摘要:
Semiconductor devices with improved data retention are formed by depositing an undoped oxide liner on spaced apart transistors followed by in situ deposition of a BPSG layer. Embodiments include depositing an undoped silicon oxide liner derived from TEOS, as at a thickness of 400 Å to 600 Å, on transistors of a non-volatile semiconductor device, as by sub-atmospheric chemical vapor deposition, followed by depositing the BPSG layer in the same deposition chamber.
摘要:
A method of protecting a SONOS flash memory cell from UV-induced charging, including fabricating a SONOS flash memory cell in a semiconductor device; and depositing over the SONOS flash memory cell at least one UV-protective layer, the UV-protective layer including a substantially UV-opaque material. A SONOS flash memory device, including a SONOS flash memory cell; and at least one UV-protective layer, in which the UV-protective layer comprises a substantially UV-opaque material, is provided. In one embodiment, the device includes a substantially UV-opaque contact cap layer.
摘要:
A method of protecting a SONOS flash memory cell from UV-induced charging, including fabricating a SONOS flash memory cell in a semiconductor device; and depositing over the SONOS flash memory cell at least one UV-protective layer, the UV-protective layer including a substantially UV-opaque material. In one embodiment, the device includes a substantially UV-opaque sub-layer of a contact cap layer or a substantially UV-opaque contact cap layer.
摘要:
A method of manufacturing a memory device includes forming a first dielectric layer over a substrate and forming a charge storage element over the first dielectric layer. The method also includes forming a second dielectric layer over the charge storage element and forming a control gate over the second dielectric layer. The method further includes depositing an interlayer dielectric over the control gate at a high temperature.
摘要:
A method of eliminating voids in the interlayer dielectric material of 0.18-&mgr;m flash memory semiconductor devices and a semiconductor device formed by the method. The present invention provides a method for eliminating voids in the interlayer dielectric of a 0.18-&mgr;m flash memory semiconductor device by providing a first BPTEOS layer, using a very low deposition rate and having a thickness in a range of approximately 3 kÅ; and providing a second BPTEOS layer, using a standard deposition rate and having a thickness in a range of approximately 13 kÅ, wherein both layers have an atomic dopant concentration of approximately 4.5% B and approximately 5% P. This two-step deposition process completely eliminates voids in the ILD for a 0.5-&mgr;m distance (gate-to-gate) as well as 0.38-&mgr;m distance (gate-to-gate) which is the future flash technology. A low dopant/TEOS flow performed at a higher pressure during the deposition of the first layer provides an excellent gap-filling capability which eliminates voiding. Further, the present invention has the advantage of in-situ deposition of the void-free ILD0 layer of the 0.18-&mgr;m flash memory semiconductor device having a sound dopant concentration.
摘要:
A method of eliminating voids in the interlayer dielectric material of 0.18-&mgr;m flash memory semiconductor devices and a semiconductor device formed by the method. The present invention provides a method for eliminating voids in the interlayer dielectric of a 0.18-&mgr;m flash memory semiconductor device by providing a first BPTEOS layer, using a very low deposition rate and having a thickness in a range of approximately 3 kÅ; and providing a second BPTEOS layer, using a standard deposition rate and having a thickness in a range of approximately 13 kÅ, wherein both layers have an atomic dopant concentration of approximately 4.5% B and approximately 5% P. This two-step deposition process completely eliminates voids in the ILD for a 0.5-&mgr;m distance (gate-to-gate) as well as 0.38-&mgr;m distance (gate-to-gate) which is the future flash technology. A low dopant/TEOS flow performed at a higher pressure during the deposition of the first layer provides an excellent gap-filling capability which eliminates voiding. Further, the present invention has the advantage of in-situ deposition of the void-free ILD0 layer of the 0.18-&mgr;m flash memory semiconductor device having a sound dopant concentration.
摘要:
The integrity of the interface and adhesion between a barrier or capping layer and a Cu or Cu alloy interconnect member is significantly enhanced by delaying and/or slowly ramping up the introduction of silane to deposit a silicon nitride capping layer after treating the exposed planarized surface of the Cu or Cu alloy with an ammonia-containing plasma. Other embodiments include purging the reaction chamber with nitrogen at elevated temperature to remove residual gases prior to introducing the wafer for plasma treatment.
摘要:
An integrated circuit and method of manufacture therefore is provided having a semiconductor substrate with a semiconductor device with a dielectric layer over the semiconductor substrate. A conductor core fills the opening in the dielectric layer. An etch stop layer with a dielectric constant below 5.5 is formed over the first dielectric layer and conductor core. A second dielectric layer over the etch stop layer has an opening provided to the conductor core. A second conductor core fills the second opening and is connected to the first conductor core.
摘要:
Bridging between nickel silicide layers on a gate electrode and source/drain regions along silicon nitride sidewall spacers is prevented by treating the exposed surfaces of the silicon nitride sidewall spacers with a plasma containing ammonia and nitrogen to create a clean surface region having increased nitrogen. Embodiments include treating the silicon nitride sidewall spacers with an ammonia and nitrogen plasma to reduce the refractive index of the surface region to less than about 1.95.
摘要:
A silicon oxide layer is deposited at a thickness of about 50 Å or less by a multi-stage method comprising depositing a sub-layer of silicon oxide in each stage by PECVD at a low deposition rate. Embodiments include depositing a silicon dioxide liner over a gate electrode in at least four stages, each stage comprising depositing a sub-layer at a thickness of 10 Å or less.