看李 乐福的 OTA 设计 许多的疑惑
0.18 的工艺库，哪里有这个东西?好多的不懂慢慢问吧！
如下图：
还有兄弟们有没有 一个 例如7805IC 设计的简单实例之类的，让我从头到尾 理解一下 设计的过程，让我们不再感觉那么深奥。
我再次感恩涕零，诸位的协助。
库文件中有一个.scs文件(如果你用spectre做仿真的话)，里面有这些参数的。
我怎么看 ****************************************************************************************
*GSMC Logic/Analog 0.18um 1P6M Industry Baseline Generic 1.8V/3.3V process SPICE MODEL *
****************************************************************************************
工艺库里怎么没有呢?
只有 RAR压缩包里只有 一个 gd018.l的文件
而 gd018.l 只是一个 TXT文本文件。如下图 是否还需要看具体的 说明呢?
****************************************************************************************
*GSMC Logic/Analog 0.18um 1P6M Industry Baseline Generic 1.8V/3.3V process SPICE MODEL *
****************************************************************************************
*
*PROCESS :GSMC 0.18um 1P6M SALICIDE 1.8V/3.3V
*MODEL:BSIM3(V3.2) (Hspice level 49)
*VERSION :V1.4
*DATE:Nov 27, 2007
******************************************************************************************
*In the input netlist, use the below .lib statements to call the desired models in gd018.l model file:
*
*Lib nameDescription
*
*.lib 'gd018.l' TT1.8V nominal typical NMOS and typical PMOS models
*.lib 'gd018.l' SS1.8V nominal slow NMOS and slow PMOS models
*.lib 'gd018.l' FF1.8V nominal fast NMOS and fast PMOS models
*.lib 'gd018.l' SF1.8V nominal slow NMOS and fast PMOS models
*.lib 'gd018.l' FS1.8V nominal fast NMOS and slow PMOS models
*.lib 'gd018.l' TT_3V3.3V nominal typical NMOS and typical PMOS models
*.lib 'gd018.l' SS_3V3.3V nominal slow NMOS and slow PMOS models
*.lib 'gd018.l' FF_3V3.3V nominal fast NMOS and fast PMOS models
*.lib 'gd018.l' SF_3V3.3V nominal slow NMOS and fast PMOS models
*.lib 'gd018.l' FS_3V3.3V nominal fast NMOS and slow PMOS models
*.lib 'gd018.l' TT_N1.8V native typical NMOS models
*.lib 'gd018.l' SS_N1.8V native slow NMOS models
*.lib 'gd018.l' FF_N1.8V native fast NMOS models
*.lib 'gd018.l' SF_N1.8V native slow NMOS models
*.lib 'gd018.l' FS_N1.8V native fast NMOS models
*.lib 'gd018.l' TT_N33.3V native typical NMOS models
*.lib 'gd018.l' SS_N33.3V native slow NMOS models
*.lib 'gd018.l' FF_N33.3V native fast NMOS models
*.lib 'gd018.l' SF_N33.3V native slow NMOS models
*.lib 'gd018.l' FS_N33.3V native fast NMOS models
*.lib 'gd018.l' TT_M1.8V MEDIUM Vt typical NMOS and typical PMOS models
*.lib 'gd018.l' SS_M1.8V MEDIUM Vt slow NMOS and slow PMOS models
*.lib 'gd018.l' FF_M1.8V MEDIUM Vt fast NMOS and fast PMOS models
*.lib 'gd018.l' SF_M1.8V MEDIUM Vt slow NMOS and fast PMOS models
*.lib 'gd018.l' FS_M1.8V MEDIUM Vt fast NMOS and slow PMOS models
*.lib 'gd018.l' TT_M33.3V MEDIUM Vt typical NMOS models
*.lib 'gd018.l' SS_M33.3V MEDIUM Vt slow NMOS and slow PMOS models
*.lib 'gd018.l' FF_M33.3V MEDIUM Vt fast NMOS and fast PMOS models
*.lib 'gd018.l' SF_M33.3V MEDIUM Vt slow NMOS and fast PMOS models
*.lib 'gd018.l' FS_M33.3V MEDIUM Vt fast NMOS and slow PMOS models
*.lib 'gd018.l' DIO1.8V diode models
*.lib 'gd018.l' DIO33.3V diode models
*.lib 'gd018.l' DIO_DNWDNW related diode models
*.lib 'gd018.l' BIP_TT1.8V Vertical PNP and NPN Bipolar typical models
*.lib 'gd018.l' BIP_FF1.8V Vertical PNP and NPN Bipolar fast models
*.lib 'gd018.l' BIP_SS1.8V Vertical PNP and NPN Bipolar slow models
*.lib 'gd018.l' BIP3_TT3.3V Vertical PNP Bipolar typical models
*.lib 'gd018.l' BIP3_FF3.3V Vertical PNP Bipolar fast models
*.lib 'gd018.l' BIP3_SS3.3V Vertical PNP Bipolar slow models
*.lib 'gd018.l' RES_TTResistor typical models
*.lib 'gd018.l' RES_FFResistor fast models
*.lib 'gd018.l' RES_SSResistor slow models
*.lib 'gd018.l' CAP_TTTypical MIM Capacitor models
*.lib 'gd018.l' CAP_FFFast MIM Capacitor models
*.lib 'gd018.l' CAP_SSSlow MIM Capacitor models
你这个是一个spice库文件，你在其它文件找一下吧。
靠这些参数计算得到的器件尺寸和仿真器得到的结果差异会很大，现在的器件模型很复杂，最好还是参考一下gm/id的设计方法
大哥你把名字写错了，是李福乐我们上课的老师，他的AD在清华是比较有名的
25看一看
只能努力学习 努力灌水
gm/id的设计方法能否解释一下?
gm/id 曲线还是比较稳定的，可以仿真gm/id vs Id/W 的曲线。
去搜一下，有一篇paper介绍的。
李福乐也在这个版上混的，直接问他好了。
嘎嘎嘎
谢谢啊！