Generally, prior to 20th day after fertilization, drugs would either cause embryo death or nothing. Of 速效感冒冲剂: Tylenol - safe for pregnancy Chlorpheniramine - safe for pregnancy Small amounts of caffeine is not a problem (you can still drink coffee or tea) Not that familiar with Chinese medicine, but I don't think 人工牛黄 is a problem. If you are still worried then check with the doctor - need to see he/she soon anyway.
【在 t*******n 的大作中提到】 : Generally, prior to 20th day after fertilization, drugs would either cause : embryo death or nothing. : Of 速效感冒冲剂: : Tylenol - safe for pregnancy : Chlorpheniramine - safe for pregnancy : Small amounts of caffeine is not a problem (you can still drink coffee or : tea) : Not that familiar with Chinese medicine, but I don't think 人工牛黄 is a : problem. : If you are still worried then check with the doctor - need to see he/she
刚刚看了design manual: A floating gate device is any device where the PC (poly) shape - touches RX (diffusion) and - is NOT electrically connected to RX 意思是说如果cell library里的所有poly 都用一个反向Diode接到地,这样就没有 floating gate了。然后再place and route,无论poly, metal1, metal2有多长都不会 有floating gate error。 是这样吗?
【在 I***a 的大作中提到】 : 刚刚看了design manual: : A floating gate device is any device where the PC (poly) shape : - touches RX (diffusion) and : - is NOT electrically connected to RX : 意思是说如果cell library里的所有poly 都用一个反向Diode接到地,这样就没有 : floating gate了。然后再place and route,无论poly, metal1, metal2有多长都不会 : 有floating gate error。 : 是这样吗?
s*n
18 楼
看了,好像觉得她在几个电视剧中都差不多
I*a
19 楼
我用的不是standard cell,是同学做的cell. 手册上说: The metal antenna ratio is defined as the ratio of the metal area to the gate oxide area to which it is connected at any level at which the gate has not yet been electrically connected to RX. 意思说如果cell里本身没有floating gate, 即使用了大面积(连接到gate)金属走线, 也不会报错,因为 antenna ratio 是定义在floating gate 存在的前提下的。 所以做cell的时候保证没有floating gate就不会有这些问题了。方法是把cell里的每个gate都用一个二极管反向接地。 是这样吗?
a*t
20 楼
内小夫妻俩演的太做作了
s*o
21 楼
这样做应该可以避免这些error。但我怀疑这是不是一个好的方法。毕竟每个cell都加 diode:1.比较费面积;2.增加了gate parasitic cap;3.增加了leakage current。你 做的是digital design吗?需要自动的place and route?我对这些就不太懂了。
RX. ,
【在 I***a 的大作中提到】 : 我用的不是standard cell,是同学做的cell. : 手册上说: : The metal antenna ratio is defined as the ratio of the metal area to the : gate oxide area to which it is connected : at any level at which the gate has not yet been electrically connected to RX. : 意思说如果cell里本身没有floating gate, 即使用了大面积(连接到gate)金属走线, : 也不会报错,因为 antenna ratio 是定义在floating gate 存在的前提下的。 : 所以做cell的时候保证没有floating gate就不会有这些问题了。方法是把cell里的每个gate都用一个二极管反向接地。 : 是这样吗?
有人说用GRLOGIC这个层把数字部分框起来会让floating gate check 忽略数字部分 我看了手册,里面说GRLOGIC这个层是 Shape identifies structures that are exempt from recommended or more stringent layout rule checking. Intended for IBM use in Digital Library offerings. 什么是Digital Library offerings? IBM foundry 设计这个层仅仅是为了设置忽略floating gate check的部分, 还是数字部分本来就是可以忽略的?
First you need to check out the process node you are using in IBM, if you are using let's say 8RF DM, it is target to RF/Analog process and anntena rules are very strict because of the special metal layers. But for LM process target to digital, it should be all right after you apply .clf settings(I can find this file under the milkway library downloaded for standard cell/IO cell library, but not with Cadence PDK)