Effects of COOH Groups in Filled Silicone Rubber Compounds
COOH carboxyl groups are polar functional groups that can affect the processing, curing, and final properties of filled …
What Is Atomic Orbital Hybridization?
Ordinary s and p orbitals alone do not explain some molecular structures. Methane, CH₄, has four equivalent C–H bonds …
Covalent and Coordinate Covalent Bonds
A covalent bond forms when two atoms each contribute one electron to create a shared electron pair. Common between …
Ashing in Semiconductor Processing
Ashing is a dry process that uses plasma to remove photoresist. After photolithography and etching, residual photoresist …
UPDI Water in Semiconductor Manufacturing
UPDI (ultrapure deionized water) is a water purity grade rather than a separate chemical substance. It is an essential …
Conductive Pathway Theory
Conductive pathway theory examines how conductive paths form in composites and how electrical properties relate to …
Phonon Transport Theory
Phonon transport theory describes wave propagation and energy transfer in crystals. Atoms or molecules in a solid form a …
Tyndall Effect
The Tyndall effect makes a light beam visible through scattering by fine particles suspended in a gas or liquid. The …
Amphoteric Oxides
Amphoteric oxides react with both acids and bases to form salts and water. Al2O3 + 6HCl = 2AlCl3 + 3H2O; Al2O3 + 2NaOH = …
Open Questions in the Elasticity of Silicone Rubber Pads
Glass-fibre reinforced silicone pads serve as PCB press cushions, yet rubber elasticity theory still has open questions: …
Thermal Conductivity of Common Materials and a Heat-Flow Example
Thermal conductivity, in W/(m·K), shows how readily a material conducts heat. Reference values for common materials, …
Thermal Conductivity Testing: Steady-State Heat Flow Method (ASTM D5470)
ASTM D5470 steady-state testing measures thermal resistance and derives conductivity from a linear fit across …