I think it might be some kind of early childhood trauma. It feels like being grounded. You have to be sit in a place you don’t really mind, but you would rather be somewhere else. In the beginning you tell yourself that it is actually not that bad. And so you arrange yourself with the situation. You read a bit, listen some music and maybe even have a drink. Your in complete denial.

You can feel it crawling towards you. Silent and vicious, like a dark skinned serpent approaching it prey, it changes everything.Frustration.

You suddenly realise that you are stuck. The door is closed and it seems like you are the only one that didn’t get a key.

You glaze on you watch. Three hours, and still no gate announced. You still sit in the same spot. The scenery is changing constantly, people arriving, people boarding. If you stop focusing your view shapes are blurring, colours are mixing. Faces and voices sublimate into a formless, surreal haze. It makes you dizzy. And aggressive.

But you behave. You tense up. You are afraid that your boiling guts might just rip you apart and kill a few of the unlucky bystanders. So you get up. I give my feed something to do. Displacement activity

Browsing. For the seventh time you scan the covers of magazines that you are never going to buy anyway. And why would you? You are carrying a paper, a book and your work folder already in your bag. Questions arise, who the poor bastard might be that is making a living from dead wood. Dead wood filled with stuff that is just desired only by men and women force by the very same desperation that you are facing at the moment.

Desire! Yes, that’s it. The desire to break free from this nightmare of creeping boredom. The craving for solitary. The yearning for openness of the world on the outside of the terminal. And terminal it is. Hope? All hope vanished when the a woman’s voice for the forth time that your flight will be delay for another hour. You reached a point where not even your hate is left. And you surrender.

“Passengers flying on the BMI flight 5555 to Edinburgh can now board from gate number 8. We apologise again for the slight delay and for any inconvenience caused.”

So use my twitter.

http://www.twitter.com/jensemann

 

I am a hardcore podcast listener and you know that I am sometimes also write some more or less interesting blog entries. I would love the capability to quote sections of certain podcasts to comment on them or to use them as a sources for some statements. But this is a real pain at the moment. You have to write down what the time was of the comment, import the podcast in garageband or any other audio editor at hand, make new file out of it, tag it, upload it and integrate it in you blog post. That means you will not do it, never, ever.

So what I want is a possibility to just jump back a couple of seconds, set a start marker, wait to the end of the quote press again to set an end marker, get the waveform displayed so that i can adjust the waveform by pinching it into the boundaries, than get a text field/Headline field write my short blog entry and than upload it directly from there or if I don’t have a proper connection, let iTunes upload it to my blog while syncing.

Is that asked to much?

Cheers
J

Powderblasting is basically the same then sandblasting just on a smaller scale. Instate of sand you use alumna (Al2O3) powder with a diameter of about 5 to 50 µm. He is applying this to Wafer level packaging. The presented work is on a vargus nerve interface. And the Powderblasting is used for via forming and cavity forming in an silicon wafer.

Transverse and Through silicon vias are possible. For the Bonding itself he recommends Anodic bonding. And the cool thing is that you actually don’t need a cleanroom for the processes.

The mask is a PVA Dryfilm resist. 25µm particles are used. Minimum hole diameter is 140µm (for 140µm thick) in Si. Pitch is determent outer Diameter +40µm. Roughness is about 2µm. They also doing double sided blasting.

Now Natalia Beshchansa is talking about an “Investigation of thick film electronic packaging materials in dynamic contact with artificial body fluids”

It is mainly focusing on implants and the biocompatibility of this thickfilm materials, mostly for packaging and connectivity applications. She is explaining the the potential failure modes. Materials are for example Ag-Pt or Ag-Pd.

The experiment was basically to introduce a flow of artificial body fluids (blood for example) over the samples to analysis the degradation. Very interesting, she is showing the defects of the surface topology appearing over time. And it seems that the fluid building up a layer that first increases the surfaces roughness. Now she is explaining that the materials absorbs quite a lot of Cl and some P and Mg in the Ag-Pt structure. And the films are also oxidised.

Property evaluations of polymers used as housing material for passivation of electronic devices by Eberhard Engeling. After telling us why you have to encapsulate electronics and that he is using Parylene C, Dynamask 5000, Multi-Cure. He is explaining that you don’t get hard data on material properties necessary for medical applications.

One of the properties he is testing for is diffusion properties (permeability). He is actually treating the polymer as a semi permeable membrane between to chambers and and then measuring the ions travelling form one side to the other. He can also provide to provide data o the cell cultivation rate on the polymers.

Kristin Imenes In now talking about “Micro Ribbon Cable bonding for Implantable devices“.

Basically How to wire your pacemaker. The cable so far have been quiet big and chunky. To reduce the size she is suggesting a ribbon cable with 13 Cu Conductors, diameter 45µm ad 71µm pitch(temp-flex) insulation made from PFA (teflon like). Wire stripping is done by laser of plasma etching. Good result were shown by the use of IR/fs laser. Bonding has been don by wire bonding to the gold coated glass substrate of the glued cable (wedge bonding). The flip chip like bonding with non conductive adhesive is beneficial because of the remaining pitch due to the just partially removed insulation.

It is pointed out that plasma etching is has the advantage over Laser ablation , that the wires are not damaged. Wedge bonding (Copper) is working. The non conductive gluing as well, but is showing some critical alignment challenges.

All together this was a very interesting session. Now lunch is on the program.

Well I just installed wordpress for iPhone and I already love it. Great work
Thanks
Jens