CFN Virtual Colloquium

"Using Soft-Matter Physics for Nanopatterning and Nanofabrication"

Presented by Dr. Ricardo Ruiz, Lawrence Berkeley National Laboratory

Thursday, September 3, 2020, 4:00 pm — BlueJeans Event:

Macromolecular self-assembly has evolved to become an important and valuable tool for bottom-up patterning and fabrication at the nanometer scale. From block copolymer lithography to nanocrystal superlattices to biomolecular assemblies, bottom-up patterning is reaching an unprecedent level of control over complex patterns at the nanoscale with an increasing degree of precision. There is no question that the lithographic landscape has been transformed in the past few years with the introduction of extreme ultraviolet (EUV) lithography and the maturity of multiple patterning techniques. At dimensions below 10 nm, emphasis is shifting away from resolution to precision, highlighting the importance of the uniformity achieved by block copolymers and the exquisite precision afforded by biomolecular assemblies. Moreover, an opportunity may be opening for new, higher complexity, information-rich architectures where hybrid nanoparticle-(bio)molecule assemblies may shine. With features defined at the molecular level and the potential to modular and hierarchical structures, self-assembly offers a path to highly uniform, 2D and 3D architectures. In this talk I will review the current state of bottom-up patterning with soft matter and I will discuss research plans at The Molecular Foundry related to molecular-scale assembly hoping we can foster collaborations across the various NSRCs.

Bio-sketch: Dr. Ricardo Ruiz is a Staff Scientist at Lawrence Berkeley National Laboratory where he uses Soft Matter Physics to solve nanofabrication challenges at the single-digit nm scale. From 2006 to 2019 he held various appointments at Hitachi GST/ HGST/ Western Digital where he contributed to magnetic bit patterned media and non-volatile memories, and he managed a research Group dedicated to block copolymer and nanoparticle lithography. He received his PhD in Physics from Vanderbilt University in 2003. He is a Fellow of the American Physical Society.

To join, select from the following options:

1) Web Browser

2) Laptop paired with room system (Best Experience)
a) Dial: or in the room system.
b) Go to
c) Enter the pairing code displayed on your room system screen into your browser.

3) Room System
a) Dial: or in the room system.
b) Enter Meeting ID: 149812585 and Passcode: 5815

4) Joining via a mobile device?
a) Open this link :
b) Download the app if you don't have it already.
c) Enter event ID : ygxfdcgf

5) Phone
Dial one of the following numbers, enter the participant PIN followed by # to confirm:

+1 (415) 466-7000 (US)
PIN 9862228 #

+1 (760) 699-0393 (US)
PIN 2298814590 #

6) Joining from outside the US?

Hosted by: Chang-Yong Nam

15861  |  INT/EXT  |  Events Calendar


Not all computers/devices will add this event to your calendar automatically.

A calendar event file named "calendar.ics" will be placed in your downloads location. Depending on how your device/computer is configured, you may have to locate this file and double click on it to add the event to your calendar.

Event dates, times, and locations are subject to change. Event details will not be updated automatically once you add this event to your own calendar. Check the Lab's Events Calendar to ensure that you have the latest event information.