Who are Semelab plc ? • Privately-Owned UK Company • Established 35 years • Grown year -on- year • Profitable every year • Based in Glenrothes, Scotland • Acquired 15 years ago • Key focus – Mixed-signal A.S. I.C.s • MEMS & NanoMems • In house die supply • Based at Lutterworth, Leics. • Own diffusion fab – Semefab
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Who are Semelab plc ? Privately-Owned UK Company Established 35 years Grown year -on- year Profitable every year Based in Glenrothes, Scotland Acquired.
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Who are Semelab plc ?
• Privately-Owned UK Company• Established 35 years• Grown year -on- year• Profitable every year
• Based in Glenrothes, Scotland• Acquired 15 years ago• Key focus – Mixed-signal A.S. I.C.s• MEMS & NanoMems
• In house die supply
• Based at Lutterworth, Leics.
• Own diffusion fab – Semefab
Today solutions:- World wide producers are designing the next generation of commercial airliners
Boeing 787 Dream liner and Airbus A380 & A350 Tupolev TU334, Sukholi Superjet 100
Typical these are designed to have a 20 % reduction in fuel consumption and subsequent emissions, while offering exceptional noise reduction while in flight
This is achieved by the extensive use of the following:-• Composite bodies over 50% saving in the use of aluminium• Power electronic cooling system• Electronic braking rather than hydraulic• HID/ LED lighting• Advance Electronic Flight control and wing surfaces
All items marked in red supplied by Semelab
M.O.E.TMore Open Electrical Technology
A European commission led program to develop the next generation of electric aircraft
Main partners:-•Airbus•Goodrich•Safran Group•Leibherr •Rolls Royce•Semelab
Semelab have optimise standard plastic module for aircraft use in order to achieve the following:-
• Low weight typical 66% of the weight of conventional modules• Enhanced performance designed to last for a 25 year aircraft life
• Typically survives 2500 temperature cycles from -50 C - +150 Deg C
Typical constructions consist of:-• Lightweight metal matrix base plate
•CTE of 7 p.p.m• A.M.B substrates
•CTE of 6 p.p.m•State of the art die
•CTE of 4.5 p.p.m•Custom die coats and encapsulates
It can be see that our structure as a very closely match vertical C.T.E structure and hence the stress in the module is kept to a minimum.
In Flight ComfortState of the art electronics offer better air conditioning approx 20 % improvement on air circulation time
While building on Semelab world beating “D” Class Amplifiers, Anti noise system will be developed to ensure a more comfortable and relaxing flight
The same technology can also be used provide high efficiency power supplies in aircraft for your laptop Ipod or PDAPlease note the anti noise
system could also be used in Industrial or
office based systems
Hermetic packages for the future
Typical module construction for today’s application:-• Copper or copper base plate • Kovar ring frame• ALN substrate • Expensive glass or ceramic - metal seals
• Removal of glass/ceramic seals – HermeticityHermeticity• Minimised number of wirebonds – ReliabilityReliability• Size/Weight reduction – EfficiencyEfficiency
FEATURES :• AMB (active metal brazed) • Hermetic Substrate Package• Copper conductors• Si3N4 Insulator• No glass/ceramic seals • Comparable thermal resistance to AlN
SI3N4 Via connectivity “state of the art” packaging
• Production Alumina DBC (Cu metallization) – 500(max) temp cycles -55°C to 125°C expected before conchoidal fractures appear
»(Source: Semelab Plc)
• Production AlN AMB (with Al metallization)– 2000 temp cycles passed -55°C to 125°C without fracture or delamination
(Source: Semelab Plc)
• AMB Silicon Nitride (Cu metallization)– 5000 temp cycles passed -60°C to 175°C without fracture or delamination
– 2000 temp cycles passed -65°C to 150°C without hermiticity failure
(Source: Kyocera Corp
Semelab parts under qualification)
• Alumina DBC package (no baseplate) – 0.3/0.635/0.3mm Cu/Al2O3/Cu
– 1.24 °C/W1.24 °C/W
• AlN AMB package (no baseplate)– 0.3/0.635/0.3mm Al/AlN/Al