connected to an external terminal on the surface thereof through a wire, and the two semiconductor chips are stacked one upon the other, with their back surfaces opposed to each other.
摘要:
A semiconductor device comprising a resin mold, two semiconductor chips positioned inside the resin mold and having front and back surfaces and external terminals formed on the front surfaces, and leads extending from the inside to the outside of the resin mold, wherein each of said leads is branched into two branch leads in at least the resin mold, the one branch lead is secured to the surface of the one semiconductor chip and is electrically connected to an external terminal on the surface thereof through a wire, the other branch lead is secured to the surface of the other semiconductor chip and is electrically connected to an external terminal on the surface thereof through a wire, and the two semiconductor chips are stacked one upon the other, with their back surfaces opposed to each other.
摘要:
A semiconductor device is formed by laminating two semiconductor chips with the rear surfaces thereof provided face to face. Each semiconductor chip is provided with an outer lead for clock enable to which the clock enable signal and chip select signal are individually input. On the occasion of making access to one semiconductor chip, the other semiconductor chip is set to the low power consumption mode by setting the clock enable signal and chip select signal to the non-active condition.
摘要:
A semiconductor device comprising a resin mold, two semiconductor chips positioned inside the resin mold and having front and back surfaces and external terminals formed on the front surfaces, and leads extending from the inside to the outside of the resin mold, wherein each of said leads is branched into two branch leads in at least the resin mold, the one branch lead is secured to the surface of the one semiconductor chip and is electrically connected to an external terminal on the surface thereof through a wire, the other branch lead is secured to the surface of the other semiconductor chip and is electrically connected to an external terminal on the surface thereof through a wire, and the two semiconductor chips are stacked one upon the other, with their back surfaces opposed to each other.
摘要:
A semiconductor device comprising a resin mold, two semiconductor chips positioned inside the resin mold and having front and back surfaces and external terminals formed on the front surfaces, and leads extending from the inside to the outside of the resin mold, wherein each of said leads is branched into two branch leads in at least the resin mold, the one branch lead is secured to the surface of the one semiconductor chip and is electrically connected to an external terminal on the surface thereof through a wire, the other branch lead is secured to the surface of the other semiconductor chip and is electrically connected to an external terminal on the surface thereof through a wire, and the two semiconductor chips are stacked one upon the other, with their back surfaces opposed to each other.
摘要:
A semiconductor device comprising a resin mold, two semiconductor chips positioned inside the resin mold and having front and back surfaces and external terminals formed on the front surfaces, and leads extending from the inside to the outside of the resin mold, wherein each of said leads is branched into two branch leads in at least the resin mold, the one branch lead is secured to the surface of the one semiconductor chip and is electrically connected to an external terminal on the surface thereof through a wire, the other branch lead is secured to the surface of the other semiconductor chip and is electrically connected to an external terminal on the surface thereof through a wire, and the two semiconductor chips are stacked one upon the other, with their back surfaces opposed to each other.
摘要:
A semiconductor device is formed by laminating two semiconductor chips with the rear surfaces thereof provided face to face. Each semiconductor chip is provided with an outer lead for clock enable to which the clock enable signal and chip select signal are individually input. On the occasion of making access to one semiconductor chip, the other semiconductor chip is set to the low power consumption mode by setting the clock enable signal and chip select signal to the non-active condition.