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Thin-Film Ceramic Substrates

Thin-Film Ceramic Substrates
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Thin-Film Ceramic Substrates Design Guide

We are the largest technical ceramics manufacturer in the world with over 40 state-of-the art facilities on four continents. This means we have the scale, selection of materials, and capabilities to ensure on-time delivery, superior component fit and function, and optimal product life to keep our customers on the road to next-generation technology. CoorsTek has a highly qualified staff to assist with material selection and product design. Please contact us today at +1.303.277.4577 for more information. For general information about CoorsTek, please visit our website at www.coorstek.com....

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Table Il-Standard Thicknesses & Thickness Tolerances Standard Thickness and Common Sizes CoorsTek offers a wide range of sizes and thicknesses. The tables below represent our standard thicknesses and common sizes. Our standard length and width tolerance is ±1%, while standard as-fired thickness tolerance is ±10%. If your requirements are outside those listed below, we can customize our products to meet your needs. 0.060" (1.524 mm) ± 0.006" (0.1524 mm) Not Available Not Available Not Available Sizes below are squares and discs. Contact your Coorstek sales representative for...

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Parts < 1" (25.4 mm) square chip specification: • Resistor - none over 0.0075" (0.1905 mm) • Standard - none over 0.010" (0.254 mm) Substrates measuring 3.5" (88.90 mm) x 3.5" (88.90 mm) or greater typically have a 0.25" (6.35 mm) border around the perimeter for which only chips and cracks are inspected and rejectable.Table IV - Alumina Surface Imperfections for “A” SideVisual Attribute Standard Grade (Conductor, Hybrid) Resistor Grade (Precision Resistor, Hi-Rel, Micro-Rel) Lapped Polished Burrs Fragments of excess material or foreign particle adhering to the surface none allowed none...

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The following are designed to provide engineers with design guidelines, inspection methods, and quality standards for laser machining/profiling, drilling, and scribing of CoorsTek thin-film alumina substrates. These guidelines will aid in optimizing lasered substrate design in order to meet your technical requirements cost effectively. Figure 2 depicts some of our laser capabilities. If a lasered substrate design does not comply with these guidelines, we may still be able to offer options to your specific design requirements. CoorsTek will indicate exceptions to customer drawings and...

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Top View of Laser Hole Laser Scribing CoorsTek offers special differential scribing to enhance preferential singulation. By varying the laser pulse spacing and depth in the (x) and (y) scribe directions, the sequence of singulation may be controlled precisely. Enhanced laser scribing helps to prevent hooking, chipping, and premature breakage - which improves customer process yields. The following figures and tables show typical scribe line configurations and tolerances. Top View of Laser Scribed SubstrateSide View of Laser Scribed Substrate Resultant Segment From Two Broken Edges Laser...

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Table VII-Recommended Laser Scribed Pulse Depth And Spacing Note: Laser pulse depth and laser pulse spacing are reference dimensions. Laser pulse depth and laser pulse spacing can be adjusted to individual customer specifications. Annealing Annealing treatments are also available. For thin-film materials, the customer defines the annealing parameters necessary to achieve specific circuit manufacturing requirements. Tolerances These specifications are based on the application of statistical process control methods to determine multibeam equipment capability to a Cpk 1.33. Dimensional...

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Table IX—Typical Material Characteristics Test Methods Alumina Content Nominal Density Surface Finish (Profilometer) As-Fired Lapped Polished Mircoinches (Nanometers) 0.0004" Radius Stylus 0.030" Cutoff ANSI/ASME B46.1 Grain Size Water Absorption Flexural Strength Elastic Modulus Poisson's Ratio Coefficient of Linear Thermal Expansion Dielectric Constant Dielectric Loss Volume Resistivity ohm-cm ohm-cm ohm-cm ohm-cm ohm-cm Quick-Turn CoorsTek exclusive Prototyping and OpX manufacturing Manufacturing and quality system Certified Environment-Safe Ceramics Charts intended to...

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