Abstract:
Semiconductor devices are formed with reduced variability between close proximity resistors, improved end resistances, and reduced random dopant mismatch. Embodiments include ion implanting a dopant, such as B, at a relatively high dosage, e.g. about 4 to about 6keV, and at a relatively low implant energy, e.g., about 1.5 to about 2E15/cm 2 .
Abstract translation:半导体器件形成在近距离电阻之间具有降低的变异性,改善的端电阻和减少的随机掺杂物失配。 实施例包括以相当高的剂量例如离子注入掺杂剂,例如B。 约4至约6keV,并且在相对较低的注入能量下,例如约1.5至约2E15 / cm 2。
Abstract:
A method is provided for tuning (i.e. modifying, changing) the impedance of semiconductor components or devices using a focused heating source. The method may be exploited for finely tuning the impedance of semiconductor components or devices, by modifying the dopant profile of a region of low dopant concentration (i.e. increasing the dopant concentration) by diffusion of dopants from adjacent regions of higher dopant concentration through the melting action of a focused heating source, for example a laser. The present invention is in particular directed to the use of lasers in relation to circuits for the creation of conductive links and pathways where none existed before. The present invention more particularly relates to a means wherein impedance modification (i.e. trimming or tuning) may advantageously be carried out as a function of the location of one or more conductive bridge(s) along the length of a gap region.
Abstract:
본 발명은 반도체 소자의 직렬 저항 성분을 감소시키고 효과적인 열 방출을 도모하여 소자 특성 향상을 위한 반도체 기판 연마 공정을 식각 방법으로 사용하는 트렌치 기법을 이용한 2단자 반도체 소자 제작 방법을 제공하기 위한 것으로서, 불순물이 첨가된 활성층이 성장된 기판 위에 식각 패턴을 형성하여 식각을 통해 트렌치를 형성하는 단계와, 상기 식각 패턴 제거 후, 기판 상부 전면에 증착(evaporation) 또는 스퍼터링(sputtering) 방법을 이용하여 전면 금속층을 형성하는 단계와, 상기 전면 금속층이 형성된 기판 전면에 상기 형성된 트렌치 옆면보다 두꺼운 두께로 도금 금속층을 형성하는 단계와, 기계적 또는 화학적 방법 중 적어도 하나 이상의 연마 공정을 이용하여 상기 기판 하부에 상기 전면 금속층이 노출될 때까지 연마를 수행하는 단계와, 상기 연마된 기판 위에 금속 전극 형성을 위한 후면 금속층을 형성하는 단계와, 습식 또는 건식 식각 방법 중 적어도 하나를 이용하여 각각의 소자들을 분리하는 단계를 포함하는데 있다.
Abstract:
A fabrication process for bipolar transistors having arsenic emitters which include masking an epitaxial layer so as to provide windows for defining a collector contact region, a base region and an isolation region. Phosphorus ions are introduced into the epitaxial layer through the window defining the collector contact region; and boron ions are introduced into the epitaxial layer through the windows defining the base region and the isolation region. The epitaxial layer is also masked to provide a window defining an emitter region within the base region and windows for ohmic connections to the base region, the collector contact region and the isolation region. Arsenic ions are then introduced into the epitaxial layer through the window defining the emitter region; and electrical connections are provided to the emitter region, the base region, the collector region and the isolation region through the windows for ohmic connections.
Abstract:
Metal-oxide-polysilicon tunable resistors and methods of fabricating metal-oxide-polysilicon tunable resistors are described. In an example, a tunable resistor includes a polysilicon resistor structure disposed above a substrate. A gate oxide layer is disposed on the polysilicon resistor structure. A metal gate layer is disposed on the gate oxide layer.
Abstract:
A solid source-diffused junction is described for fin-based electronics. In one example, a fin is formed on a substrate. A glass of a first dopant type is deposited over the substrate and over a lower portion of the fin. A glass of a second dopant type is deposited over the substrate and the fin. The glass is annealed to drive the dopants into the fin and the substrate. The glass is removed and a first and a second contact are formed over the fin without contacting the lower portion of the fin.
Abstract:
In described examples, an integrated circuit (100) containing a well resistor (110) has STI field oxide (108) and resistor dummy active areas (118) in the well resistor (110). STI trenches are etched and filled with trench fill dielectric material. The trench fill dielectric material is removed from over the active areas (118) by a CMP process, leaving STI field oxide (108) in the STI trenches. Subsequently, dopants are implanted into a substrate (102) in the well resistor area to form the well resistor (110).
Abstract:
A transistor (10) and a method of making the same are provided. The transistor (10) includes a substrate (12) and an insulating layer (46) on the substrate (12) that has an opening therein (62) extending at least to the substrate (12). A gate electrode (16) is positioned in the opening (62). A first source/drain region (24) and a second source/drain region (26) are positioned in spaced-apart relation in the substrate (12). A metal oxide gate dielectric layer (14) in positioned between the gate electrode (16) and the substrate (12). The gate electrode (16) may be composed of a high temperature resistant material, such as tungsten. The gate dielectric layer (14) may be composed of a high K material with a thin equivalent thickness of oxide, such as TiO2.