The package size of SMT-machined SMD components, and SMT-processed SMD resistors, are generally 9 packages and are expressed in two size codes. A size code is an EIA (Electronic Industry Association) code represented by a 4-digit number. The first two and the last two digits represent the length and width of the resistor, respectively, in inches.
The 0603 package we often say refers to the English code. The other is the metric code, which is also represented by 4 digits and its unit is mm. The following table shows the relation between the imperial and metric and the detailed dimensions of the chip resistor package: for example, a 0.127mm (5 mil) thick ladder laser cut
Electro-polishing the template to meet the solder paste screen printing on the circuit board. Because the release properties of solder paste are not yet known, some pad designs contain intra-plate holes and the determination of this is entirely dependent on the conventional template design test. Results The pores of all 0201 devices were designed to:
The ratio of pads is 1:1. Since this circuit board also contains other components including CCGA devices, a 0.127mm (5 mil) thick template may be the thinnest template, and no design stepsets are designed to prevent damage to the board. Other devices Pieces of solder joints. The aspect ratio from this design is between 2.4 and 3.2. The area ratios of the areas range from 0.72 to 0.85. Based on these values, excellent solder paste release effects can be expected.