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RF3855

DS110914

7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical

support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com.

PCB Design Requirements

PCB Surface Finish

The PCB surface finish used for RFMD’s qualification process is electroless nickel, immersion gold. Typical thickness is 3

inch

to 8

inch gold over 180inch nickel.

PCB Land Pattern Recommendation

PCB land patterns are based on IPC-SM-782 standards when possible. The pad pattern shown has been developed and tested

for optimized assembly at RFMD; however, it may require some modifications to address company specific assembly pro-

cesses. The PCB land pattern has been developed to accommodate lead and package tolerances.

PCB Metal Land Pattern

Pin 1

Dimensions in mm.

A = 0.51 x 0.89 (mm) Typ.

B = 0.89 x 0.51 (mm) Typ.

C = 1.52 (mm) Sq.

A

A

A

A

A

B

B

B

B

B

B

A

A

A

A

A

C

3.20 Typ.

0.81 Typ.

0.81 Typ.

1.73 Typ.

0.94 Typ.

1.60 Typ.

1.73 Typ.

0.81 Typ.

1.60 Typ.

Figure 1. PCB Metal Land Pattern (Top View)