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Excellent Hi-Quality Cables made by and / or Supplied By Unitech Electronics Pty. Ltd.

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Current from August 30th 2011
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Current from September 30th 2007

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CIRCUIT BOARD LAYOUT and DESIGN     C.A.D. - just one of our services

Please note - we do NOT mass-manufacture circuit boards, we do however, design
the circuit layouts and prototype single-sided and Double sided P.C.B. to spec.

A more detailed drawing of a six-layer Circuit board

Above is a " reasonable explanation " of a six-layer PTH (Plated Thru-Hole) PCB (Printed Circuit Board). Note the layer names.

A drawing of a multi-layer Circuit board

Above (Fig 1a) is a " quite exaggerated " exposed symbolic picture of a multi-layer thru-hole printed circuit board.
This is only a representation,    whereas in reality,    the process is quite involved and does not have parts on it.

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 As stated, yes, it is an excellent idea to condense a circuit into the smallest possible size thus saving on
 the board's physical dimensions, however....in doing so, there are strict "electronic" rules that govern the 
 passage of electrons along a particular  circuit board track which may induce a new headache that is called 
 cross-talk or "electronic noise" from one circuit to another, please be very aware of these constraints and 
 there are trade-offs in any circuit board layout or design, speed and noise immunity are the most sought after 
 features requiring " ground planes " to shield or rather contain and reduce "cross talk" or high frequency 
 " parasitic " oscillations from one track through a circuit board track to another.

Circuits for all

Ciruit board

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Ciruit board

Ciruit board2Ciruit board3



 OUR SERVICE AND VARIOUS LABOUR RATES 


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    Labour rates   Repairs and modifications   
   AUD$100.00 per hour ( $1.66666 / min)...plus 10% GST.  
      ( calculated as time taken in hours and minutes )  


  Call-Out rates  (That is, we come to your office or workplace)   Repairs and modifications   
                               AUD$ 100.00 per hour ( $1.6666 / min )..plus 10% GST.
  ( Calculated as company time taken in hours and minutes plus $1.80 / Km there and back returning to base ).


  Please note:   For repair work , it is advisable to acquire a correct circuit diagram prior to delivery of your goods 
  or equipment to be serviced and repaired. If one is not supplied, then we will need to do " reverse engineering " 
  of the circuit and tracing it out fully, thus establishing a correct operational circuit schematic diagram to work  
  with for fault finding.   This will cut down wasted time in trying to establish how the circuit works and what faults 
  stop it.   There is no guess-work here.   We do not own a "crystal ball"  and no-one here is called Nostradamus.


P R O T O T Y P I N G


   Labour rates design work  Prototyping ......... AUD$ 100.00 per hour ( $1.6666 / Min )..Plus 10% GST. 
 ( Time taken is calculated in months, weeks, days, hours and /or minutes depending on complexity ) 


 Please Note : Labour rates do not include any materials or components nor do they include GST.
 All parts and materials used are in addition to time spent on the client's behalf to get a project to fruition.

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NOTICE - REPAIRS - BE AWARE - SERVICE - NOTICE

S E R V I C E    and     R E P A I R S
Please be aware, we are not a " results only company ", that is to state as in " only " being paid " only " if the result is goods or equipment works. We accept " your goods " for repair or service in good faith, however if it is found at some stage during the repair(s) that  the said item(s) for repair or service are not going result in a positive working outcome, either due to the age of item(s) or component(s) that are " still now " available in stock, we will advise you of the costs so far in arriving at this conclusion. There are no "Free lunches". All company time is accountable for. This is only fair as where you work, you would not like   be NOT PAID as a result of a project or job not working out right and your boss telling you, " tough luck mate...it did not work so no pay for the hours wasted on trying to get it going".

We require payment for company time spent on your behalf working on your goods or equipment   irrespective of the final results that the item(s) in question are working. We strive for perfection   in servicing and repairs, however there are times where component tolerances change over the    years, thus often resulting in undesirable "hard to diagnose" faults along with stray capacitances    and weird parasitics etcetera, plating "growths and spurs" that creep into circuits boards over time.  

This rule (above) does not apply to goods or products manufactured by us, here at  Unitech Electronics Pty. Ltd. We support our own manufactured goods & equipment   with stocks of quality original " backup service " parts for up to 5 years

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There are Circuit Rules


What is involved in a simple design, taking an idea or concept through to a completed product

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Flow chart on Ciruits

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Please note - we do NOT "mass-manufacture" circuit boards, we do
however, design the circuit layouts and single-sided prototypes.

Unitech Electronics Pty Ltd is your one stop "global shop" for all your "computer" and "Electronic"
Hardware solutions , we design and manufacture for you.         We make it happen for you!

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