Chip Geometries and Configurations
Compex maintains a stock inventory of our dielectrics in wafer form. We are able to manufacture the finished capacitor to your exact needs in a matter of hours when necessary.
Two Electrode - Series CSA
This classic design is the simplest and most widely used. The chip size, shape and electrical properties may be determined and specified from the dialectric material data and the capacitor selection chart.
Chip Sizes: Length or width .007" and up, square or rectangular.
Capicitance: 0.08 to 10,000 pF
Split Electrode - Series CSB
A single full electrode is provided on one side of the capacitor and split electrodes on the other side. This design opens up a number of application possibilities. This is a three terminal capacitor which can be used as two capacitors with a common electrode or as serially connected capacitors so that connections may be made on one side of the chip only. This design is often used in microstrip coupling to eliminate lead inductance and raise the self resonance frequency.
Multiple Values, Custom - Series CAX
A common electrode on one side of the chip and multiple electrodes on the other side. The capacitor array can be used as individual capacitors on a single chip or as a step adjustable capacitor by connecting combinations of electrodes to achieve the desired capacitance. Please call Compex Corp. for final details and specifications.
Step Adjustable Array - Series CAD
The arrays of capacitors are arranged in binary ratios (1-2-4, 1-2-4-8, and 1-2-4-8-16) to allow adjustment of capacitance from 1 to 31 units by connecting appropriate electrodes in parallel. Additional values of capacitance can be obtained by using series and/or parallel connections. Individual electrode values from 0.1 pF, chip size dependent on values and dielectric.
Row Caps - Series CRO
Row caps are used where arrays of capacitors (not necessarily identical) are needed, usually for decoupling/bypass of GaAs integrated circuits. Values up to 1000 pF per capacitor. Up to 8 capacitors per array are available. Typical overall dimensions range from 20x65 mils to 40x125 mils. Call Compex with your requirements.
Margin Caps - Series CSM
Margin caps have the topside electrode withdrawn from the edges in order to increase the distance between electrodes and dramatically decrease the possibilities of shorting when epoxy die mounting. This style is also widely used for optical recognition based assembly.