摘要:
Magnetic tunnel junctions (MTJs) and methods of forming same are disclosed. A pinned layer is disposed in the MTJ such that a free layer of the MTJ can couple to a drain of an access transistor when provided in a magnetic random access memory (MRAM) bitcell. This structure alters the write current flow direction to align the write current characteristics of the MTJ with write current supply capability of an MRAM bitcell employing the MTJ. As a result, more write current can be provided to switch the MTJ from a parallel (P) to anti-parallel (AP) state. An anti-ferromagnetic material (AFM) layer is provided on the pinned layer to fix pinned layer magnetization. To provide enough area for depositing the AFM layer to secure pinned layer magnetization, a pinned layer having a pinned layer surface area greater than a free layer surface area of the free layer is provided.
摘要:
An integrated magnetic film enhanced inductor and a method of forming an integrated magnetic film enhanced inductor are disclosed. The integrated magnetic film enhanced inductor includes an inductor metal having a first portion and a second portion, a top metal or bottom metal coupled to the inductor metal, and an isolation film disposed one of in, on, and adjacent to at least one of the first portion and the second portion of the inductor metal. The isolation film includes a magnetic material, such as a magnetic film.
摘要:
An electrostatic discharge (ESD) protection device is fabricated in a vertical space between active layers of stacked semiconductor dies thereby utilizing space that would otherwise be used only for communication purposes. The vertical surface area of the through silicon vias (TSVs) is used for absorbing large voltages resulting from ESD events. In one embodiment, an ESD diode is created in a vertical TSV between active layers of the semiconductor dies of a stacked device. This ESD diode can be shared by circuitry on both semiconductor dies of the stack thereby saving space and reducing die area required by ESD protection circuitry.
摘要:
Thermal conductivity in a stacked IC device can be improved by constructing one or more active temperature control devices within the stacked IC device. In one embodiment, the control devices are thermal electric (TE) devices, such as Peltier devices. The TE devices can then be selectively controlled to remove or add heat, as necessary, to maintain the stacked IC device within a defined temperature range. The active temperature control elements can be P-N junctions created in the stacked IC device and can serve to move the heat laterally and/or vertically, as desired.