PIN SOCKETS (CAGE JACKS)HAVE MINIMUM PARASITIC RESISTANCE, INDUCTANCE AND CAPACITANCE CONTACTS COPPER --- SOLDER PCB DIELECTRIC ELECTRIC F72 SOLDER SOLDER 一 CAPPED OR UNCAPPED VERSIONS AVAILABLE Figure 9. 4 There is a commercial breadboarding system which has most of the advantages of "birds nest over a ground plane, or deadbug" (robust ground, screening, ease of circuit alteration, low capacitance and low inductance)and several additional advantages: -it is rigid, components are close to the ground plane, and where necessary node capacitances and line impedances can be calculated easily. This system is made by Wainwright Instruments and is available in Europe as"Mini Mount" and in the usa(where the trademark"Mini-Mount" is the property of another company) as"Solder-Mount"[Reference 2 Solder- Mount consists of small pieces of PCB with etched patterns on one side and contact adhesive on the other. They are stuck to the ground plane, and components are soldered to them. They are available in a wide variety of patterns, including ready-made pads for IC packages of all sizes from 8-pin SOICs to 64- pin DILs, strips with solder pads at intervals(which intervals range from 0.040"to 0. 25", the range includes strips with 0. 1" pad spacing which may be used to mount DIL devices), strips with conductors of the correct width to form microstrip transmission lines (50ohms, 60ohms, 75ohms or 100ohms)when mounted on the ground plane, and a tS riety of pads for mounting various other components. A few of the many types of older- Mount building-block components are shown in Figure 9.56 PIN SOCKETS (CAGE JACKS) HAVE MINIMUM PARASITIC RESISTANCE, INDUCTANCE AND CAPACITANCE Figure 9.4 There is a commercial breadboarding system which has most of the advantages of "bird's nest over a ground plane, or deadbug" (robust ground, screening, ease of circuit alteration, low capacitance and low inductance) and several additional advantages:- it is rigid, components are close to the ground plane, and where necessary node capacitances and line impedances can be calculated easily. This system is made by Wainwright Instruments and is available in Europe as "Mini￾Mount" and in the USA (where the trademark "Mini-Mount" is the property of another company) as "Solder-Mount"[Reference 2]. Solder-Mount consists of small pieces of PCB with etched patterns on one side and contact adhesive on the other. They are stuck to the ground plane, and components are soldered to them. They are available in a wide variety of patterns, including ready-made pads for IC packages of all sizes from 8-pin SOICs to 64-pin DILs, strips with solder pads at intervals (which intervals range from 0.040" to 0.25", the range includes strips with 0.1" pad spacing which may be used to mount DIL devices), strips with conductors of the correct width to form microstrip transmission lines (50ohms, 60ohms, 75ohms or 100ohms) when mounted on the ground plane, and a variety of pads for mounting various other components. A few of the many types of Solder-Mount building-block components are shown in Figure 9.5