Pengendalian Kualitas Dengan Pendekatan SPC Dan FMEA Pada Proses Perakitan Smartphone (Studi Kasus : PT. Adi Reka Mandiri)

(Studi Kasus : PT. Adi Reka Mandiri)

Abstract

PT. Adi Reka Mandiri (ARM) is one of the Local Electronic Manufacturing
Services that produces finished goods such as STB (Set Top Boxes), Network
Routers and Smartphones. One of the products is Smartphone products, there are
still many defective products that are not in accordance with company standards.
The percentage of smartphone product defects in the period January 2022 - June
2022 reached 0.57%, exceeding the tolerance for product defects in the company,
which was 0.1%. The types of smartphone product defects include LCD Crack, LCD
Black Spot, Speaker No Sound, Battery Leaking, Camera Fail, and Fingerprint
Fail. This study aims to analyze the causes of defects and provide recommendations
for improvements to improve quality. The method used is SPC (Statistical
Processing Control) and FMEA (Failure Mode and Effect Analysis). The stages in
the research began with collecting data, analyzing data with SPC, determining RPN
values using FMEA, and recommending improvements. The results of the research
show that the most dominant product defects are LCD Black Spot (47%), LCD
Crack (22%), and Camera Fail (15%), the three defects account for 84%. The cause
of disability is caused by human, material, and machine factors. The highest RPN
value is 432 on a cracked LCD due to a lack of machine settings. The improvement
recommendation is to perform each configuration before assembling a new type.