Memory-Module with an increased density for mounting semiconductor chips
View Patent ↗The invention is intended to increase the density for mounting the semiconductor chips on a memory-module, to increase the capacity of the memory-module, and to realize the memory-module capable of coping with high-speed buses. The memory-module comprises a plurality of WPPs having protruded terminals as external terminals and wiring portions for expanding the pitch among the protruded terminals to be wider than the pitch among the bonding electrodes of semiconductor chips, TSOPs having semiconductor chips, outer leads as external terminals, and are mounted via the outer leads that are electrically connected to the bonding electrodes of the semiconductor chips, and a module board supporting the WPPs and the TSOPs, wherein the WPPs and the TSOPs are mounted by the simultaneous reflowing in a mixed manner on the module board.
1. A memory-module comprising;
protruded terminal semiconductor devices each having a semiconductor chip, bump electrodes as external terminals, and wiring portions for expanding pitches among the bump electrodes to be wider than pitches among bonding electrodes formed on the semiconductor chip;
a lead terminal semiconductor device having outer leads as external terminals; and
a module board supporting the protruded terminal semiconductor devices and the lead terminal semiconductor device,
wherein the protruded terminal semiconductor devices are mounted via the bump electrodes on the module board and the lead terminal semiconductor device is mounted via the outer leads on the module board,
wherein the protruded terminal semiconductor devices include DRAMs,
wherein the protruded terminal semiconductor devices are arranged in a line along a lengthwise direction of the module board, wherein the lead terminal semiconductor device includes a PLL or a register, and
wherein the lead terminal semiconductor device is arranged among the protruded terminal semiconductor devices.
2. A memory-module according to claim 1 ,
wherein the protruded terminal semiconductor devices are arranged in a sequence on both sides of the lead terminal semiconductor device on one surface of the module board.
3. A memory-module according to claim 1 ,
wherein each of the protruded terminal semiconductor devices has a rectangular shape on a plane, and
wherein the protruded terminal semiconductor devices are arranged such that a short side of each of the protruded terminal semiconductor devices is opposite a long side of the module board.
4. A memory-module according to claim 1 ,
wherein a size of each of the protruded terminal semiconductor devices is smaller than that of the lead terminal semiconductor device.
5. A memory-module according to claim 1 ,
wherein the lead terminal semiconductor device has a rectangular shape on a plane, and
wherein the lead terminal semiconductor device is arranged such that a short side of the lead terminal semiconductor devices is opposite a long side of the module board.
6. A memory-module according to claim 1 ,
further comprising a plurality of said lead terminal semiconductor devices,
wherein each of the lead terminal semiconductor devices has a rectangular shape on a plane, and
wherein the lead terminal semiconductor devices are arranged such that a long side of each of the lead terminal semiconductor devices is opposite a long side of the module board.
7. A memory-module according to claim 6 ,
wherein a part of each of the lead terminal semiconductor devices is off the line of the protruded terminal semiconductor devices.
8. A memory-module according to claim 1 ,
wherein the wiring portions are rewirings in an area of the semiconductor chip.
9. A memory-module comprising:
protruded terminal semiconductor devices each having a semiconductor chip, bump electrodes as external terminals and wiring portions for expanding pitches among the bump electrodes to be wider than pitches among bonding electrodes formed on the semiconductor chip;
a lead terminal semiconductor device having outer leads as external terminals; and
a module board supporting the protruded terminal semiconductor devices and the lead terminal semiconductor device,
wherein the protruded terminal semiconductor devices are mounted via the bump electrodes on the module board and the lead terminal semiconductor device is mounted via the outer leads on the module board,
wherein the protruded terminal semiconductor devices include DRAMs,
wherein the protruded terminal semiconductor devices are arranged in a line along a lengthwise direction of the module board wherein the lead terminal semiconductor device includes a PLL or a register, and
wherein the lead terminal semiconductor device is off the line of the protruded terminal semiconductor devices.
10. A memory-module according to claim 9 ,
wherein a size of the lead terminal semiconductor device is smaller than that of each of the protruded terminal semiconductor devices.
11. A memory-module according to claim 9 ,
wherein the outer leads serving as the external terminals of the lead terminal semiconductor device are arranged protruding in a direction perpendicular to the lengthwise direction.
12. A memory-module according to claim 9 ,
wherein each of the protruded terminal semiconductor devices has a rectangular shape on a plane, and
wherein the protruded terminal semiconductor devices are arranged such that a short side of each of the protruded terminal semiconductor devices is opposite a long side of the module board.
13. A memory-module according to claim 9 ,
wherein the wiring portions are rewirings in an area of the semiconductor chip.
14. A memory-module comprising:
protruded terminal semiconductor devices each having a semiconductor chip, bump electrodes as external terminals, and wiring portions for expanding pitches among the bump electrodes to be wider than pitches among bonding electrodes formed on the semiconductor chip;
lead terminal semiconductor devices having outer leads as external terminals; and
a module board supporting the protruded terminal semiconductor devices and the lead terminal semiconductor devices,
wherein the protruded terminal semiconductor devices are mounted via the bump electrodes on the module board and the lead terminal semiconductor devices are mounted via the outer leads on the module board,
wherein the protruded terminal semiconductor devices include DRAMs,
wherein each of the protruded terminal semiconductor devices has a rectangular shape on a plane,
wherein the protruded terminal semiconductor devices are arranged in a line along a lengthwise direction of the module board and along a direction of a short side of each of the protruded terminal semiconductor devices,
wherein each of the lead terminal semiconductor devices has a rectangular shape on a plane, wherein the lead terminal semiconductor device includes a PLL or a register, and
wherein the lead terminal semiconductor devices are arranged such that a long side of each of the lead terminal semiconductor devices is opposite a long side of the module board.
15. A memory-module according to claim 14 ,
wherein the protruded terminal semiconductor devices are arranged in a sequence on both sides of the lead terminal semiconductor devices on one surface of the module board.
16. A memory-module according to claim 14 ,
wherein a part of each of the lead terminal semiconductor devices is off the line of the protruded terminal semiconductor devices.
17. A memory-module according to claim 14 ,
wherein the wiring portions are rewirings in an area of the semiconductor chip.