EEPROM with reduced manufacturing complexity

    公开(公告)号:US06734491B1

    公开(公告)日:2004-05-11

    申请号:US10331705

    申请日:2002-12-30

    IPC分类号: H01L29788

    摘要: A semiconductor device (200) comprising a semiconductor substrate (210) having source and drain regions (530, 540) located in the semiconductor substrate (210) and having similar doping profiles, wherein a channel region (550) extends from the source region (530) to the drain region (540). The semiconductor device (200) also comprises a dielectric layer (230) located over the source and drain regions (530, 540), the dielectric layer (230) having first and second thicknesses (T1, T2) wherein the second thickness (T2) is substantially less than the first thickness (T1) and is partially located over the channel region (550). The semiconductor device (200) also comprises a gate (510) located over the dielectric layer (230) wherein the second thickness (T2) is located between an end (515) of the gate (510) and one of the source and drain regions (530, 540).

    System and method for forming a semiconductor with an analog capacitor using fewer structure steps
    2.
    发明申请
    System and method for forming a semiconductor with an analog capacitor using fewer structure steps 有权
    使用更少的结构步骤用模拟电容器形成半导体的系统和方法

    公开(公告)号:US20050221595A1

    公开(公告)日:2005-10-06

    申请号:US11145460

    申请日:2005-06-02

    CPC分类号: H01L29/66825 H01L21/28273

    摘要: A method for manufacturing a semiconductor device that comprises forming an oxide layer over a substrate. A polysilicon layer is disposed outwardly from the oxide layer, wherein the polysilicon layer forms a floating gate. A PSG layer is disposed outwardly from the polysilicon layer and planarized. The device is pattern etched to form a capacitor channel, wherein the capacitor channel is disposed substantially above the floating gate formed from the polysilicon layer. A dielectric layer is formed in the capacitor channel disposed outwardly from the polysilicon layer. A tungsten plug operable to substantially fill the capacitor channel is formed.

    摘要翻译: 一种制造半导体器件的方法,包括在衬底上形成氧化物层。 多晶硅层从氧化物层向外设置,其中多晶硅层形成浮栅。 PSG层从多晶硅层向外设置并平坦化。 该器件被图形蚀刻以形成电容器通道,其中电容器通道基本上设置在由多晶硅层形成的浮置栅极的上方。 在从多晶硅层向外设置的电容器通道中形成介电层。 形成可操作以充分充电电容器通道的钨插头。