Challenges Grow For Creating Smaller Bumps For Flip Chips


New bump structures are being developed to enable higher interconnect densities in flip-chip packaging, but they are complex, expensive, and increasingly difficult to manufacture. For products with high pin counts, flip-chip [1] packages have long been a popular choice because they utilize the whole die area for interconnect. The technology has been in use since the 1970s, starting with IBM�... » read more

Focus Shifting From 2.5D To Fan-Outs For Lower Cost


Semiconductor Engineering sat down to discuss advanced packaging with Calvin Cheung, vice president of engineering at ASE; Walter Ng, vice president of business management at UMC; Ajay Lalwani, vice president of global manufacturing operations at eSilicon; Vic Kulkarni, vice president and chief strategist in the office of the CTO at ANSYS; and Tien Shiah, senior manager for memory at Samsung. W... » read more

Making 2.5D, Fan-Outs Cheaper


Now that it has been shown to work, the race is on to make advanced [getkc id="27" kc_name="packaging"] more affordable. While device scaling could continue for another decade or more, the number of companies that can afford to develop SoCs at the leading edge will continue to decline. The question now being addressed is what can supplant it, supplement it, or redefine it. At the center o... » read more