Effects of Key Process Conditions on Warpage and Via Protrusion of LTCC Substrate

Zhong, Zhao; Arulvanan, P.; Goh, C. K.

doi:10.1080/10426910701774726

Cited by 6 publications

(2 citation statements)

References 30 publications

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“…The form accuracy of a large-area epoxy resin mold before the post cure is 147 µm whereas the form accuracy of a large-area epoxy resin mold after a post cure is approximately 264 µm. This phenomenon explains no significant global warpage of a large-area epoxy resin mold after a post cure was observed [21]. Fig.…”

Section: Methodsmentioning

confidence: 81%

Development of a Large-Area Hot Embossing Mold with Micro-Sized Structures

Kuo

Wu²

2018

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Microtechnology is a core technology in the 21st century. Microfabrication plays an important role in the precision machinery industry. Two major troublesome issues in the mold industry are the time and expense needed for producing a mold for the pilot run in the new product development phase. The aim of this study was to propose a cost-efficient method for fabricating a large-area hot embossing mold with micro-sized structures. The advantages of this method include short manufacturing leading times, simple manufacturing processes, low manufacturing cost, and short processing time. A large-area hot embossing mold with areas of 250 mm × 350 mm was fabricated. Cost savings about 61.3 % can be reached. The manufacturing processes developed in this work possess a significant industrial application value because a new 3C product with surface texture could be reached with a large-area epoxy resin mold using hot embossing molding.

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Section: Methodsmentioning

confidence: 81%

Development of a Large-Area Hot Embossing Mold with Micro-Sized Structures

Kuo

Wu²

2018

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show abstract

“…Increasing the number of layers makes warpage worse due to these mismatches. The development of stresses resulting from the differential shrinkage of different materials, irregular shapes and asymmetric temperatures in the furnace can lead to defects such as camber or warpage, which can reduce the production yield (Zhong et al , 2008).…”

Section: Warpagementioning

confidence: 99%