NEW PATENT -METHOD OF FORMING AN HERMETIC SEAL ON ELECTRONIC AND OPTOELECTRONIC PACKAGES

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.

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The groundbreaking innovation of the POET Optical Interposerβ„’ is summarized in this quote by CEO Dr. Suresh Venkatesan. Scalable hybrid integration brings reduced cost and improved performance to the optoelectronics industry.
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Hi, is there Anyone here with background in optoelectronics avalaible to make a technical asssesment of POET interposer platform?
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POET Technologies Teams-up with SiLUX Technologies to Demonstrate its 400G Optical Engine during China International Optoelectronics Exhibition

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Was given these AEA SWR121 antenna analyzers. They power up but the screen is bad. Device on the left is an Optoelectronics 1300H/A. Any of this useable at all?
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Icom, Swan, Yaesu, Kenwood, Optoelectronics, AEA, and Radio Shack items for sale

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

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$AAOI Applied Optoelectronics stock

$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

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MS in Electrical Engineering (specialising in Nano and Optoelectronics) at University of Stuttgart.

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!

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AAOI Applied Optoelectronics undervalued play

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.Β 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.

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FS: Kenwood BC-7 Rapid Charger, Swan VX-2 vox unit, Optoelectronics frequency counter, assorted variable capacitors

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

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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.

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https://ift.tt/3uQs4IL

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