摘要:
A method of edge protecting bonded semiconductor wafers. A second semiconductor wafer and a first semiconductor wafer are attached by a bonding layer/interface and the second semiconductor wafer undergoes a thinning process. As a part of the thinning process, a first protective layer is applied to the edges of the second and first semiconductor wafers. A third semiconductor wafer is attached to the second semiconductor wafer by a bonding layer/interface and the third semiconductor wafer undergoes a thinning process. As a part of the thinning process, a second protective layer is applied to the edges of the third semiconductor wafer and over the first protective layer. The first, second and third semiconductor wafers form a wafer stack. The wafer stack is diced into a plurality of 3D chips while maintaining the first and second protective layers.
摘要:
A method of edge protecting bonded semiconductor wafers. A second semiconductor wafer and a first semiconductor wafer are attached by a bonding layer/interface and the second semiconductor wafer undergoes a thinning process. As a part of the thinning process, a first protective layer is applied to the edges of the second and first semiconductor wafers. A third semiconductor wafer is attached to the second semiconductor wafer by a bonding layer/interface and the third semiconductor wafer undergoes a thinning process. As a part of the thinning process, a second protective layer is applied to the edges of the third semiconductor wafer and over the first protective layer. The first, second and third semiconductor wafers form a wafer stack. The wafer stack is diced into a plurality of 3D chips while maintaining the first and second protective layers.
摘要:
There is disclosed a layout of a high voltage Darlington pair in which a circular field plate is utilized for both high voltage transistors in order to reduce the layout area. In this layout, both transistors of a Darlington pair are circular transistors and they both have a common center. This enables both high voltage transistors to share one field plate ring and one collector ring.
摘要:
A vertical transistor which is built in a substrate of a given first carrier type utilizing standard processes but which has a unique layout which facilitates high voltage, high current operation while still conserving space. The transistor is built utilizing a repeatable combination gate/source area that is built in the upper area of the substrate such that the remaining lower portion of the substrate underneath the combination gate/source area is the drain area of the transistor.
摘要:
A high voltage bipolar transistor fabricated on a CMOS substrate without adding any additional process steps. During the CMOS n-well mask and implant steps an n-well is formed for the transistor. Next, during the CMOS field and deep boron implant steps a circular p-field is formed within the n-well. Finally, during the CMOS p+ mask and implant steps the p+ emitter is formed. The presence of the p-field between the emitter and n+ base provides high voltage protection.
摘要翻译:制造在CMOS衬底上的高电压双极晶体管,而不需要增加任何额外的工艺步骤。 在CMOS n阱掩模和注入步骤期间,为晶体管形成n阱。 接下来,在CMOS场和深硼注入步骤期间,在n阱内形成圆形p场。 最后,在CMOS p +掩模和注入步骤期间,形成p +发射极。 发射极和n +基极之间的p场的存在提供高电压保护。
摘要:
A method of producing reduced corrosion interconnect structures and structures thereby formed. A method of producing microelectronic interconnects having reduced corrosion begins with a damascene structure having a first dielectric and a first interconnect. A metal oxide layer is deposited selectively to metal or nonselective over the damascene structure and then thermally treated. The treatment converts the metal oxide over the first dielectric to a metal silicate while the metal oxide over the first interconnect remains as a self-aligned protective layer. When a subsequent dielectric stack is formed and patterned, the protective layer acts as an etch stop, oxidation barrier and ion bombardment protector. The protective layer is then removed from the patterned opening and a second interconnect formed. In a preferred embodiment the metal oxide is a manganese oxide and the metal silicate is a MnSiCOH, the interconnects are substantially copper and the dielectric contains ultra low-k.
摘要:
In accordance with one aspect of the invention, a method is provided for fabricating a semiconductor element having a contact via. In such method, a hole can be formed in a dielectric layer to at least partially expose a region including at least one of semiconductor or conductive material. A seed layer can be deposited over a major surface of the dielectric layer and over a surface within the hole. In one embodiment, the seed layer can include a metal selected from the group consisting of iridium, osmium, palladium, platinum, rhodium, and ruthenium. A layer consisting essentially of cobalt can be electroplated over the seed layer within the hole to form a contact via in electrically conductive communication with the region.
摘要:
Electronic logic gates that operate using N logic state levels, where N is greater than 2, and methods of operating such gates. The electronic logic gates operate according to truth tables. At least two input signals each having a logic state that can range over more than two logic states are provided to the logic gates. The logic gates each provide an output signal that can have one of N logic states. Examples of gates described include NAND/NAND gates having two inputs A and B and NAND/NAND gates having three inputs A, B, and C, where A, B and C can take any of four logic states. Systems using such gates are described, and their operation illustrated. Optical logic gates that operate using N logic state levels are also described.
摘要:
An interconnect structure is provided that has improved electromigration resistance as well as methods of forming such an interconnect structure. The interconnect structure includes an interconnect dielectric material having a dielectric constant of about 4.0 or less. The interconnect dielectric material has at least one opening therein that is filled with a Cu-containing material. The Cu-containing material within the at least one opening has an exposed upper surface that is co-planar with an upper surface of the interconnect dielectric material. The interconnect structure further includes a composite M-MOx cap located at least on the upper surface of the Cu-containing material within the at least one opening. The composite M-MOx cap includes an upper region that is composed of the metal having a higher affinity for oxygen than copper and copper oxide and a lower region that is composed of a non-stoichiometric oxide of said metal. The interconnect structure further includes a dielectric cap located on at least an upper surface of the composite M-MOx cap.
摘要:
High voltage circuitry often requires assembling an array of high voltage devices that are electrically isolated from one another. A lead frame that fits within conventional plastic packaging has been designed that will allow electrical isolation of the substrates of two or more transistors mounted together in a single package.