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Cinderblock Passive Component for Mechanical Functions

IP.com Disclosure Number: IPCOM000022678D
Publication Date: 2004-Mar-25
Document File: 3 page(s) / 45K

Publishing Venue

The IP.com Prior Art Database

Abstract

Disclosed is a method for a cinderblock-like passive component. The holes in this component, are filled with solder, and enables it to be attached to a PCB without taking space and providing a spacer. Benefits include using the component as a standoff, without wasting X-Y space.

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Cinderblock Passive Component for Mechanical Functions

Disclosed is a method for a cinderblock-like passive component. The holes in this component, are filled with solder, and enables it to be attached to a PCB without taking space and providing a spacer. Benefits include using the component as a standoff, without wasting X-Y space.

Background

Passive components are sometimes used as standoffs in PCB applications (see Figure 1). Stand-offs or spacers are typically manufactured using standard MLCC processing techniques. There is no difference between a spacer and an MLCC. From a component selection perspective, only the mechanical and dimensional attributes of the spacer/MLCC are considered. Electrical properties of the spacer/MLCC can be ignored.

Spacers/MLCCs are usually two-terminal ceramic (i.e. BaTiO3 based) capacitors that are manufactured in a lamination process that yields a solid rectangular component. The lamination process produces a multiple layer component consisting of alternating ceramic/dielectric and metal/electrode layers. The typical process flow for a standard MLCC is as follows:

1.      Ceramic and electrode material formulation and mixing

2.      Ceramic and electrode layer build-up

3.      Dicing

4.      Ceramic firing

5.      Termination dipping

6.      Termination cure

7.      Plating

8.      Visual and electrical inspection

9.      Packaging

General Description

The disclosed method enables a passive component to be used on a PCB while reducing the space used by the component in the X-Y direction. T...