METHOD OF FORMING AN HERMETIC SEAL ON ELECTRONIC AND OPTOELECTRONIC PACKAGES Publication number: 20210389532
Abstract: A method for forming hermetic seals between the cap and sub-mount for electronic and optoelectronic packages includes the formation of metal mounds on the sealing surfaces. Metal mounds, as precursors to a metal hermetic seal between the cap and sub-mount of a sub-mount assembly, facilitates the evacuation and purging of the volume created within cap and sub-mount assemblies prior to formation of the hermetic seal. The method is applied to discrete cap and sub-mount assemblies and also at the wafer level on singulated and non-singulated cap and sub-mount wafers. The method that includes the formation of the hermetic seal provides an inert environment for a plurality of electrical, optoelectrical, and optical die that are attached within an enclosed volume of the sub-mount assembly.
Type: Application
Filed: August 23, 2021
Publication date: December 16, 2021
Inventors: Yee Loy Lam, Suresh Venkatesan, Long Cheng Koh
My comment: You need hermetic sealing for mechanical protection, thermal dissipation, prevent intrusion for moisture particles, protect against electrical fields, .... You need it in environments like Telekom (5G), Automobiles, Robotics, sensing, high tech applications, etc. POET is doing this at WAFER LEVEL. This is genius.
Novel 2D colloidal nanocrystal for optoelectronic and solar cell applications Recently, 2D material has attracted tremendous attention due to their fascinating physicochemical properties. Particularl.
Press release: https://www.globenewswire.com/news-release/2021/09/09/2294258/0/en/POET-Technologies-Teams-up-with-SiLUX-Technologies-to-Demonstrate-its-400G-Optical-Engine-during-China-International-Optoelectronics-Exhibition.html
Many items from a SK estate. Prices do NOT include shipping! Located in Richardson, TX 75028
Pictures here: https://imgur.com/a/ghdwRN7
AEA SWR-121 HF - Powers up, keys beep, but screen doesn't work. For parts or repair $30 SOLD
AEA SWR-121 VHF/UHF - Powers up, keys beep, screen does not work. Comes with original box. $30 SOLD
Optoelectronics 1300H/A Frequency Counter - powers up, holds charge, no further testing done. $50
Icom u2AT (micro 2AT) with Speaker Mic - Also comes with battery and antenna, no belt clip. Tone encoder and keypad works, can key up local repeater. holds charge but battery is old. Note, callsign from a previous owner engraved on back, but blurred out in pictures. $45 SOLD
Radio Shack Pro 92 Scanner - Cellular blocked, works great on analog FM and some trunking systems. Cell frequencies blocked. $60 SOLD
Swan VX-2 Vox Unit - Untested, but inside looks clean. $30 SOLD
Kenwood TH-225A - Receive only, transmit does not work, or is very very minimal at best. $15 SOLD
Yaesu MH31 Microphone - 8 pin connector, Untested but in excellent cosmetic shape. $30 SOLD
$AAOI Applied Optoelectronics stock watch attempting to move higher off the lower 7.06 triple support area, volume 43.8% above normal , see https://stockconsultant.com/?AAOI
AAOI Applied Optoelectronics stock chart
#finance #money #wallstreet #stockmarket #stocks
I have been granted admission to MS in Electrical Engineering (specialising in Nano and Optoelectronics) at University of Stuttgart and wanted to know more about the course and the faculty.
How good is the university, how good is the teaching and professors and most importantly how good is the research work that is done.
Are there any practical or lab classes/subjects in the curriculum?
Do you get to persue your own research as a student?
Are you satisfied with the course and college overall?
Also I have applied for the MS in Microsystems Engineering at University if Freiburg. Which among these two would you suggest?
Thanks a lot for the help!
Hey there ladies and gents, I like to shop seeing for value plays in the market and came across this company AAOI Applied Optoelectronics Inc.
What do they do? Applied Optoelectronics, Inc. designs, manufactures, and sells various fiber-optic networking products worldwide. It offers optical modules, lasers, subassemblies, transmitters and transceivers, and turn-key equipment, as well as headend, node, and distribution equipment.
AAOI is currently trading at $7.22 with a market cap of $193 million dollars. Revenue on this company is sitting at $243 million in the last 12 months. Assets are sitting at 480 million dollars and liabilities are sitting at 203 million dollars. Current assets are sitting at 209 million and current liabilities sitting at 103 million giving it a current ratio of about 2 which is pretty solid and no chance of bankruptcy in the next two years. If you notice here, the book value is sitting at approximately 280 million dollars which is about 40% above its current trading price. Meaning, if AAOI liquidated everything today it would put them at a price of approximately $10.10 per share.
What's the catch here? Earnings is coming up on August 5th, which could tell a different story and make it decrease it's book value. However I don't see the earnings being so drastic to bring the current valuation down much. They are expected to have a revenue of $54 million and a $0.17 per share loss this quarter. If they manage to beat these numbers then I would expect to see quite a significant increase in share price, especially considering it being a very small cap stock(good candidates for blast off). Finally, do your own due diligence before trading. Have a great day.
All items ship from Richardson, TX 75028 Pictures available. Will edit this post when Imgur stops throwing errors.
Kenwood BC - 7 Rapid charger with original box and packing materials $50 shipped within the continental US.
Swan VX-2 vox unit - Two available. $40 shipped per unit, or $70 shipped for both
Optoelectronics 1300 H/A frequency counter - $40 shipped SOLD
Two small variable capacitors - National - 8.5-28.4 pf. and Hammerlund (?) 14.5pf - 31.7pf $30 shipped
One large butterfly variable capacitor. 10.3 - 51.7 pf. Note the rotors are on two shafts that move independently. $30 shipped
As the title states, my end goal is to work in some sort of photonics-based engineering, ideally with lasers and optics. I am very passionate about this area of work.
I would like to know how I could use my personal time to make myself more employable. Specifically, are there any simulation software or tools that those in the industry would value knowledge of? (For example, if there are simulation tools or software that I could learn and create a project for myself, this would be ideal.) I have done a considerable amount of scientific programming and basic gaussian beam simulations in MATLAB and Python, so I am looking for something more comprehensive–closer to a tool such as COMSOL.
Any help from those knowledgeable in this area would be truly appreciated.
2D metal-organic framework (MOF) film as active layer show promising application prospects in various fields including the sensors, catalysis, and electronic device. However, exploring the application of 2D MOF film in the field of artificial synapses has not been implemented yet. In this work, we fabricated one kind of novel monolayer MOF film (Cu–THPP, THPP = 5,10,15,20-Tetrakis(4-hydroxyphenyl)-21H,23H-porphine), and further used it as an active layer to explore the application in the simulation of human brain synapses. It shows excellent light-stimulated synaptic plasticity properties, and exhibits the foundation function of synapses such as long-term plasticity (LTP), short-term plasticity (STP), and the conversion of STP to LTP. Most critically, the MOF based artificial synaptic device exhibit an excellent stability in atmosphere. This work opens the door for the application of MOF film in the simulation of human brain synapses.
https://ift.tt/3uQs4IL
Novel 2D colloidal nanocrystal for optoelectronic and solar cell applications Recently, 2D material has attracted tremendous attention due to their fascinating physicochemical properties. Particularl.
