摘要:
Prior to the reprogramming of a selected flash memory cell of a memory cell array, electrons being removed from the memory layer (M) in the channel region (C) by Fowler-Nordheim tunneling, a lower potential for incipient programming of the memory cell is applied to the relevant word line (WLn) while the associated bit line (BLm) remains at the basic potential. What is thereby achieved is that a gate disturb occurring during the programming operation does not lead to erratic bits along the affected word line (WLn).
摘要翻译:在对存储单元阵列的选定闪存单元进行重新编程之前,通过Fowler-Nordheim隧道从电子区域(C)中的存储层(M)中移除的电子,用于存储器单元的初始编程的较低电位是 而相关联的位线(BL m SUB>)保持在基本电位的情况下被施加到相关字线(WL SUB)。 由此实现的是在编程操作期间发生的门扰动不会导致沿着受影响的字线(WL SUB)的不稳定的位。
摘要:
A nonvolatile semiconductor memory cell, an associated semiconductor circuit configuration and also a fabrication method, in which, in a substrate, active regions are formed with a first insulating layer situated above them, a charge-storing layer, a second insulating layer and a control layer. In order to realize a particularly small cell area, in a third insulating layer situated thereabove, openings are formed above at least partial regions of source/drain regions, which are each directly contact-connected via the openings by source and drain lines formed on an insulating web.
摘要:
A method for fabricating a memory cell array, in particular an EPROM or EEPROM memory cell array, includes burying insulation zones on a silicon substrate in accordance with an STI (Shallow Trench Isolation) technique, forming word lines on the insulation zones, covering the word lines with a hard mask and side wall oxides and CVD depositing an oxide or nitride laterally onto the hard mask and onto the side wall oxides to define a spacer. Spacer channels are etched into the insulation zones between adjoining word lines. An SAS (Self Aligned Source) resist mask is applied to mask each two adjacent coated word lines on mutually facing sections, including the spacer channel located between these word lines, while each two adjacent masked word lines of masked word line pairs remain unmasked on mutually facing sections. The SAS resist mask is exposed. Those regions of the insulation zones which are not covered by the SAS perforated mask are anisotropic etched, with a bottom of uncovered spacer channels being lowered down at least to a surface of the uncovered silicon substrate. The SAS perforated mask is removed to uncover a resultant structure.
摘要:
The invention relates to a semiconductor component with trench isolation and to an associated fabrication method, a trench isolation (STI, TTI) having a deep isolation trench with a covering insulation layer (10, 11), a side wall insulation layer (6) and an electrically conductive filling layer (7), which is electrically connected to a predetermined doping region (1) of the semiconductor substrate in a bottom region of the trench. The use of a trench contact (DTC), which has a deep contact trench with a side wall insulation layer (6) and an electrically conductive filling layer (7), which is likewise electrically connected to the predetermined doping region (1) of the semiconductor substrate in a bottom region of the contact trench, makes it possible to improve the electrical shielding properties with a reduced area requirement.
摘要:
The invention relates to a semiconductor component with stress-absorbing semiconductor layer (SA) and an associated fabrication method, a crystalline stress generator layer (SG) for generating a mechanical stress being formed on a carrier material (1). An insulating stress transmission layer (2), which transmits the mechanical stress which has been generated to a stress-absorbing semiconductor layer (SA), is formed at the surface of the stress generator layer (SG), with the result that in addition to improved charge carrier mobility, improved electrical properties of the semiconductor component are also obtained.
摘要:
The invention relates to a nonvolatile semiconductor memory cell and to an associated fabrication method, a source region (7), a drain region (8) and a channel region lying in between being formed in a substrate (1). In order to realize locally delimited memory locations (LB, RB), an electrically non-conductive charge storage layer (3) situated on a first insulation layer (2) is divided by an interruption (U), thereby preventing, in particular, a lateral charge transport between the memory locations (LB, RB) and significantly improving the charge retention properties.
摘要:
The invention relates to a semiconductor component with trench isolation and to an associated fabrication method, a trench isolation (STI, TTI) having a deep isolation trench with a covering insulation layer (10, 11), a side wall insulation layer (6) and an electrically conductive filling layer (7), which is electrically connected to a predetermined doping region (1) of the semiconductor substrate in a bottom region of the trench. The use of a trench contact (DTC), which has a deep contact trench with a side wall insulation layer (6) and an electrically conductive filling layer (7), which is likewise electrically connected to the predetermined doping region (1) of the semiconductor substrate in a bottom region of the contact trench, makes it possible to improve the electrical shielding properties with a reduced area requirement.
摘要:
The invention relates to a detector arrangement (100), a method for the detection of electrical charge carriers and use of an ONO field effect transistor for detection of an electrical charge. The detector arrangement (100) has an ONO field effect transistor embodied on and/or in a substrate (101), for the detection of electrical charge carriers, such that the electrical charge carrier (103) for detection may be introduced into die ONO field effect transistor layer sequence (102), a recording unit (104), coupled to the ONO field effect transistor, for recording an electrical signal characteristic of the amount and/or the charge carrier type for the electrical charge carrier (103) introduced into the ONO layer sequence (102) and an analytical unit for determining the amount and/or the charge carrier type of the electrical charge carrier (103) introduced into the ONO layer sequence (102) from the characteristic electrical signal.
摘要:
The invention relates to a semiconductor component with stress-absorbing semiconductor layer (SA) and an associated fabrication method, a crystalline stress generator layer (SG) for generating a mechanical stress being formed on a carrier material (1). An insulating stress transmission layer (2), which transmits the mechanical stress which has been generated to a stress-absorbing semiconductor layer (SA), is formed at the surface of the stress generator layer (SG), with the result that in addition to improved charge carrier mobility, improved electrical properties of the semiconductor component are also obtained.
摘要:
The invention relates to a nonvolatile two-transistor semiconductor memory cell and an associated fabrication method, source and drain regions (2) for a selection transistor (AT) and a memory transistor (ST) being formed in a substrate (1). The memory transistor (ST) has a first insulation layer (3), a charge storage layer (4), a second insulation layer (5) and a memory transistor control layer (6), while the selection transistor (AT) has a first insulation layer (3′) and a selection transistor control layer (4*). By using different materials for the charge storage layer (4) and the selection transistor control layer (4*), it is possible to significantly improve the charge retention properties of the memory cell by adapting the substrate doping with electrical properties remaining the same.