{"id":1047,"date":"2025-12-02T13:39:10","date_gmt":"2025-12-02T04:39:10","guid":{"rendered":"https:\/\/rtlearner.com\/?p=1047"},"modified":"2025-12-15T10:58:58","modified_gmt":"2025-12-15T01:58:58","slug":"rtl-engineer-with-process-variation","status":"publish","type":"post","link":"https:\/\/rtlearner.com\/en\/rtl-engineer-with-process-variation\/","title":{"rendered":"[RTL] \uacf5\uc815 \uc0b0\ud3ec(Process Variation)\uc640 Setup\/Hold Time\uc758 \uc0c1\uad00\uad00\uacc4"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">RTL \uc5d4\uc9c0\ub2c8\uc5b4\ub85c\uc11c \ud569\uc131\uc744 \ub3cc\ub9ac\uac70\ub098 STA(Static Timing Analysis)\ub97c \ud558\ub2e4 \ubcf4\uba74 <strong>PVT (Process, Voltage, Temperature)<\/strong> \uc870\uac74\uc774\ub77c\ub294 \ub9d0\uc744 \uadc0\uc5d0 \ub531\uc9c0\uac00 \uc549\ub3c4\ub85d \ub4e3\uac8c \ub429\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&#8220;Worst Case\uc5d0\uc11c Setup \uc7a1\uc558\uc5b4?&#8221;, &#8220;Best Case\uc5d0\uc11c Hold\ub294 \uad1c\ucc2e\uc544?&#8221;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc124\uacc4\ub9cc \ud558\uc2dc\ub294 \ubd84\ub4e4\uc740 \uc774 &#8216;Process&#8217;\ub97c \ub2e8\uc21c\ud788 \ud234\uc5d0\uc11c \uc124\uc815\ud558\ub294 \uc635\uc158 \uc815\ub3c4\ub85c \uc0dd\uac01\ud558\uae30 \uc27d\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc774 \uae00\uc5d0\uc11c\ub294 \uacf5\uc815\uc758 Variation\uc774 \ub3c4\ub300\uccb4 \uc5b4\ub5bb\uac8c \uc124\uacc4\uc758 \ud0c0\uc774\ubc0d(Timing)\uc744 \uc704\ud611\ud558\ub294\uc9c0, \ub450 \ubd84\uc57c\ub97c \uc5ee\uc5b4\uc11c \uc124\uba85\ud574 \ubcf4\ub824 \ud569\ub2c8\ub2e4.<\/p>\n\n\n<style>.kb-table-of-content-nav.kb-table-of-content-id1047_c93a2e-6d .kb-table-of-content-wrap{padding-top:var(--global-kb-spacing-sm, 1.5rem);padding-right:var(--global-kb-spacing-sm, 1.5rem);padding-bottom:var(--global-kb-spacing-sm, 1.5rem);padding-left:var(--global-kb-spacing-sm, 1.5rem);box-shadow:0px 0px 14px 0px rgba(0, 0, 0, 0.2);}.kb-table-of-content-nav.kb-table-of-content-id1047_c93a2e-6d .kb-table-of-contents-title-wrap{padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;}.kb-table-of-content-nav.kb-table-of-content-id1047_c93a2e-6d .kb-table-of-contents-title{font-weight:regular;font-style:normal;}.kb-table-of-content-nav.kb-table-of-content-id1047_c93a2e-6d .kb-table-of-content-wrap .kb-table-of-content-list{font-weight:regular;font-style:normal;margin-top:var(--global-kb-spacing-sm, 1.5rem);margin-right:0px;margin-bottom:0px;margin-left:0px;}@media all and (max-width: 767px){.kb-table-of-content-nav.kb-table-of-content-id1047_c93a2e-6d .kb-table-of-contents-title{font-size:var(--global-kb-font-size-md, 1.25rem);}.kb-table-of-content-nav.kb-table-of-content-id1047_c93a2e-6d .kb-table-of-content-wrap .kb-table-of-content-list{font-size:var(--global-kb-font-size-sm, 0.9rem);}}<\/style>\n\n<style>.kadence-column1047_c62db9-a7 > .kt-inside-inner-col{box-shadow:0px 0px 14px 0px rgba(0, 0, 0, 0.2);}.kadence-column1047_c62db9-a7 > .kt-inside-inner-col,.kadence-column1047_c62db9-a7 > .kt-inside-inner-col:before{border-top-left-radius:0px;border-top-right-radius:0px;border-bottom-right-radius:0px;border-bottom-left-radius:0px;}.kadence-column1047_c62db9-a7 > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column1047_c62db9-a7 > .kt-inside-inner-col{flex-direction:column;}.kadence-column1047_c62db9-a7 > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column1047_c62db9-a7 > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column1047_c62db9-a7{position:relative;}@media all and (max-width: 1024px){.kadence-column1047_c62db9-a7 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column1047_c62db9-a7 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column kadence-column1047_c62db9-a7\"><div class=\"kt-inside-inner-col\">\n<p class=\"wp-block-paragraph\"><strong>\uad00\ub828 \uae00<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2705<a href=\"https:\/\/rtlearner.com\/rtl-post-sim\/\">[RTL] RTL \uc2dc\ubbac\ub808\uc774\uc158\uc740 \uc644\ubcbd\ud558\uc9c0 \uc54a\ub2e4: Post-Sim(GLS)\uc744 \ud558\ub294 \uc774\uc720<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2705<a href=\"https:\/\/rtlearner.com\/rtl-sdf-file\/\">[RTL] SDF \ud30c\uc77c \uc644\ubcbd \ud574\ubd80<\/a><\/p>\n<\/div><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">\uc774\uc0c1\uacfc \ud604\uc2e4<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\uc6b0\ub9ac\uac00 Verilog\ub85c \uc9e0 \ucf54\ub4dc\ub294 \ub17c\ub9ac\uc801\uc73c\ub85c \uc644\ubcbd\ud569\ub2c8\ub2e4. \ud558\uc9c0\ub9cc \uc774\ub97c \uc6e8\uc774\ud37c \uc704\uc5d0 \uc2e4\uc81c\ub85c \uad6c\ud604\ud558\ub294 \uac83\uc740 \ub2e4\ub978 \ubb38\uc81c\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ubc18\ub3c4\uccb4 \uacf5\uc815(8\ub300 \uacf5\uc815)\uc744 \uac70\uce58\uba74\uc11c \uc218\ub9ce\uc740 \ubcc0\uc218\uac00 \ubc1c\uc0dd\ud569\ub2c8\ub2e4. \uc774 \ubbf8\uc138\ud55c \ucc28\uc774\ub97c \uacf5\uc815 \uc0b0\ud3ec(Process Variation)\ub77c\uace0 \ud569\ub2c8\ub2e4. \uacf5\uc815 \uc0b0\ud3ec\ub294 \ud06c\uac8c \ud2b8\ub79c\uc9c0\uc2a4\ud130\ub97c \ub9cc\ub4dc\ub294 <strong>FEOL(Front-End-Of-Line)<\/strong>\uacfc \ubc30\uc120\uc744 \uc5f0\uacb0\ud558\ub294 <strong>BEOL(Back-End-Of-Line)<\/strong> \ub450 \uacf3\uc5d0\uc11c \ubaa8\ub450 \ubc1c\uc0dd\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">(1) FEOL: \ud2b8\ub79c\uc9c0\uc2a4\ud130 \uc131\ub2a5\uc758 \ubcc0\ub3d9<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Photo\/Etching (L\uc758 \ubcc0\ub3d9):<\/strong> \ube5b\uc758 \ud30c\uc7a5 \ud55c\uacc4\ub098 \uc2dd\uac01 \uac00\uc2a4\uc758 \ud750\ub984 \ubd88\uade0\uc77c\ub85c \uc778\ud574 \ud2b8\ub79c\uc9c0\uc2a4\ud130\uc758 Gate Length\uac00 \uc758\ub3c4\ubcf4\ub2e4 \uc870\uae08 \uae38\uac70\ub098 \uc9e7\uac8c \uae4e\uc77c \uc218 \uc788\uc2b5\ub2c8\ub2e4. Gate Length\ub294 \uc18d\ub3c4\uc640 \uc9c1\uacb0\ub429\ub2c8\ub2e4.<\/li>\n\n\n\n<li><strong>Ion Implantation (Vth\uc758 \ubcc0\ub3d9 &#8211; RDF):<\/strong> \ucd5c\uadfc \ubbf8\uc138 \uacf5\uc815\uc5d0\uc11c \uac00\uc7a5 \ud56b\ud55c \uc774\uc288\ub294 RDF(Random Dopant Fluctuation)\uc785\ub2c8\ub2e4. \ucc44\ub110 \uc601\uc5ed\uc5d0 \ub4e4\uc5b4\uac00\ub294 \ub3c4\ud380\ud2b8(\ubd88\uc21c\ubb3c)\uc758 \uac1c\uc218\uac00 \ud1b5\uacc4\uc801\uc73c\ub85c \uba87 \uac1c \ucc28\uc774 \ub098\ub294\uac83\ub9cc\uc73c\ub85c\ub3c4 \ubb38\ud131 \uc804\uc555\uc774 \ud06c\uac8c \ucd9c\ub801\uc785\ub2c8\ub2e4.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">(2) BEOL: \ubc30\uc120 \uc9c0\uc5f0(RC Delay)\uc758 \ubcc0\ub3d9<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>CMP (Deposition &amp; Polishing):<\/strong> \uae08\uc18d \ubc30\uc120\uc744 \uae54\uace0 \ud3c9\ud0c4\ud654\ud558\ub294 CMP \uacf5\uc815\uc5d0\uc11c, \ud328\ud134\uc758 \ubc00\ub3c4\uc5d0 \ub530\ub77c \uc5b4\ub5a4 \uacf3\uc740 \ub354 \ub9ce\uc774 \uae4e\uc774\uace0(Erosion), \uc5b4\ub5a4 \uacf3\uc740 \ub35c \uae4e\uc785\ub2c8\ub2e4(Dishing).<\/li>\n\n\n\n<li>\uc774\ub85c \uc778\ud574 \uae08\uc18d \ubc30\uc120\uc758 <strong>\ub2e8\uba74\uc801<\/strong>\uc774 \ubcc0\ud558\uba74 \uc800\ud56d(R)\uc774 \ubcc0\ud558\uace0, \uc808\uc5f0\ub9c9 \ub450\uaed8\uac00 \ubcc0\ud558\uba74 \ucee4\ud328\uc2dc\ud134\uc2a4(C)\uac00 \ubcc0\ud569\ub2c8\ub2e4. \uc989, <strong>Interconnect Delay<\/strong>\uac00 \uc608\uce21\uacfc \ub2ec\ub77c\uc9d1\ub2c8\ub2e4.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">\ubb3c\ub9ac\ud559: \ubcc0\uc218(Variation)\uac00 \uc18d\ub3c4\ub97c \ub9cc\ub4e0\ub2e4<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">RTL \uc5d4\uc9c0\ub2c8\uc5b4\uc5d0\uac8c \uc911\uc694\ud55c \uac74 &#8220;\uadf8\ub798\uc11c \ud2b8\ub79c\uc9c0\uc2a4\ud130\uac00 \ube68\ub77c\uc838, \ub290\ub824\uc838?&#8221;\uc785\ub2c8\ub2e4. MOSFET\uc758 \uc804\ub958 \uc2dd\uc744 \uc544\uc8fc \uac04\ub2e8\ud788 \ubd05\uc2dc\ub2e4. (Saturation \uc601\uc5ed)<\/p>\n\n\n<style>.kb-image1047_966f3e-7e .kb-image-has-overlay:after{opacity:0.3;}<\/style>\n<div class=\"wp-block-kadence-image kb-image1047_966f3e-7e\"><figure class=\"aligncenter\"><img decoding=\"async\" src=\"https:\/\/blog.kakaocdn.net\/dna\/kFb2h\/dJMb99LDj8Z\/AAAAAAAAAAAAAAAAAAAAAK2uvqQaDVoJg_tkuJJX7sZXry7nsTonlQ4irIuOWwFX\/img.png?credential=yqXZFxpELC7KVnFOS48ylbz2pIh7yKj8&amp;expires=1767193199&amp;allow_ip=&amp;allow_referer=&amp;signature=ij7ZFhaOVx0zMU09jNThLHr7vP0%3D\" alt=\"\" class=\"kb-img\"\/><\/figure><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\uc804\ub958\uac00 \ub9ce\uc774 \ud750\ub978\ub2e4\ub294 \uac83\uc740, \ucee4\ud328\uc2dc\ud130\ub97c \ube68\ub9ac \ucda9\uc804\ud55c\ub2e4\ub294 \ub73b\uc774\uace0, \uc989 \ub3d9\uc791 \uc18d\ub3c4\uac00 \ube60\ub974\ub2e4(Delay\uac00 \uc801\ub2e4)\ub294 \ub73b\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Gate Length \uac10\uc18c:<\/strong> \uc2dd\uac01\uc774 \uacfc\ud558\uac8c \ub418\uc5b4 \ucc44\ub110 \uae38\uc774\uac00 \uc9e7\uc544\uc9c0\uba74? -&gt; \uc804\ub958 \uc99d\uac00 -&gt; <strong>\uc18d\ub3c4 \ube68\ub77c\uc9d0 (Fast)<\/strong><\/li>\n\n\n\n<li><strong>Threshold Voltage (<\/strong>V<sub>th<\/sub><strong>) \uac10\uc18c:<\/strong> \ub3c4\ud551\uc774 \ub35c \ub418\uc5b4 \ubb38\ud131 \uc804\uc555\uc774 \ub0ae\uc544\uc9c0\uba74? -&gt; \uc804\ub958 \uc99d\uac00 -&gt; <strong>\uc18d\ub3c4 \ube68\ub77c\uc9d0 (Fast)<\/strong><\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">\ubc18\ub300\uc758 \uacbd\uc6b0\ub294 \uc18d\ub3c4\uac00 \ub290\ub824\uc9d0(Slow)\uc744 \uc758\ubbf8\ud558\uaca0\uc8e0.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Corner Case<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\ud339(Fab)\uc5d0\uc11c\ub294 \uc6e8\uc774\ud37c \ub0b4\uc758 \ubaa8\ub4e0 \uce69\uc774 \uc815\uaddc\ubd84\ud3ec(Gaussian Distribution) \uc548\uc5d0 \ub4e4\uc5b4\uc624\ub3c4\ub85d \uad00\ub9ac\ud569\ub2c8\ub2e4. \ud558\uc9c0\ub9cc \ud1b5\uacc4\uc801\uc73c\ub85c \uc591\ucabd \ub05d\ub2e8\uc5d0 \uc788\ub294 \uce69\ub4e4\ub3c4 \ubd84\uba85 \uc874\uc7ac\ud569\ub2c8\ub2e4. \uc774\ub97c <strong>Corner<\/strong>\ub77c\uace0 \ubd80\ub985\ub2c8\ub2e4.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>TT (Typical-Typical):<\/strong> NMOS, PMOS \ubaa8\ub450 \ud3c9\uade0\uc801\uc778 \uc18d\ub3c4. (\uac00\uc7a5 \uc774\uc0c1\uc801)<\/li>\n\n\n\n<li><strong>SS (Slow-Slow):<\/strong> \uacf5\uc815 \ubcc0\uc218\ub85c \uc778\ud574 NMOS, PMOS \ubaa8\ub450 <strong>\ub290\ub9ac\uac8c<\/strong> \ub9cc\ub4e4\uc5b4\uc9c4 \uacbd\uc6b0.<\/li>\n\n\n\n<li><strong>FF (Fast-Fast):<\/strong> \uacf5\uc815 \ubcc0\uc218\ub85c \uc778\ud574 NMOS, PMOS \ubaa8\ub450 <strong>\ube60\ub974\uac8c<\/strong> \ub9cc\ub4e4\uc5b4\uc9c4 \uacbd\uc6b0.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">RTL \ud0c0\uc774\ubc0d\uacfc\uc758 \uc5f0\uacb0: Setup vs Hold<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\uc774\uc81c \uc774 \ubb3c\ub9ac\uc801 \ud604\uc0c1\uc774 \uc6b0\ub9ac <strong>Timing Report<\/strong>\uc5d0 \uc5b4\ub5bb\uac8c \ucc0d\ud788\ub294\uc9c0 \ubd05\uc2dc\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">(1) SS Corner (\ub290\ub9b0 \uce69) -&gt; Setup Time Violation<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\uacf5\uc815 \ubb38\uc81c\ub85c \ud2b8\ub79c\uc9c0\uc2a4\ud130\uac00 \ub290\ub9ac\uac8c \ub9cc\ub4e4\uc5b4\uc84c\uc2b5\ub2c8\ub2e4. Data\uac00 Flip-Flop\uc5d0\uc11c \ucd9c\ubc1c\ud574\uc11c combinational logic\uc744 \uac70\uccd0 \ub2e4\uc74c Flip-Flop\uae4c\uc9c0 \uac00\ub294\ub370 <strong>\uc2dc\uac04\uc774 \ub108\ubb34 \uc624\ub798 \uac78\ub9bd\ub2c8\ub2e4.<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\ud604\uc0c1:<\/strong> clock\uc774 \ub3c4\ucc29\ud588\ub294\ub370 \ub370\uc774\ud130\uac00 \uc544\uc9c1 \ub3c4\ucc29\uc744 \uc548 \ud568.<\/li>\n\n\n\n<li><strong>\uacb0\uacfc:<\/strong> <strong>Setup Time Violation<\/strong>. \ub3d9\uc791 \uc8fc\ud30c\uc218\ub97c \ub0ae\ucd94\uc9c0 \uc54a\uc73c\uba74 \uce69\uc774 \ub3d9\uc791\ud558\uc9c0 \uc54a\uc74c.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">(2) FF Corner (\ube60\ub978 \uce69) -&gt; Hold Time Violation<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\uacf5\uc815 \ubb38\uc81c\ub85c \ud2b8\ub79c\uc9c0\uc2a4\ud130\uac00 \ub108\ubb34 \ube60\ub985\ub2c8\ub2e4. Data\uac00 \ub108\ubb34 \uc21c\uc2dd\uac04\uc5d0 \ub2e4\uc74c Flip-Flop\uc73c\ub85c \ub118\uc5b4\uac00 \ubc84\ub9bd\ub2c8\ub2e4.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\ud604\uc0c1:<\/strong> \ud604\uc7ac clock\uc5d0\uc11c \uc7a1\uc544\uc57c \ud560 \ub370\uc774\ud130\ub97c \uc7a1\uae30\ub3c4 \uc804\uc5d0, \ub2e4\uc74c \ub370\uc774\ud130\uac00 \ub36e\uc5b4\uc50c\uc6cc\uc9d0.<\/li>\n\n\n\n<li><strong>\uacb0\uacfc:<\/strong> <strong>Hold Time Violation<\/strong>. Critical Failure \uc785\ub2c8\ub2e4, \uc8fc\ud30c\uc218\ub97c \ub0ae\ucdb0\ub3c4 timing \ubb38\uc81c\uac00 \ud574\uacb0\ub418\uc9c0 \uc54a\uae30 \ub54c\ubb38\uc5d0 buffer\ub97c \uc0bd\uc785\ud558\ub294 \ub4f1 hold fix \uacfc\uc815\uc774 \ud544\uc694\ud569\ub2c8\ub2e4.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">\uacb0\ub860: \uc5d4\uc9c0\ub2c8\uc5b4\uc758 \uc5ed\ud560<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\uc6b0\ub9ac\uac00 \ud569\uc131 \ud234(Design Compiler \ub4f1)\uc5d0\uc11c \ub9c8\uc9c4\uc744 \uc8fc\ub294 \uc774\uc720\uac00 \ubc14\ub85c \uc774\uac83\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>RTL \uc124\uacc4\uc790\ub294 <strong>SS Corner<\/strong>\uc5d0\uc11c\ub3c4 \ub3d9\uc791\ud560 \uc218 \uc788\ub3c4\ub85d \ub85c\uc9c1 \uae4a\uc774(Logic Depth)\ub97c \uc904\uc5ec <strong>Setup Margin<\/strong>\uc744 \ud655\ubcf4\ud574\uc57c \ud569\ub2c8\ub2e4.<\/li>\n\n\n\n<li>\ub3d9\uc2dc\uc5d0 <strong>FF Corner<\/strong>\uc5d0\uc11c\ub3c4 \ub370\uc774\ud130\uac00 \ub108\ubb34 \ube68\ub9ac \uc0c8\uc9c0 \uc54a\ub3c4\ub85d \ubc84\ud37c \ub4f1\uc744 \ud1b5\ud574 <strong>Hold Margin<\/strong>\uc744 \ubc29\uc5b4\ud574\uc57c \ud569\ub2c8\ub2e4.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\ubc18\ub3c4\uccb4 \uacf5\uc815\uc758 \ubd88\uc644\uc804\ud568\uc744 \uc774\ud574\ud558\uba74, \uc65c \uc6b0\ub9ac\uac00 \ud0c0\uc774\ubc0d \uc81c\uc57d(Constraints)\uc744 \uc774\ub807\uac8c \ube61\ube61\ud558\uac8c \uc8fc\ub294\uc9c0 \uc774\ud574\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uacb0\uad6d \uc88b\uc740 \uce69(Yield)\uc744 \ub9cc\ub4e4\uae30 \uc704\ud574 \uc124\uacc4\uc640 \uacf5\uc815\uc774 \ubcf4\uc774\uc9c0 \uc54a\ub294 \uc904\ub2e4\ub9ac\uae30\ub97c \ud558\uace0 \uc788\ub294 \uc148\uc774\uc8e0.<\/p>\n\n\n<style>.kadence-column1047_cb6ce5-4c > .kt-inside-inner-col{box-shadow:0px 0px 14px 0px rgba(0, 0, 0, 0.2);}.kadence-column1047_cb6ce5-4c > .kt-inside-inner-col,.kadence-column1047_cb6ce5-4c > .kt-inside-inner-col:before{border-top-left-radius:0px;border-top-right-radius:0px;border-bottom-right-radius:0px;border-bottom-left-radius:0px;}.kadence-column1047_cb6ce5-4c > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column1047_cb6ce5-4c > .kt-inside-inner-col{flex-direction:column;}.kadence-column1047_cb6ce5-4c > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column1047_cb6ce5-4c > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column1047_cb6ce5-4c{position:relative;}@media all and (max-width: 1024px){.kadence-column1047_cb6ce5-4c > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column1047_cb6ce5-4c > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column kadence-column1047_cb6ce5-4c\"><div class=\"kt-inside-inner-col\">\n<p class=\"wp-block-paragraph\"><strong>\uad00\ub828 \uae00<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2705<a href=\"https:\/\/rtlearner.com\/rtl-post-sim\/\">[RTL] RTL \uc2dc\ubbac\ub808\uc774\uc158\uc740 \uc644\ubcbd\ud558\uc9c0 \uc54a\ub2e4: \uc65c Post-Sim(GLS)\uc744 \ud574\uc57c \ud560\uae4c?<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2705<a href=\"https:\/\/rtlearner.com\/rtl-sdf-file\/\">[RTL] SDF \ud30c\uc77c \uc644\ubcbd \ud574\ubd80<\/a><\/p>\n<\/div><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\ucc38\uace0: <a href=\"https:\/\/anysilicon.com\/understanding-process-corner-corner-lots\/\" target=\"_blank\" rel=\"noopener\">anysilicon<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>As an RTL engineer, when I run synthesis or do STA (Static Timing Analysis), I come across PVT\u2026<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_kadence_starter_templates_imported_post":false,"_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"_kad_post_classname":"","footnotes":""},"categories":[2],"tags":[28,107],"class_list":["post-1047","post","type-post","status-publish","format-standard","hentry","category-rtl-engineer","tag-semiconductor","tag-rtl"],"_links":{"self":[{"href":"https:\/\/rtlearner.com\/en\/wp-json\/wp\/v2\/posts\/1047","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/rtlearner.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/rtlearner.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/rtlearner.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/rtlearner.com\/en\/wp-json\/wp\/v2\/comments?post=1047"}],"version-history":[{"count":6,"href":"https:\/\/rtlearner.com\/en\/wp-json\/wp\/v2\/posts\/1047\/revisions"}],"predecessor-version":[{"id":1145,"href":"https:\/\/rtlearner.com\/en\/wp-json\/wp\/v2\/posts\/1047\/revisions\/1145"}],"wp:attachment":[{"href":"https:\/\/rtlearner.com\/en\/wp-json\/wp\/v2\/media?parent=1047"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/rtlearner.com\/en\/wp-json\/wp\/v2\/categories?post=1047"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/rtlearner.com\/en\/wp-json\/wp\/v2\/tags?post=1047"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}<!-- 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