{"id":1797,"date":"2023-04-03T13:33:07","date_gmt":"2023-04-03T04:33:07","guid":{"rendered":"http:\/\/adop-mjc-test.com\/?page_id=1520"},"modified":"2026-03-26T12:46:39","modified_gmt":"2026-03-26T03:46:39","slug":"package_probe","status":"publish","type":"page","link":"https:\/\/adop-mjc-test.com\/en\/products_service\/package_probe\/","title":{"rendered":"Test Socket"},"content":{"rendered":"    <section>\r\n      <div class=\"inner title--has-image\">\r\n        <h1 class=\"inner\">Test Socket<\/h1>\r\n\r\n        <ul class=\"breadcrumbs\">\r\n          <li><a href=\"\/en\/\">Top<\/a><\/li>\r\n          <li><a href=\"\/en\/products_service\/\">Products\u30fbService<\/a><\/li>\r\n          <li>Test Socket<\/li>\r\n        <\/ul>\r\n      <\/div>\r\n\r\n      <div class=\"title-image\">\r\n        <img decoding=\"async\" src=\"https:\/\/adop-mjc-test.com\/wp-content\/themes\/adop-mjc\/img\/products\/title_package_probe_pc.jpg\" alt=\"\" class=\"switch\" \/>\r\n      <\/div>\r\n\r\n      <div class=\"lead--brown-paragraph\">\r\n        <h2 class=\"lead--brown-title\"><span class=\"show lazy\">Test sockets are customized according to testing environments<\/span><\/h2>\r\n        <div class=\"lead--brown-text show lazy\">\r\n          <p>Jigs for testing the electrical characteristics of devices in the final testing stage after LSI package assembly.<br>To match the increasingly high functionality of LSIs for communications and networks, such as mobile phones and mobile devices, we provide two types of test sockets: The \"J-Contacts\" series suited for high-frequency, high-performance devices, and the \"BeeContacts\" series, spring probes with a unique structure that delivers excellent contact stability.<\/p>\r\n        <\/div>\r\n      <\/div>\r\n\r\n      <section>\r\n        <div class=\"inner\">\r\n          <ul class=\"anchor-link--another anchor-link--another-testsocket pdg-b170 flex flex_fw flex_jc show lazy\">\r\n            <li><a href=\"#TestSocket\"><span>What is Test Socket?<\/span><\/a><\/li>\r\n            <li><a href=\"#PackageProbe\"><span>What is Package Probe?<\/span><\/a><\/li>\r\n            <li><a href=\"#J-Contacts\"><span>What is J-Contacts?<\/span><\/a><\/li>\r\n            <li><a href=\"#BeeContacts\"><span>What is BeeContacts?<\/span><\/a><\/li>\r\n          <\/ul>\r\n        <\/div>\r\n\r\n        <section>\n  <div class=\"inner\">\n    <h2 class=\"title--hyphen pdg-b70 show lazy\">List of Package Probe Products<\/h2>\n    <ul class=\"product-link2 flex_pc flex_fw flex_jsb font20--text\">\n      <li class=\"show lazy\">\n        <a href=\"\/en\/products_service\/package_probe\/qfn_son\/\" class=\"flex\">\n          <div class=\"product-link2__image\"><img decoding=\"async\" src=\"https:\/\/adop-mjc-test.com\/wp-content\/themes\/adop-mjc\/img\/products\/package_probe1.jpg\" alt=\"\"><\/div>\n          <p class=\"product-link2__title\">QFN\u30fbSON<\/p>\n        <\/a>\n      <\/li>\n      <li class=\"show lazy\">\n        <a href=\"\/en\/products_service\/package_probe\/qfp_sop\/\" class=\"flex\">\n          <div class=\"product-link2__image\"><img decoding=\"async\" src=\"https:\/\/adop-mjc-test.com\/wp-content\/themes\/adop-mjc\/img\/products\/package_probe2.jpg\" alt=\"\"><\/div>\n          <p class=\"product-link2__title\">QFP\u30fbSOP<\/p>\n        <\/a>\n      <\/li>\n      <li class=\"show lazy\">\n        <a href=\"\/en\/products_service\/package_probe\/smd\/\" class=\"flex\">\n          <div class=\"product-link2__image\"><img decoding=\"async\" src=\"https:\/\/adop-mjc-test.com\/wp-content\/themes\/adop-mjc\/img\/products\/package_probe3.jpg\" alt=\"\"><\/div>\n          <p class=\"product-link2__title\">SMD<\/p>\n        <\/a>\n      <\/li>\n      <li class=\"show lazy\">\n        <a href=\"\/en\/products_service\/package_probe\/bga\/\" class=\"flex\">\n          <div class=\"product-link2__image\"><img decoding=\"async\" src=\"https:\/\/adop-mjc-test.com\/wp-content\/themes\/adop-mjc\/img\/products\/package_probe4.jpg\" alt=\"\"><\/div>\n          <p class=\"product-link2__title\">BGA<\/p>\n        <\/a>\n      <\/li>\n      <li class=\"show lazy\">\n        <a href=\"\/en\/products_service\/package_probe\/wlcsp\/\" class=\"flex\">\n          <div class=\"product-link2__image\"><img decoding=\"async\" src=\"https:\/\/adop-mjc-test.com\/wp-content\/themes\/adop-mjc\/img\/products\/package_probe5.jpg\" alt=\"\"><\/div>\n          <p class=\"product-link2__title\">WLCSP<\/p>\n        <\/a>\n      <\/li>\n      <li class=\"show lazy\">\n        <a href=\"\/en\/products_service\/package_probe\/kelvin\/\" class=\"flex\">\n          <div class=\"product-link2__image\"><img decoding=\"async\" src=\"https:\/\/adop-mjc-test.com\/wp-content\/themes\/adop-mjc\/img\/products\/package_probe6.jpg\" alt=\"\"><\/div>\n          <p class=\"product-link2__title\">Kelvin<\/p>\n        <\/a>\n      <\/li>\n      <li class=\"show lazy\">\n        <a href=\"\/en\/products_service\/package_probe\/accessory\/\" class=\"flex\">\n          <div class=\"product-link2__image\"><img decoding=\"async\" src=\"https:\/\/adop-mjc-test.com\/wp-content\/themes\/adop-mjc\/img\/products\/package_probe7.jpg\" alt=\"\"><\/div>\n          <p class=\"product-link2__title\">Accessories<\/p>\n        <\/a>\n      <\/li>\n    <\/ul>\n  <\/div>\n<\/section>\n\r\n\r\n        <p class=\"pdg-tb170 btn-wrapper--center show lazy\"><a href=\"\/en\/products_service\/\" class=\"btn--dark-brown-back btn--wide\">Back to Semiconductor Related Products<\/a><\/p>\r\n\r\n        <div class=\"bg-gray pdg-t170\" id=\"TestSocket\">\r\n          <div class=\"inner show lazy\">\r\n            <h2 class=\"title--bg-brown title-accordion open\">What is Test Socket?<\/h2>\r\n            <div class=\"pdg-t40 font20--text font-sp14\">\r\n              <p>There are two important tests in semiconductor manufacturing.<br>One is the wafer test during the wafer process, in which electrical characteristics of chips are tested before dicing a wafer into many pieces of semiconductor (called dies or chips). The other is the final test during the assembly and testing process, which is conducted after packaging the diced chips.<br>An IC socket is used in the final test. It plays the crucial role of connecting the device and the tester, just as a probe card does in the wafer test (see the figure below).<\/p>\r\n              <p class=\"mgn-t2em pdg-b70\">Depending on the purpose of the test, IC sockets are categorized into two groups: burn-in sockets for testing reliability, including durability, and test sockets for measuring electrical characteristics. Although these two types are both generally referred to as IC sockets, the required performance varies depending on the difference in use.<\/p>\r\n\r\n              <div class=\"product-image-wrapper pdg-all60 bg-white flex flex_jc\">\r\n                <p class=\"package__image1\">\r\n                  <img decoding=\"async\" src=\"https:\/\/adop-mjc-test.com\/wp-content\/themes\/adop-mjc\/img\/products\/package_probe_explanation_en_pc.png\" alt=\"\" class=\"switch\" \/>\r\n                <\/p>\r\n              <\/div>\r\n            <\/div>\r\n          <\/div>\r\n        <\/div>\r\n\r\n        <div class=\"bg-gray pdg-t170\" id=\"PackageProbe\">\r\n          <div class=\"inner show lazy\">\r\n            <h2 class=\"title--bg-brown title-accordion open\">What is Package Probe?<\/h2>\r\n            <div class=\"pdg-t40 font20--text font-sp14\">\r\n              <p>To differentiate its test sockets that probe LSI packages in a more advanced field of measurement than that of conventional products, MJC calls these \u201cpackage probes.\u201d<\/p>\r\n              <p class=\"mgn-t2em\">MJC provides two types of test sockets: the J-Contacts series and the BeeContacts series. Compared with conventional test sockets, these series offer higher-performance test sockets that excel in electrical characteristics, particularly high frequency characteristics and contact.<br>These test sockets are suitable for testing power devices and electrical parts for mobile communication and in-car devices, and are customizable according to the testing environment.<\/p>\r\n            <\/div>\r\n          <\/div>\r\n        <\/div>\r\n\r\n        <div class=\"bg-gray pdg-t170\" id=\"J-Contacts\">\r\n          <div class=\"inner show lazy\">\r\n            <h2 class=\"title--bg-brown title-accordion open\">What is J-Contacts?<\/h2>\r\n            <div class=\"pdg-t40\">\r\n              <p class=\"pdg-b70 font20--text font-sp14\">The J-Contacts series offers test sockets with contact terminals of the unique rigid type (integrated type) using elastomer (silicon rubber), as opposed to the leaf spring type often used for burn-in sockets. Therefore, J-Contacts features shorter contact terminals than the conventional leaf spring type and superior electrical characteristics, particularly high frequency characteristics.<br>Additionally, the smooth movement of the contact terminals helps achieve ideal contact with minimal damage to devices and DUT boards.<br>These test sockets are used in the final test process for quad flat package\/small outline package (QFP\/SOP) and quad flat non-lead package\/small outline non-lead package (QFN\/SON).<\/p>\r\n\r\n              <div class=\"product-image-wrapper pdg-all60 bg-white flex_pc flex_jc\">\r\n                <p class=\"package__image4\">\r\n                  <img decoding=\"async\" src=\"https:\/\/adop-mjc-test.com\/wp-content\/themes\/adop-mjc\/img\/products\/j-contacts_explanation1_en_pc.jpg\" alt=\"\" class=\"switch\" \/> Leaf spring type vs. J-Contacts\r\n                <\/p>\r\n                <p class=\"package__image5\">\r\n                  <img decoding=\"async\" src=\"https:\/\/adop-mjc-test.com\/wp-content\/themes\/adop-mjc\/img\/products\/j-contacts_explanation2.jpg\" alt=\"\" \/> Enlarged top view of the J-Contacts\r\n                <\/p>\r\n              <\/div>\r\n            <\/div>\r\n          <\/div>\r\n        <\/div>\r\n\r\n        <div class=\"bg-gray pdg-tb170\" id=\"BeeContacts\">\r\n          <div class=\"inner show lazy\">\r\n            <h2 class=\"title--bg-brown title-accordion open\">What is BeeContacts?<\/h2>\r\n            <div class=\"pdg-t40 font20--text font-sp14\">\r\n              <p>BeeContacts is a series of spring probe-type contact terminals developed by MJC.<br>Thanks to their easy maintenance and stable contact, these contact terminals are used in test sockets from the BeeContacts series and the probe card for WLCSP.<\/p>\r\n              <p class=\"mgn-t2em\">The BeeContacts has been developed to solve a problem that occurs in the final test process of package testing, namely, the deterioration of contact of the spring-type contact terminals that are generally used.<\/p>\r\n              <p class=\"mgn-t2em\">After reviewing the conventional spring structure (comprising a plunger, a barrel and a spring), MJC adopted a new barrel-less structure (comprising plungers and a spring) for the BeeContacts series to achieve better contact.<br>The BeeContacts is designed to enable two plungers to move independently for multi-point contact. Due to the distinctive structure, the sharp plunger edges conduct self-cleaning with micro scrub movements and break through the oxidized film and foreign materials on the solder surface to achieve superior, stable contact.<\/p>\r\n              <p class=\"mgn-t2em pdg-b70\">Compared with the cylindrical plungers of spring probes, the leaf plungers of BeeContacts allow thicker plating and excel in radiation performance, making them suitable for high current measurement.<\/p>\r\n\r\n              <div class=\"product-image-wrapper pdg-all60 bg-white flex_pc flex_jc\">\r\n                <p class=\"package__image2\">\r\n                  <img decoding=\"async\" src=\"https:\/\/adop-mjc-test.com\/wp-content\/themes\/adop-mjc\/img\/products\/bee_contacts_explanation1_en.jpg?v=230131\" alt=\"\" \/>\r\n                <\/p>\r\n                <p class=\"package__image3\">\r\n                  <img decoding=\"async\" src=\"https:\/\/adop-mjc-test.com\/wp-content\/themes\/adop-mjc\/img\/products\/bee_contacts_explanation2_en.jpg\" alt=\"\" \/>\r\n                <\/p>\r\n              <\/div>\r\n            <\/div>\r\n          <\/div>\r\n        <\/div>\r\n      <\/section>\r\n\r\n      <section class=\"common-contact common-contact--en\">\n  <div class=\"inner flex_pc flex_ac show lazy\">\n    <h2 class=\"common-contact__title\">Contact Us<\/h2>\n    <p class=\"common-contact__text font-sp14\">Contact us for any support or queries you may have about our products.<\/p>\n    <p class=\"common-contact__link\"><a href=\"https:\/\/adop-mjc-test.com\/en\/contact-form?type=product\" class=\"btn--transparent poppins\">CONTACT<\/a><\/p>\n  <\/div>\n<\/section>\r\n\r\n      \n<section class=\"relate bg-gray--bottom\">\n  <div class=\"inner show lazy\">\n    <h2 class=\"title--hyphen\">Related Information<\/h2>\n  <\/div>\n\n  <div class=\"relate__wrapper show lazy\">\n    <div class=\"swiper 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