公开(公告)号：US09135137B2

公开(公告)日：2015-09-15

申请号：US13721185

申请日：2012-12-20

申请人： INTERNATIONAL BUSINESS MACHINES CORPORATION

发明人： Qin Yue Chen ,  Qi Liang ,  Hong Chang Lin ,  Feng Liu

IPC分类号： G06F9/45 ,  G06F11/34 ,  G06F9/44

摘要： A method for control flow analysis according to an embodiment of the present invention includes: acquiring an original function call tree of a program, wherein nodes of the original function call tree represent functions and a parent/child relation between the nodes represents a calling relation; generating a corresponding function dominator tree from the calling relation, wherein nodes of the function dominator tree represent the functions and a parent/child relation between the nodes represents a dominator relation, wherein a first function dominates a second function if all the invocations to the second function are originated by the first function; and simplifying the original function call tree according to the function dominator tree so as to obtain a simplified function call tree. According to an embodiment of the present invention, the function call tree for control flow analysis can be simplified.

公开(公告)号：US09176842B2

公开(公告)日：2015-11-03

申请号：US13721185

申请日：2012-12-20

申请人： INTERNATIONAL BUSINESS MACHINES CORPORATION

发明人： Qin Yue Chen ,  Qi Liang ,  Hong Chang Lin ,  Feng Liu

IPC分类号： G06F9/45 ,  G06F11/34 ,  G06F9/44

CPC分类号： G06F11/3466 ,  G06F8/433 ,  G06F8/443 ,  G06F8/75

摘要： A method for control flow analysis according to an embodiment of the present invention includes: acquiring an original function call tree of a program, wherein nodes of the original function call tree represent functions and a parent/child relation between the nodes represents a calling relation; generating a corresponding function dominator tree from the calling relation, wherein nodes of the function dominator tree represent the functions and a parent/child relation between the nodes represents a dominator relation, wherein a first function dominates a second function if all the invocations to the second function are originated by the first function; and simplifying the original function call tree according to the function dominator tree so as to obtain a simplified function call tree. According to an embodiment of the present invention, the function call tree for control flow analysis can be simplified.

摘要翻译： 根据本发明实施例的控制流分析方法包括：获取程序的原始函数调用树，其中原始函数调用树的节点表示函数，并且节点之间的父/子关系表示调用关系; 从所述调用关系生成相应的函数支配树，其中所述函数支配树的节点表示所述函数，并且所述节点之间的父/子关系表示支配关系，其中如果对所述第二函数的所有调用都是第一函数，则第一函数支配第二函数 功能起源于第一功能; 并根据功能支配树简化原函数调用树，以获得简化的函数调用树。 根据本发明的实施例，可以简化用于控制流分析的功能调用树。

公开(公告)号：US20130174127A1

公开(公告)日：2013-07-04

申请号：US13721185

申请日：2012-12-20

申请人： INTERNATIONAL BUSINESS MACHINES CORPORATION

发明人： Qin Yue Chen ,  Qi Liang ,  Hong Chang Lin ,  Feng Liu

IPC分类号： G06F11/34

CPC分类号： G06F11/3466 ,  G06F8/433 ,  G06F8/443 ,  G06F8/75

摘要： A method for control flow analysis according to an embodiment of the present invention includes: acquiring an original function call tree of a program, wherein nodes of the original function call tree represent functions and a parent/child relation between the nodes represents a calling relation; generating a corresponding function dominator tree from the calling relation, wherein nodes of the function dominator tree represent the functions and a parent/child relation between the nodes represents a dominator relation, wherein a first function dominates a second function if all the invocations to the second function are originated by the first function; and simplifying the original function call tree according to the function dominator tree so as to obtain a simplified function call tree. According to an embodiment of the present invention, the function call tree for control flow analysis can be simplified.

摘要翻译： 根据本发明实施例的控制流分析方法包括：获取程序的原始函数调用树，其中原始函数调用树的节点表示函数，并且节点之间的父/子关系表示调用关系; 从所述调用关系生成相应的函数支配树，其中所述函数支配树的节点表示所述函数，并且所述节点之间的父/子关系表示支配关系，其中如果对所述第二函数的所有调用都是第一函数，则第一函数支配第二函数 功能起源于第一功能; 并根据功能支配树简化原函数调用树，以获得简化的函数调用树。 根据本发明的实施例，可以简化用于控制流分析的功能调用树。

公开(公告)号：US20240153875A1

公开(公告)日：2024-05-09

申请号：US18054133

申请日：2022-11-09

申请人： INTERNATIONAL BUSINESS MACHINES CORPORATION

发明人： Ruilong Xie ,  Koichi Motoyama ,  Chih-Chao Yang ,  Feng Liu

IPC分类号： H01L23/528 ,  H01L21/28 ,  H01L21/8234 ,  H01L21/8238 ,  H01L23/535 ,  H01L27/06 ,  H01L27/088 ,  H01L29/06 ,  H01L29/417 ,  H01L29/66 ,  H01L29/786

CPC分类号： H01L23/5286 ,  H01L21/28141 ,  H01L21/823475 ,  H01L21/823814 ,  H01L21/823821 ,  H01L23/535 ,  H01L27/0694 ,  H01L27/0886 ,  H01L29/0673 ,  H01L29/41733 ,  H01L29/66553 ,  H01L29/66795 ,  H01L29/78642

摘要： A semiconductor device includes a first source/drain element on a first side of the semiconductor device, a second source/drain element on an opposing side of the semiconductor device, a backside contact including a first contact end on a first end of the first source/drain element and an opposing contact end in electrical communication with a backside power distribution network, a critical dimension of the first contact end is smaller than the critical dimension of the opposing contact end, and the backside contact is substantially aligned to the first source/drain element. The semiconductor device also includes and a source/drain placeholder material with a critical dimension of a middle portion of the source/drain placeholder material being larger than the critical dimension of both tend portions.

公开(公告)号：US20240105614A1

公开(公告)日：2024-03-28

申请号：US17954979

申请日：2022-09-28

申请人： International Business Machines Corporation

发明人： Ruilong Xie ,  Koichi Motoyama ,  Feng Liu

IPC分类号： H01L23/528 ,  H01L21/8238 ,  H01L27/092 ,  H01L29/06 ,  H01L29/417 ,  H01L29/423 ,  H01L29/66 ,  H01L29/775

CPC分类号： H01L23/5286 ,  H01L21/823871 ,  H01L27/092 ,  H01L29/0673 ,  H01L29/41733 ,  H01L29/42392 ,  H01L29/66439 ,  H01L29/775

摘要： A semiconductor structure includes a first via-to-backside power rail having a lower portion and an upper portion. The lower portion is connected to a first backside power rail and has a first width and the upper portion has a second width less than the first width.