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Saturday, March 18, 2006

Finish Product.

After 9 full weeks, the project is finally completed. Here are the finish product.


The Dummy IC + Circuit.


The Dummy IC.

And also, we did a short documentary on how the IC would actually be used in application. Sadly some portion of the video the voice couldn't be heard clearly. Here's the video anyways.


Thursday, March 16, 2006

Prototype Completed. Poster Completed.

After spending 2 full days in the lab until late evening, the prototype and poster is finally completed. The prototype is fully working with the circuit and the poster has been designed and will be printed by this weekened to be presented.

On the 15th of March, the group done the soldering of the internal circuitry, fixing the IC legs and the IC Dye. Soldering was mainly done by Yang while the IC Dye was done by Tong Jiun. The cutting of the IC Legs as well as the IC connectors from the IC leg to the IC Dye was done by me.

On the 16th of March, the group started soldering the extended wires from the Circuit to the Real IC attachted to the bottom of the Dummy IC. Extended wires were needed as the current length of the wire was too short to display the Circuit properly. While I was helping Jin Yang with the soldering, Tong Jiun was working on the 2nd layer of the IC Dye. After that, we tested the IC Circuit and it worked. Apart from that, it is also discovered that the circuit would also work when it is conducted by a human body. This is because circuit only requires very little current to complete the circuit. However, this method does not work with everyone who tested by holding both terminals with separate hands. This is due to the difference of resistance in different human body and also the moisture of the contact point of the terminal and the human body. It is noticed that the more moisture the contact point is, the higher frequency of beeps is generated. Thus an idea was generated that this could actually be used as a gimmick to attract interest from regular people so that they would be more interested into knowing on how does an IC actually functions. The plan was to create a simple 'love-0-meter' that is able give responses when two people are holding each terminals while holding each other's hands. If the speaker is able to give a periodic beep then they are meant to be together. Else, they are not a good match. After the test, questions of how does this 'love-0-meter' work is highly expected. Thus, we are then able to move on to the details on how the IC actually works.



Tong Jiun Flattening the surface of aluminium.


Jin Yang glueing the connecters to on the Dummy IC surface.

I'm the cameraman! =]



This is the poster that has been designed by the groupmates.
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DCR (Dummy IC)

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Thursday, March 09, 2006

A Day at the Mechanical Workshop.

Yesterday the groupmembers Tong jiun, Jin yang and I stayed back to finish up what's left of the prototype construction. Most of the things done yesterday were the cutting of the arcylic as well as the soldering of the wires so that the real IC will be able to fit at the bottom of the Dummy IC. The arcylic will be used as the casing for the Dummy IC as well as to demosntrate the layers of wafer in an IC Dye. Tongjiun & I was in charge of cutting the arcylic while jin yang was in charge of doing the soldering works. there were no exact measurements for the arcylic case as the dimensions of the Dummy IC was not exact as there as a standard deviation of roughly 0.2mm. A hand saw was used to cut the arcylic. To make the case fit the Dummy IC, the arcylic was further sand papered to trim it's width & length a little bit.

Rough measurements of the arcylic sheet:
1 x [26.9x19.7] cm
2 x [26.9x7.2] cm
1 x [8x8] cm
2 x [8x2] cm

The finishing touch of the prototype will be done by tong jiun. jinyang and i will be working on the poster by the end of the week.


Jin Yang working on the soldering.


Tong Jiun cutting the pieces of arcylic.


That's me working on the arcylic as well.

Monday, March 06, 2006

Progress of the Project.

This will be a short post. The group has completed the presentation regarding the progress of the project. Feel free to download the presentation if you want to have a look at it. Link Here! The main part of the presentation is done by me but it is then seperate into 3 parts where me, jin yang and tong jiun are presenting individually where each group member edited the slides of their own section and then we combined all of them to make a full presentation.

Sunday, March 05, 2006

Change of Prototype Material.

After testing the prototype with the Plaster of Paris, it is found that the material is not suitable for the contruction of the Dummy IC. This is because the group faced many problems in using the material which are:

1. The prototype created is very uneven because there is no proper mould to make it. (shoebox was used)
2. The material is too heavy. This is cause problem during transportation as well as the contruction of the Dummy IC's legs.
3. The material takes too long to dry. After leaving the prototype in open air for a week. It is still wet. And thus not suitable for spraying colour.
4. Colour spray doesn not absorb evenly on the surface of the Dummy IC. This is related to the wetness of the surface of the Dummy IC.

After dropping the plans to build the prototype with Plaster of Paris, A new material is then chosen to construct the Dummy IC. Wood. These are the reaons why wood was chosen:

1. The surface of the prototype that is contructed is even this is because wood is properly cut flat.
2. The material although heavy, but it was not as heavy as the pervious prototype material which was Plaster of Paris
3. The material is ready for spraying immediately.


The prototype with it's leg placed for measurement.


The spacing between the wood to make way for the IC Dye and the insides of the Dummy IC