diff --git a/doc/xschem_man/tutorial_xschem_slides.html b/doc/xschem_man/tutorial_xschem_slides.html
index 44038540..6a81d6e2 100644
--- a/doc/xschem_man/tutorial_xschem_slides.html
+++ b/doc/xschem_man/tutorial_xschem_slides.html
@@ -21,7 +21,7 @@ p{padding: 15px  30px 10px;}
 
  <!-- slide title -->
  <h1><a href="http://repo.hu/projects/xschem">XSCHEM</a> - CIRCUIT SCHEMATIC EDITOR<br>FOR VLSI - ASIC - PCB DESIGN</h1>
- <h2 style="max-width: 66%;margin-left:10px;">Submitted to F-si.org - Free Silicon Foundation Conference 2020</h2>
+ <h2 style="max-width: 66%;margin-left:10px;">Submitted to F-si.org - Free Silicon Foundation Conference 2022</h2>
  <h3 style="text-align:left; max-width: 70%;margin-left:0;">
   <ul style="margin-left:0;">
    <li>Hierarchical representation of circuits.</li>
@@ -34,6 +34,7 @@ p{padding: 15px  30px 10px;}
    <li>TCL API for forward / backward annotation to / from 3rd party EDA software.</li>
    <li>Works on most unix-likes.</li>
    <li>Native Windows port available.</li>
+   <li>Xschem is the schematic editor used for the skywater PDK open source analog hardware design.</li>
   </ul>
  </h3>
  <img src="tutorial_xschem_slides01.png" style="position:fixed; top:20%; right:2%;max-width: 30%;border: 1px solid">
diff --git a/doc/xschem_man/tutorial_xschem_slides01.html b/doc/xschem_man/tutorial_xschem_slides01.html
index 3491c9e0..3bade03e 100644
--- a/doc/xschem_man/tutorial_xschem_slides01.html
+++ b/doc/xschem_man/tutorial_xschem_slides01.html
@@ -32,6 +32,7 @@ p{padding: 15px  30px 10px;}
    <li><a href="tutorial_xschem_slides07.html">Instance attributes and parametrized subcircuits</a></li>
    <li><a href="tutorial_xschem_slides08.html">Simulation</a></li>
    <li><a href="tutorial_xschem_slides083.html">Wave viewing</a></li>
+   <li><a href="tutorial_xschem_slides084.html">Skywater 130nm PDK integration</a></li>
    <li><a href="tutorial_xschem_slides085.html">Roadmap</a></li>
    <li><a href="tutorial_xschem_slides09.html">Conclusions</a></li>
    <li><a href="tutorial_xschem_slides10.html">Contacts</a></li>
diff --git a/doc/xschem_man/tutorial_xschem_slides083.html b/doc/xschem_man/tutorial_xschem_slides083.html
index 9572889b..a52487c2 100644
--- a/doc/xschem_man/tutorial_xschem_slides083.html
+++ b/doc/xschem_man/tutorial_xschem_slides083.html
@@ -16,7 +16,7 @@ p{padding: 15px  30px 10px;}
 <!-- navigation buttons -->
 <a href="tutorial_xschem_slides0812.html" class="prev">PREV</a>
 <a href="tutorial_xschem_slides01.html" class="home">UP</a>
-<a href="tutorial_xschem_slides085.html" class="next">NEXT</a>
+<a href="tutorial_xschem_slides084.html" class="next">NEXT</a>
 
 
  <!-- slide title -->
diff --git a/doc/xschem_man/tutorial_xschem_slides084.html b/doc/xschem_man/tutorial_xschem_slides084.html
new file mode 100644
index 00000000..3866f319
--- /dev/null
+++ b/doc/xschem_man/tutorial_xschem_slides084.html
@@ -0,0 +1,33 @@
+<!DOCTYPE html>
+<html>
+<head>
+<title>XSCHEM PRESENTATION</title>
+<link rel="stylesheet" type="text/css" href="xschem_man.css" />
+<style type="text/css">
+/* Local styling goes here */
+p{padding: 15px  30px 10px;}
+.content{ background-image:url('xschem_bg2.png');}
+</style>
+
+</head>
+<body>
+<!-- start of slide -->
+<div class="content">   
+<!-- navigation buttons -->
+<a href="tutorial_xschem_slides083.html" class="prev">PREV</a>
+<a href="tutorial_xschem_slides01.html" class="home">UP</a>
+<a href="tutorial_xschem_slides085.html" class="next">NEXT</a>
+
+
+ <!-- slide title -->
+ <h1 style="max-width: 80%;">SKYWATER 130nm PDK INTEGRATION</h1>
+
+ <!-- end of slide -->
+ <div class="filler"></div>
+</div>
+
+<!-- frame footer -->
+<iframe seamless src="xschem_footer.html"  class="footer_iframe" >
+</body>
+</html>
+
diff --git a/doc/xschem_man/tutorial_xschem_slides085.html b/doc/xschem_man/tutorial_xschem_slides085.html
index 8ec88193..ace38220 100644
--- a/doc/xschem_man/tutorial_xschem_slides085.html
+++ b/doc/xschem_man/tutorial_xschem_slides085.html
@@ -14,7 +14,7 @@ p{padding: 15px  30px 10px;}
 <!-- start of slide -->
 <div class="content">   
 <!-- navigation buttons -->
-<a href="tutorial_xschem_slides083.html" class="prev">PREV</a>
+<a href="tutorial_xschem_slides084.html" class="prev">PREV</a>
 <a href="tutorial_xschem_slides01.html" class="home">UP</a>
 <a href="tutorial_xschem_slides09.html" class="next">NEXT</a>
 
diff --git a/doc/xschem_man/tutorial_xschem_slides10.png b/doc/xschem_man/tutorial_xschem_slides10.png
index 45a42d94..b0585b74 100644
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