We operate in one segment: the development, marketing, and sale of semiconductor products used in electronic devices and products. We generate our revenue from three broad product categories: the Mobile product market, the personal computing, or PC, product market, and the Internet of Things, or IoT, product market. We sell our products to original equipment manufacturers, or OEMs, and to contract manufacturers that provide manufacturing services to OEMs.

Net revenue within geographic areas based on our customers’ locations for the periods presented was as follows (in millions):

	Three Months Ended
	September 30,
	2019		2018
China	$	176.8	$	227.8
Taiwan		65.2		76.4
Japan		63.2		68.5
Other		16.5		15.4
South Korea		16.4		20.1
United States		1.8		9.4
	$	339.9	$	417.6

Net revenue from our customers for each group of similar products was as follows (in millions):

	Three Months Ended
	September 30,
	2019		2018
Mobile product applications	$	184.3	$	262.7
PC product applications		67.8		68.6
IoT product applications		87.8		86.3
	$	339.9	$	417.6

Net revenue from major customers as a percentage of total net revenue for the periods presented was as follows:

	Three Months Ended
	September 30,
	2019	2018
Customer A	12%	11%
Customer B	12%	*
Customer C	*	17%

We extend credit based on evaluation of a customer’s financial condition, and we generally do not require collateral. Major customer accounts receivable as a percentage of total accounts receivable were as follows:

	September 30,	June 30,
	2019	2019
Customer A	19%	25%
Customer B	13%	*
Customer C	11%	16%