![]() They are commonly used to provide 100% hole-fill and to increase solder volume on a surface mount pad. They can be selectively placed anywhere on the board to increase solder volume. The advantage of tape and reel preforms is the ease of implementation in any surface mount assembly process. ![]() They're small rectangular preforms, sized to standard chip capacitor packages (i.e., 0201, 0402, 0603, etc.) and packaged in tape and reel format. Preforms are primarily used to add solder volume wherever solder paste volume is not sufficient.īy far the most popular type of preform in the market today are our standard tape and reel preforms. Hence, the solder volume is controlled very precisely and consistently wherever they are utilized. One of the most appealing characteristics of solder preforms are they are 100% alloy. Sidone: Solder preforms have been used for many years and they are produced in many different shapes and sizes and available in most any solder alloy. Goldman: I'm a printed circuit board person, and I’m not familiar with solder preforms. It is a new void reduction solution and it’s a very compelling product that addresses voiding under bottom termination components. I'm here to talk about a new solder preform product that we're introducing here at SMTAI we presented a technical paper on it at the conference. ![]() ![]() Jerry Sidone: I'm a product manager for the engineered materials, which encompasses the solder preform business for Alpha. Patty Goldman: Jerry, tell me a little bit on your background with Alpha. When I sat down with Jerry Sidone, from Alpha Assembly Solutions, I learned a great deal about solder preforms, something I barely knew existed before. One reason (of many) the SMTA International show is such a wonderful learning experience for me is because it is assembly-focused and I’m a PCB bare board person. ![]()
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