ENTROPY LTD LLC

 Philip C Young is the President/founder of Entropy LTD LLC  with 31 years of Technical Experience in Chemistry, Materials and Process Engineering.

    This includes recent work as a research fellow at NASA AMES developing a novel gas sensor based on nano composite materials.  This melding of solid engineering experience combined with the ability to perform novel research is a unique capability that helps to deliver workable solutions to your business.

Below are Representative accomplishments:

     1)  Semiconductors:

          Company : Astec Semi Conductor

              Problem:  Reference voltage remains high after mil std. temp/humidity test.

              Cause;  Residual Cations from detergent thermally diffused to implanted resistor bank,  which proved to be too shallow by several microns.

              Techniques used:  ESCA, XPS, TOF SIMS and various electrical testing.

              Synopsis:  Electrical testing showed capacitance intially turning to resistive post heating.  Schematic showed bank of resistors as potential cause for voltage change.  Subsequent analysis of implanted resistors indicated they were too shallow. Dynamic SIMS of wafer pre-implantation had measurable Potassium.  Clearly improper rinsing of wafer responsible for voltage increase.

       2)  BioMedical:

          Company:  Molecular Dynamics:

              Problem:  High background from residual Polyimide reduced sensitivity of DNA fluorescence cell counter.

           Cause:  Existing chemical method left highly absorbing regions.

           Techniques used:  TOF SIMS, Laser Fluoremetry

           Synopsis:  Developed proprietary new method employing both acid and base which generated heat and free radicals to effectively remove polyimide.  Fluorescence increased by 1000 X post new process.

•  Our Business

  Engineering is about finding simple solutions; ENTROPY LTD combines intuitive with emperical and solid science to find that simple solution.

  We are a small company that specializes in Ultra High Vacuum systems design, electro optical packaging design, process engineering, micro contamination control, brazing and chemical cleaning. Having successfully served over 23 clients over the last 15 years across multiple disciplines- from Semiconductor to Mems to the Laser industry to Biomedical-innovative solutions are our business. 

   From increasing product lifetimes from 3 months to 2.5 years to reducing residual moisture from 5% to less then 60 ppm.  To eliminating thermal optics to finding the right optical epoxy for your application.  We have your solutiojn.

   Unique in the industry we guarantee our work.  You don't pay your retainer fee if we have not solved your problem.  No other consulting company ever does that!!!

   * Ask for our brochure with more examples of problems solved.

Satisfied Clients:

Spectra Physics Lasers

Astec Semi Conductor

Uniphase Lasers

EverGreen Lasers

De La Rue Giori

Conductus

Molecular Dynamics

Laserscope

Trumpf Photonics

Oxford X Ray

ILC Technologies - Now Philips Electronics