公开(公告)号：US20190334079A1

公开(公告)日：2019-10-31

申请号：US16463821

申请日：2016-12-30

Applicant: Intel Corporation

Inventor： MD Tofizur RAHMAN ,  Christopher J. WIEGAND ,  Kaan OGUZ ,  Justin S. BROCKMAN ,  Daniel G. OUELLETTE ,  Brian MAERTZ ,  Kevin P. O'BRIEN ,  Mark L. DOCZY ,  Brian S. DOYLE ,  Oleg GOLONZKA ,  Tahir GHANI

IPC: H01L43/02 ,  H01L43/10 ,  H01L43/12 ,  G11C11/16

Abstract: A material layer stack for a pSTTM memory device includes a magnetic tunnel junction (MTJ) stack, a oxide layer, a protective layer and a capping layer. The MTJ includes a fixed magnetic layer, a tunnel barrier disposed above the fixed magnetic layer and a free magnetic layer disposed on the tunnel barrier. The oxide layer, which enables an increase in perpendicularity of the pSTTM material layer stack, is disposed on the free magnetic layer. The protective layer is disposed on the oxide layer, and acts as a protective barrier to the oxide from physical sputter damage during subsequent layer deposition. A conductive capping layer with a low oxygen affinity is disposed on the protective layer to reduce iron-oxygen de-hybridization at the interface between the free magnetic layer and the oxide layer. The inherent non-oxygen scavenging nature of the conductive capping layer enhances stability and reduces retention loss in pSTTM devices.

公开(公告)号：US20190036010A1

公开(公告)日：2019-01-31

申请号：US16072301

申请日：2016-04-01

Applicant: Intel Corporation

Inventor： Brian MAERTZ ,  Christopher J. WIEGAND ,  Daniel G. OEULLETTE ,  MD Tofizur RAHMAN ,  Oleg GOLONZKA ,  Justin S. BROCKMAN ,  Tahir GHANI ,  Brian S. DOYLE ,  Kevin P. O'BRIEN ,  Mark L. DOCZY ,  Kaan OGUZ

IPC: H01L43/02 ,  H01L27/22 ,  H01L43/08 ,  H01L43/10 ,  H01L43/12

CPC classification number: H01L43/02 ,  H01L27/228 ,  H01L43/08 ,  H01L43/10 ,  H01L43/12

Abstract: An apparatus including an array of memory cells arranged in a grid defined by word lines and bit lines in a generally orthogonal orientation relative to one another, a memory cell including a resistive memory component and an access transistor, wherein the access transistor includes a diffusion region disposed at an acute angle relative to an associated word line. A method including etching a substrate to form a plurality of fins each including a body having a length dimension including a plurality of first junction regions and a plurality of second junction regions that are generally parallel to one another and offset by angled channel regions displacing in the length dimension an end of a first junction region from the beginning of a second junction region; removing the spacer material; and introducing a gate electrode on the channel region of each of the plurality of fins.

公开(公告)号：US20190035690A1

公开(公告)日：2019-01-31

申请号：US16020722

申请日：2018-06-27

Applicant: Intel Corporation

Inventor： Srijit MUKHERJEE ,  Christopher J. WIEGAND ,  Tyler J. WEEKS ,  Mark Y. LIU ,  Michael L. HATTENDORF

IPC: H01L21/8238 ,  H01L29/66 ,  H01L29/49 ,  H01L27/11 ,  H01L27/092 ,  H01L21/28 ,  H01L27/088 ,  H01L21/8234

Abstract: Integrated circuits including MOSFETs with selectively recessed gate electrodes. Transistors having recessed gate electrodes with reduced capacitive coupling area to adjacent source and drain contact metallization are provided alongside transistors with gate electrodes that are non-recessed and have greater z-height. In embodiments, analog circuits employ transistors with gate electrodes of a given z-height while logic gates employ transistors with recessed gate electrodes of lesser z-height. In embodiments, subsets of substantially planar gate electrodes are selectively etched back to differentiate a height of the gate electrode based on a given transistor's application within a circuit.

公开(公告)号：US20190027679A1

公开(公告)日：2019-01-24

申请号：US16070415

申请日：2016-03-30

Applicant: Intel Corporation

Inventor： Daniel G. OUELLETTE ,  Christopher J. WIEGAND ,  MD Tofizur RAHMAN ,  Brian MAERTZ ,  Oleg GOLONZKA ,  Justin S. BROCKMAN ,  Kevin P. O'BRIEN ,  Brian S. DOYLE ,  Kaan OGUZ ,  Tahir GHANI ,  Mark L. DOCZY

IPC: H01L43/02 ,  H01L27/22 ,  H01L43/08 ,  H01L43/12 ,  H01L43/10

Abstract: Approaches for strain engineering of perpendicular magnetic tunnel junctions (pMTJs), and the resulting structures, are described. In an example, a memory structure includes a perpendicular magnetic tunnel junction (pMTJ) element disposed above a substrate. A lateral strain-inducing material layer is disposed on the pMTJ element. An inter-layer dielectric (ILD) layer is disposed laterally adjacent to both the pMTJ element and the lateral strain-inducing material layer. The ILD layer has an uppermost surface co-planar or substantially co-planar with an uppermost surface of the lateral strain-inducing material layer.

公开(公告)号：US20180327887A1

公开(公告)日：2018-11-15

申请号：US15777502

申请日：2015-12-18

Applicant: Intel Corporation

Inventor： Christopher J. WIEGAND ,  Philip YASHAR ,  Anurag CHAUDHRY

IPC: C22C27/04 ,  C23C14/34 ,  C23C14/56 ,  H01J37/34 ,  C22C1/04

CPC classification number: C22C27/04 ,  C22C1/045 ,  C23C14/3414 ,  C23C14/564 ,  H01J37/3405 ,  H01J37/3426

Abstract: Refractory metal alloy targets for reducing particles in physical vapor deposition processing and refractory metal-based layer for integrated circuit applications (for example, crystallization barrier layers in non-volatile memory devices) are disclosed herein. An exemplary method for reducing particles in a PVD chamber include positioning a refractory metal alloy target in the PVD chamber, positioning a substrate in the PVD chamber a distance from the refractory metal alloy target, and sputtering material from the refractory metal alloy target to form a refractory metal-based layer over the substrate. The refractory metal alloy target includes a refractory metal (for example, tungsten or molybdenum) alloyed with a body-centered cubic (BCC) metal (for example, niobium, tantalum, vanadium, or a combination thereof). The BCC metal has a Young's modulus lower than a Young's modulus of the refractory metal.